Environmental technologies top italian directory 2015 (hr)

ENVIRONMENTAL

TECHNOLOGIES

TOP

ITALIAN

DIRECTORY

ENGLISH EDITION

AMBIENTEHI-TECH

ALLEGRI

AMBIENTHESIS

CIEM IMPIANTI

FIDIA ENGINEERING

FORMECO

HYDRO ITALIA

MOTIVE

NCR BIOCHEMICAL

WAMGROUP

P. 4-5

P. 6-7

P. 8-9

P. 10-11

P. 12-13

P. 14-15

P. 16-17

P. 18-19

P. 20-21Hi-Tech Ambiente

Enviromental Technologies 3

COMPANIES

Hi-Tech AmbienteEnviromental Technologies 4

Allegri Ecologia company hasbeen operating in the field ofurban and industrial water treat-ment for almost 30 years. Thecompany designs and manufac-tures machines and equipmentfor the various different stagesof the waste water treatmentprocess: both in new plants andin implementation and revam-ping of already existing ones,Allegri components ensure verygood performances, high effi-ciency, long-lasting durability.Being the result of a continuousresearch activity, carried out inorder to optimize already avai-lable water treatment systems,they offer many important ad-vantages, such as : high reduc-tion of occupied areas and of ci-vil works costs; very simpleplant management, with lowrun costs and low energy con-sumption. Chiariflus® Lamella clarifiersand oil separators: they speedup solids precipitation as wellas oil surfacing, improving effi-ciency of traditional static sy-stems. The sheets composinglamella packs are placed side byside, in vertical position, andnot overlapped one another: thisensures the greatest structuralstrength and makes Chiariflus®

lamella packs non-deformable.They are conveniently installedboth in new WWTPlants, wherethey allow to reduce the area re-quired for clarification / de-oi-ling stage, and in already exi-sting settlers, when it is neces-sary to upgrade the flow-ratetreated by the plant.They can be supplied alreadyinstalled in a proper containingtank (“enbloc” version), in car-bon steel or stainless steel Aisi304L/Aisi 316L, according tothe aggressiveness of water tobe treated. Each Chiariflus® En-bloc Clarifier is divided in twoparts by a longitudinal perime-

tral flange, so that they canalways be transported by regu-lar size trucks and /or contai-ners, and easily fitted togetherwhen unloaded at the destina-tion yard.RBD® Biological Disk Rotors:they attend to the biologicaloxidation stage, both for urbanwaste water treatment and forindustrial plants (food indu-stries, dyeing houses, petroche-mical, paper, textile industryand others). Rotors working sy-stem is very simple, self-regula-ting, so that it doesn’t requirespecialized personnel , on the

contrary necessary in traditionalplants. Moreover, the electricpower required for a rotor oxi-dizing stage is up to 1/15 (0.6watt per inhabitant), comparedwith power consumption ofother oxidizing systems. A-nother important advantageconcerns the settling speed, asthe sludge flocks produced bybiological rotors are quite large,so that they settle down veryquickly (up to 20m/h). This al-lows to reduce considerably thesize of final clarification basins,with great saving on masonryworks costs. Moreover, the ma-chine covering will protect bac-teria flora from low temperatu-res and will avoid bad smellingaround.Chiarifilter® Filtration plants:after oxidizing section or finalclarification, a tertiary filtrationstage will allow to get clearerwater, in order to respect law li-mits and/or reuse treated water.Chiarifilter® filtration plant is avery simple and reliable sy-stem: waste water flows intothe filter, the solids are caught

by the cloths inside and clearwater runs out of the machine.standard production includesmachine sizes able to treat up to500 m³/h flow rates. The poro-sity of clothes varies from 20 to100 micron, and will be chosenaccording to costumer’s needs(kind of water to be processedand quality of water requestedat the end of treatment process).The whole machine structure,clothes included, is realized instainless steel, in order to ensu-re the best and long lasting qua-lity of the product. Thanks to the modular systemand the little space taken up bythe single machine, it’s possibleto process big flow rates and, atthe same time, spare on civilworks costs. Chiarifilter® can besupplied complete with contai-ning stainless steel tank, or beinstalled in already existingconcrete tanks. A control boardis always included, as the filterand its accessories are comple-tely automated. Compact Plants for small com-munities and industries: AllegriEcologia has recently designeda complete compact plant, ableto treat waste water comingfrom small communities andfrom small industries or hand-crafts. it includes the variousnecessary stages of treatment,depending on the specific situa-tion: a preliminary study of Cu-stomer’s needs and problemswill be followed by a technicalproposal, offering compact so-lutions, easy to be installed andrun. if necessary, plant may includea remote control, so to get ea-sier running check-up andmaintenance works planning.Allegri Ecologia offers its freetechnical advice in order to findout the solution which guaran-tees the best working andperformance of the plant.

Compact Plant

ALLEGRI Geom. Primo SrlVia Praga, 5 - 43010 Bianconese di Fontevivo (PR) - ITALY

Tel.+39.0521.618579 Fax +39.0521.656407

[email protected]

Waste Water TreatmentWater recovery and re-use, with minimum

environmental impact and reduced plant running costs

Biological Disk Rotors


There is a wide understandingbetween green economy entre-preneurs that this economic cri-sis is deep and that it demandschanges, but at the same time thebelief that innovates, differentia-tes, converts manufacturing andconsumption towards a green ap-proach could significantly con-tribute to fuel an economic reco-very, with investments in newmarkets. italy is experiencing ahistorical moment on the recla-mations side of a stalled market,also because of the real estatesector crisis; foreign countriescan therefore imply an importantsource of development. Am-bienthesis, with its twenty-yearexperience in the remediation ofcontaminated sites - with over150 restored areas including si-tes of national interest – therefo-re, poses as a key worker for Eu-ropean markets especially Ea-stern European and non-Euro-pean markets, where the Group’scutting-edge technological ex-pertise would represent an im-portant development opportunityin the environmental sector forthese countries.

Alberto Azario, Chairman ofAmbienthesis – a company listedon the Milan stock Exchange -explains the Group's strategiesand the prospect of new interna-tional markets.

The Italian reclamation market,also due to the decline of thereal estate sector, appears to ha-ve stalled. Can foreign countries

become a possibility then?i would like to start by sayingthat, despite a stagnant domesticmarket, Ambienthesis is opera-ting on the two most importantreclamations at this time in italy:the former Falck areas in sestosan Giovanni and the former A-lumix area in Portoscuso in sar-dinia. Nevertheless, develop-ment is our Group’s primaryobjective and from this point ofview foreign countries definitelyrepresent a great opportunity.

As the historical leader of theenvironmental sector, what is thepolicy on international develop-ment at Ambienthesis? Which

countries do you have inmind? Can Eastern Euro-pean countries representan area of potential deve-lopment?We have Eastern Euro-pean countries in minddue to geographicalproximity, historical pre-sence of industrial andcommercial partnershipswith italy, and a benefi-cial phase for developingthe gross domestic pro-duct of these countries.However, we are alsolooking at Middle Ea-stern countries.

Ambienthesis already hasa presence in Wales,where it has a landfill a-ble to contain approxi-mately 1,250,000 tons ofwaste. A project was car-

ried out according to the highestoperating and quality standardsthat was recognised by the Envi-ronment Agency in Wales for itsinnovative solutions. Are thereany other active or prospectiveprojects abroad that are beingdefined?

Our presence in Wales could al-ready be a positive developmentduring the course of 2015. Weare also working to launch newinitiatives, but we are not at suchan advanced stage yet to be con-sidered as having won an awardin aid of Ambienthesis and, the-refore, be transferable to themarket.

For years Ambienthesis hasbeen operating as a leadingcompany in the reclamation andtreatment of industrial waste.What are the technologies thatyour Company could be puttinginto place to make it stand outabroad?A comprehensive technical an-swer would probably be toolong and complicated, to sum-marise we can confidently saythat we are able to address alldifferent types of intervention.Above all, we can reclaim bothland and foothills, using mobileand/or fixed equipment, whichindeed in italy we are most ex-perienced in.

Are there any specific differen-ces between investing abroadand in Italy in terms of procedu-res, bureaucratic requirements,start-up costs, which could pushtowards the preference evenmore for the international solu-tion in the future?Considering that italy is defini-tely a country with particularlystrict legislation and especiallythe most complicated in theworld for permitting proceduresand monitoring, interventions a-broad certainly do not alarm usfrom this point of view. Of course, being able to counton greater support from nationalorganisations and lenders, to fa-vour investments of italian com-panies abroad would be a greathelp on the financial front, whi-ch often has a significant im-pact.

Alberto Azario, Chairman of Ambienthesis

Sustainable development must go beyond the conceptof simple environmental protection and become the driving

force of economic development, transforming wastemanagement into growth opportunities definitively

Interview with Alberto AzarioChairman of Ambienthesis


The new revolutionary depura-tion system patented by Ciemimpianti is the first and the onlyexternal oxygenation system forbiological tanks, which guaran-tees multiples advantages redu-cing the maintenance and energyconsumption costs and increa-sing your civil, zootechnical andindustrial treatment plant perfor-mances.

TECHNICAL DETAILS

The treatment process is perfor-med inside an accumulation tankwhich is aerated by the externalmodular system EOX in order tosupport the Microbioflottazionebiological process. inside theEOX oxygenation reactor madein stainless steel, a pipe networkconnected to an appropriatenumber of nozzles is installed,mounted to create a proper

mixing of the wastewater contai-ned in the reactor.A centrifugal pump aspires thewastewater from the bottom ofthe tank and distributes it under

pressure with an induction col-lector inside the EOX reactor.The system is overpowered withan air-blower in order to obtainan higher oxygenation capacity

for kW absorbed. The mixed li-quor leaves the reactor EOX andis injected into the discharge pi-pe and enters inside the treatmenttank where a flow acceleratorimmediately mix it with the li-quid volume.

OXYGENATION CHARACTERISTICS

inside the EOX oxygenationreactor, due to the plant structureand the particular conditions ofwork, the wastewater to be trea-ted expands and pulverizes (par-ticle sizes from 6 to 20 μm), inti-mately mixing, under turbulenceregimen, with the air aspired forthe expansion effect. As a result, the oxygen of the airin contact with powder particlesof the waste water and in a stateof high kinetic agitation, dissol-ves in the particles themselves inmore intense manner, because ofthe greatly expanded surfacesand films of interface betweenoxygen and wastewater, (rangingfrom 3,000 to 10,000 cm2/gr wa-

“Innovation in depuration”Ciem Impianti pioneering a new-patented technology

for external biological tanks oxygenation


ter) with reduced thickness, incontinuous replacement for thesaid kinetic agitation (turbulen-ce). Through the aeration inside theEOX reactor, thanks to wholeextensive area of wastewater par-ticles in contact with oxygen,which is generated by the sy-stem, along with the strong kine-tic agitation of the particlesthemselves, the constants of tran-sfer are very usefully increasedin favour to energy consumption.The dissolved oxygen in the wa-ste water in the said intensivemanner completely oxidizes thereducing inorganic substancespossibly present (sulphites,sulphides, etc.., decreasing thetoxicity for the biomass, measu-red in equitox up to 99%), andsupports a bio-oxidation processof the nitrogen and organic mat-ter, including, at least in part,those refractory to conventionalbiological treatments. As a mat-ter of fact the peculiar functionconditions trigger a sequence ofchemical-physical oxydation/cracking processes which lead tobetter treatment performanceswith “problematic” waste watercompared to traditional oxygena-tion systems. Moreover, such peculiar and “ex-treme” environmental conditionsselect a bacteria biomass with ahigh turnover and fast kinetics. The peculiar EOX characteristicscan also take advantage of liquidoxygen besides atmospheric air.

ADVANTAGESWITH EOX REACTOR

A biological treatment plant fit-ted with external oxygenationreactor EOX offers the followingadvantages:- Simplicity of the plant. Theoxygenation system is external tothe treatment tank and occupies avery small area. Only a simpleflow accelerator to mix the volu-me of treated water, is installedinside the tank. Any accumula-tion of sludge and foam forma-tion is avoided. - Control simplicity. The systemrequires a low personnel controland a minimal ordinary mainte-nance since simple machines likea centrifugal pump and an airblower regulate mechanical andphysic parameters of the process.

Variable frequency drivers regu-late the work frequency of thepumps and the air blower, accor-ding to data collected from para-meters probes.- Emissions reduction. Due tothe high oxygen efficiency tran-sfer the air volumes required arelower, the mixing of air/watertakes place in a closed tank andthe distribution of the aeratedmix in the liquid volume is inminimum turbulence conditions.- Easy maintenance. Extraordi-nary maintenance of the biologi-cal treatment tank is no longernecessary using EOX system,since the treatment tank itselfdoes not need to be emptied andcleaned or requiring the use ofspecial machines (crane, etc.) toextract the oxygenation system.A person can make the mainte-nance of one EOX reactor (outsi-de of the tank) easily in onehour. Moreover, the plant shut downfor maintenance is also no longernecessary since for medium andbig size plants, due to its simpli-city, the new EOX system can beequipped with a parallel by-passline, which can be activated du-ring maintenance operation in or-der to keep constant the oxyge-nation performances.- High treatment capacity. Onbiorefractory molecules and onwastewater with high Nitrogenload. Treatment with EOX highpressure system can significantly

increase the BOD/COD rate andthen enhance the biodegradabi-lity of pollutant molecules.- Low sludge production. Redu-ced sludge production due to or-ganic biological degradation byhigh efficiency biomass.- Low energy consumption.Thanks to the characteristics ofMicrobioflottazione process inthe biological degradation of theorganic pollutant load, the sy-stem can reduce the energy con-sumption up to 50% if comparedwith a classic mechanical aeratortreatment plant and up to 20-30%if compared with a submergedmembrane plates treatment plant.- Treatment flexibility. Thanksto the high oxygen transfer capa-city and the control of the motorswith variable frequency driversand a CPU with data acquisitionprobes the system can absorb alarge variations of the inlet pol-luting load so optimizing perfor-mances and energy consumption. - Reduced environmental im-pact. Bad smell and aerosols areminimized whilst noises are re-duced.- Revamping of existingWWTP: Minimal installing ope-ration in short time, without newcivil works

EOX + MBR REVAMPINGCASE HISTORY

The case history show a revam-ping operation in a spanish fac-

tory for the treatment of specialhigh-polluted wastes (plastic,paints, mineral oils, landfill lea-chate, etc.). The necessity to highstandard quality and the possibi-lities to reuse the treated water,led to the necessity of an upgradewith a new advanced treatmentphase. The best solution to reachthe goal, thanks to new treatmenttechnologies, was to use an MBRsystem. The MBR system supported bythe Microbioflottazione processwith EOX system, reached excel-lent and stable results in the ou-tlet treated water, in terms of mi-cro-pollutants, suspended solidsand nutrients removal.The installation of an externaloxygenation system (EOX) to re-place the old biological aerationsystem and ultrafiltration mem-branes set for an MBR process,permitted to keep an high con-centration biomass inside thebiological tank in order to gua-rantee high treatment performan-ces with inconstant flow.EOX with an MBR system, hasled to a COD removal from 84%to 94%, and thanks to the oxyge-nation efficiency, the removal ofNitrogen was about from 85% to98% thanks to the MBR ultrafil-tration capacity to keep insidethe biological plant nitrificantbiomass.After the Microbioflottazioneplant installation, with externalEOX reactor system, thanks tothe high performances to treatraw waters, the old Fenton sy-stem has been turned off (or usedonly in extremely rare case) witha important energy save, mainte-nance and running costs reduc-tion by more than 35%.

CIEM IMPIANTI SrlVia Torquato Tasso, 39 - 21100 Varese

Tel +39.0332.831776 - Fax +39.0332.319278

E-mail [email protected] - www.ciemimpianti.com


Population is increasingly payingattention to the emission of fineparticles into the atmosphere,that is identified as the main pol-lutant we breath. Each year in thecities is renewed the problem ofovercoming what is commonlydefined PM10 or PM2.5, theparts of particles in the air whosedimensions are smaller than re-spectively 10 and 2.5 microns.This is the particulate in thelower air strate, made of micronand sub-micron parts. Attentionis more and more focusing onPM2,5 , the finer particulate,which is more easily capturedand fixed by the alveoli in ourbody. The presence of fine parti-cles is mainly associated to traf-fic and residential heating pro-blems, the most popular organiccombustion processes familiar tous. it is known that that the more or-ganic matter is complex andcombustion imperfect, the grea-ter is the production of unburnedmicron particles (typical exampleis diesel, compared with gasoli-ne, about internal combustion en-gines).However, there are several com-bustion or simply thermal hea-ting processes that generate e-mission of fine particles and thatcan be simply defined as "Orga-nic fog" (in some cases they areinorganic). Thermal phenomena that produ-ce this type of fog are very fami-liar to us, such as cigarettesmoke, with its typical blue smallplume, due to unburned bitumi-nous substances, or wood firesmoke (especially when it is wet)which produces, due to the im-perfect combustion of resinoussubstances, a plume which is of-ten visible from far away. Thesame thermal phenomena can ge-nerate the emissions of micronand sub micron particulate alsoon industrial scale; e.g. are bio-

mass combustions and drying aswood, olive pomace and marccoming from pressing grapes,thermal treatments of rawsynthetic fabrics and thermalheating of many plastic substan-ces.The organic particles tend tomake when in contact with theatmosphere and especially incold weather, a visible fog whichspreads in the space above thechimney, with a plume that ispersistent and extinguished onlyat considerable distances fromthe emission point. in particularweather situations (e.g. thermalinversion) the plume tends to sta-gnate on the ground, causingconsiderable nuisance to thenearby businesses and residentialareas. For this particle size, theexisting gas treatment technolo-gies achieve with difficulty thehigh abatement yields, becausethe particles less than 5 microns(and especially less than 1 mi-cron) tend to escape from anywet wash, except for Venturi jetsystems (however, with high o-perating costs resulting from si-gnificant flow resistance) and fa-bric filters bag (which may con-stitute fire and clogging risks).For this type of emissions, thewet electrostatic technology de-veloped by Fidia Engineeringcan achieve high removal effi-ciencies by using a safe two-sta-ge treatment - The first one with a preliminarywashing phase (cooling or pre-

scrubbing), where larger particlesare broken down and the flue gasis saturated, creating a "cloud"made of micro-droplets, which isdragged into the next phase. Thisphase promotes the ionizationand therefore the capture of finerparticulate (sub-micronic);- The second stage is the real e-lectrostatic filtration section whe-re, making use of an high-voltageelectric field and the consequentgeneration of electrostatic di-scharges, the smaller particles(responsible for plume’s persi-stence) are ionized (negativelycharged) and cut down. The ioni-zation electric field varies aroundan average value of 30-50000DC, with an electronically con-trolled discharge which reactsdepending on the resistivity ofthe gas flow. The voltage is ap-plied by a special transformer e-quipped with a rectifier and acontroller, that adjusts the systemdepending of various flue gasconditions.The saturated gas, uniformly di-stributed over the entire filtersection, passes through the seve-ral tubes-electrode.in the middle of each tube is lo-cated a ionization electrode, nor-mally under electrical voltagethat through metal spikes, appro-priately distributed over the enti-re length, generates "electronclouds "that load the pollutingparticles passing through the tu-bes.The particles which pass through

the space between the metalspikes and tube-collectors wallsare intercepted by these electronclouds and, once negatively char-ged, are drawn on the pipes innersurface, which is electrically con-nected "to the ground" and con-stitutes the 'positive electrode’ ofthe system. Once they are "mi-grated" on-tube collectors, theparticles are deposited on the in-ner surface, slipping in the belowwater tank.The process is encouraged by thepresence of water droplets whichare micro-dispersed in thesmoke. The electrode tubes andall the electrostatic section are re-gularly washed, automatically,by a superior ramps system e-quipped with nozzles (anti-clog-ging), thereby maintaining the ef-ficiency of the filter over the ti-me. The pressure drop relevant tothe section of electrostatic collec-tion is extremely low, estimatedabout 15 mm. An interesting example of our re-cent application of an electrosta-tic wet precipitator is that one in-stalled at the service of a gastreatment line of a “middle i-taly” company specialized indrying olives pomace, which is afinal biomass fuel. The installa-tion of the electro filter made itpossible to meet particularlystrict limits imposed at the regio-nal level and to resolve the long-standing problem induced bypersistent smokes in the surroun-ding residential areas. From visual comparison betweenfumes living chimney with elec-trostatic filter off (washing pha-se) and the electric field active, itis clear that in the second casethere is no longer the plume per-sistence. The wet electrostatic te-chnology is applied successfullyto many other types of fumes co-ming from combustion anddrying processes and heat treat-ments.

Before After

Remove PM2,5 from smokesThe new horizons to remove fine particulates

using a two-stage treatment


Hydro italia is a leading com-pany, with decades of experience,dealing with success in the fieldof industrial and civil wastewatertreatment, especially in the treat-ment painting spray booths water,offering customized solutions anda complete service which inclu-des the design of the system ac-cording to the specific needs ofeach user, the production of thesystems, installation and technicalassistance in addition of course tothe range of chemicals productsspecially formulated in the opera-ting process.Prior to the delivery of “turnkey”systems, Hydro italia examinesall the problems of the customerthrough a design department that“customizes” the system on thebasis of the results of treatmenttrials carried out in our chemicallaboratory.Moreover, in addition to achie-ving sure savings of both timeand money, Hydro italia systemsare targeted in a very modern wayto hygiene, occupational safetyand environmental protection.Hydro italia has installed sy-stems in the following countries:italy, France, spain, Portugal,Turkey, Russia, Korea, slovenia,Czech Republic, slovakia, Po-land, UK, syria, United states,

China, iran, Argentina, Brazil, in-dia, Thailand, Rumania, south A-frica.The company works in the fol-lowing sectors:- industrial: pre-treatment andtreatment of process water withany type of technology (ion ex-change resins, physical-chemical,flotation, oil separation, evapora-tion, osmosis, etc.); drainage finaltreatment through the most suita-ble techniques for removal or reu-se of pollutants after their treat-

ment- Domestic: water purifying treat-ments, filtering, deferrization,manganese removal, softening,demineralisation, microfiltration,ultrafiltration and reverse osmo-sis; any type of waste water biolo-gical treatment. The fields of activity are: mecha-nical engineering, chemical indu-stry, electroplating industry,wood industry, automotive indu-stry, tanning industry, naval avia-tion industry, petrochemical indu-

stry, plastic industry, food indu-stry, resin -based adhesives, pol-luted sites decontamination, urbaneffluent treatment, painting, paintfactories, dying factories cleaners,pharmaceutical industry, demine-ralization systems (resins sy-stems, painting spray booth slud-ge removal, decontamination onthe spot, biological systems, batchtreatments, physical-chemical sy-stems, oil separation systems, ad-sorption filtration, reverse osmo-sis, membrane systems, evapora-tors, customized solutions, chemi-cals).

BIOLOGICAL PLANTS

That kind of systems is indicatedfor the purification of domesticand/or industrial waste, if assimi-lable to the domestic ones (that islinked to productive activity basi-cally characterized by organiccharges, more or less continuous).Biological depurative typologies,for the treatment of civil waste,can be schematized as follows: 1. Active sludge plants, based onthe purification carried out by asuspended bacterial mass. Theyhave been successful for a long ti-me for their great running elasti-city, the relatively reduced roomthey need and its sufficiently rea-

Global solutionsfor water treatment

Reverse osmosis membranesystems

Spray booths water sludgeremoval

Chemicals Customized solutionBatch treatments Biological plants


sonable expenses.2. Percolator filter plants, basedon the purification carried out bya bacterial mass and other organi-sms developing on a fixed sup-port. They are characterized bythe simple running and exercisereduced expenses. 3. Biodisk plants, based on the es-sential scheme typical of percola-tor filters, they use, as a supportfor the bacterial mass, suitable di-sks in plastic material, put in rota-tion and partially immersed in theeffluent to be treated. They areparticularly suitable for small andmedium communities. in such ap-plication they represent an impro-vement compared to the percola-tor filters, keeping anyway lowthe consumption of energy.4. Diaphragm plants come fromthe combination of the activesludge traditional process and fil-tration on partially impermeablemembranes process. The mainadvantages linked to that techno-logy must be sought in the chanceto remove or reduce the sedimen-tation unit downstream the biolo-gical section, therefore in thechance to drastically reduce thedimensions of the systems. Thesludge-water separation, in fact, isassured by a partially impermea-ble membrane and no more con-ditioned by the capacity of sedi-mentation of the active sludge.

REVERSE OSMOSIS

it is a physical process based onthe employment of partially im-permeable membranes, capable ofseparating the salinity of pure wa-ter.The reverse osmosis treatmenthas by now established itself asone of the most valid purificationsystems, both for primary water(e.g. desalination of brackish wa-ter, raw water) and for differenttypes of wastewater (if combinedwith proper pre-treatmentmethods).The osmotised water is requiredin several industrial applications,such as textile, galvanic, electro-nic, pharmaceutical, food industryin general, car wash, etc.

FILTRATION/ADSORPTION

The filtration makes a physicalseparation of solid bodies contai-ned in the water.

The filtration systems, made avai-lable by Hydro italia, satisfy anyneed, both for drinkable and pro-cess water, as well as further puri-fication treatment of domestic andindustrial waste water. Filteringquartz, carbon, mechanical, andmixed systems are available and

anyway they are made accordingto the applications required.By adsorption it is meant theadhesion of a gaseous or in solu-tion substance to the surface of aporous adsorbent material. Theadsorbent materials more used inthe water treatment are active car-

bons. The most indicated uses ofthe adsorption on active carbonare the following: removal of badsmell, bad taste and many organicsubstances dissolved in water (co-louring agents, solvents, deter-gents, mineral and vegetable oils,etc.).The filtration/adsorption systemscan be applied in various fields:primary water treatment and puri-fication, treatment of some typo-logy of drains (car washes, wa-shing water), finishing or safetytreatments of waste water afterphysical-chemical or biologicaltreatment.

OIL SEPARATORS

Oils and grease are present in se-veral domestic drains and are ty-pically present in much water co-ming from industrial waste water.its elimination seems to be neces-sary, even if with different tar-gets, to separate the oily phasefrom the watery one, before theintroduction in any natural waterbody or before proceeding to thepurifying treatment of the wastewater, if that contains oils and hy-drocarbons. in practical applica-tions, two typology of oil separa-tors can be distinguished: staticoil separators by gravity with at-mospheric pressare, oil separatorsby coalescence.

DECONTAMINATION ON THE SPOT

in the dismantling of dismantledindustrial areas very often pollu-ting situations emerge related tothe ground and to possible un-derlying layers. To that end Hy-dro italia developed some sy-stems able to decontaminate aqui-fers. The target established for thedesign of those systems is the pu-rification of polluted aquiferswithin the limits of the low.The purifying process will be a-dapted to the specific case, star-ting from a general basic pattern.The systems proposed by Hydroitalia have a modular frame andconstitute a range of models withdelivery from 5 to 20 m³/h. Eachmodel represents a single phaseof the purifying treatment. Eachtime the system will be composedwith just the elements useful tothe purification, according to thecharacteristics of the water itself.

HYdRo ITALIA SrlVia Torricelli, 79 Z.Ind. Fossatone

40059 Medicina (Bo) - Italy

Tel +39.051.856263 - Fax +39.051.856282

E-mail [email protected]

Decontamination on the spotDemineralization systems resinplants

Evaporators Filtration and adsorption

Oil separators Physical-chemical plants


Motive was already known forits innovative variable frequencydrives, as the one that launchedthe first wi-fi remote controlledmoto-inverter called Neo-WiFiBefore Neo-WiFi, there werefactors that limited the availabi-li ty of motor-inverters: forexample the degree of protectionthat was needed (motors can beinstalled out in the open, whileinverters normally could not) orthe fact that the motor-inverterwas too far or uncomfortablefrom whoever had to commandit. Motive had solved all pro-blems with Neo-WiFi: full ofpatents, easy to be understoodand used by beginners, iP65,with removable keypad, remota-ble wireless.

BUT IT DIDN’T STOP THERE

The last innovation of Motive,introduced in “Hannover Messeindustrie” is Neo-solar: an in-verter for assembly on motorboard, directly powered by solarpanels, and the novelty consistsin the fact that, even if it is a va-riable speed drive that can ope-rate also “island mode”, that isto say without power supplyfrom the net, it needs no voltagestabilizers and batteries betweensolar panel and inverter. it canbe mounted, for instance, on apump used in places where theelectrical power supply is not a-vailable, but also simply to havehot water while saving energy. in the sector, at present very rareinverters with such capacity exi-st and, apart from not being in-tended for an on-board assem-bly, they have high prices. Onthe contrary, when this solutionis available on the market, besi-des being effective, it will be

characterized by a right priceand will contribute in achievingnotable savings in the energybill. in solar pumps, the classic alter-native is to use dc motors. Com-

pared to these, Neo-solar offersthe following advantages:- it can work with a wider num-ber of pumps that are already in-stalled, since these are normallywith AC motors, without any

need to replace the pump. ACmotors are in fact the most usedon pumps, they are more econo-mic and they can reach premiumefficiencies (iE3)- The installation and the main-tenance of these systems is k-nown and accessible for all tech-nicians worldwide- Compared to DC pumps thecurrent is lower, the cables areof thinner section, and there areless cable losses. - it is possible to connect thepump at the same time to solarpanels and to the net or a gene-rator, to make it work when thesun is not enough or during thenight. - Higher max power, up to22kW

Island system for AC solarpumps and motors Neo-SolarMotive is an emerging outsider in the power transmission field,

born in 2000 and driven more and more by innovation

MoTIVE SRLVia Le Ghiselle, 20 - 25014 Castenedolo (BS) - Italy

Tel +39 030 2677087 - Fax +39 030 2677125

E-mail [email protected] - www.motive.it


objectives: to reduce the produc-tion of sludge and energy con-sumptionResults: treatment for 6 consecuti-ve months allowed the purifier toreduce the production of sludge by38% and energy consumption by34%

NCR Biochemical has prepared aneffective program to assist thebacterial flora of a purification sy-stem through the addition of spe-cialised bacterial cultures for thedegradation of lipid substances offungal strains. The contemporaryuse of fungi and bacteria allows anincrease in the reduction rates ofoverall organic matter and the eli-mination of compounds generallyconsidered not very biodegrada-ble, while reducing the amount ofexcess sludge and the consump-tion of energy required for biolo-gical oxidation.This program can address the fol-lowing matters: improving the o-verall operation of the station(TKN and BOD removal), limi-ting the growth of filamentousbacteria beforehand, improvingsludge settling indices, reducingthe formation of sludge (kg Msextracted/kg COD degraded), re-ducing energy consumption (kWhturbines/kg COD).such treatment avoids an increasein the input pollutant load, al-lowing the system's purifying ca-pacity to be increased.

THE PLANT

The plant being tested belongs to avegetable processing agrifood in-dustry in Northern Europe.The effluents treated by the purifi-cation plant are approx. 80% of in-dustrial origin, and specifically a-grifood type. They are purified bya treatment station using activated

sludge with extended aeration (f/mequal to 0.027 kg BOD/kgMLVss/g) in carousel-type aera-tion channel.During spring and summer, theload in the system is greater due tothe production period (processingof vegetables). A second sector,through an oxidation channel, al-lows this seasonal load increase tobe absorbed. The "weak point" ofthe purification station is the un-dersized settling tank, which re-quires a good control of sludgesettling; in fact, the creation of anew clarifier is foreseen.A theoretical undersizing of aera-tion also arises. The intake of oxy-gen, however, is optimised thanksto the syncopated operation of theaerators.The effluent input has the fol-lowing characteristics: input flowrate 179 m3/h (4,300 m3/d); COD2030 ppm, 8729 kg/d; BOD5 790ppm, 3397 kg/d; ssT 940 ppm,4042 kg/d; TKN 104 ppm, 447kg/d; Ptot 54 ppm, 232 kg/d. The plant has the following cha-racteristics: 16,000 m³ basin withactivated sludge and 5,000 m³ ofsupplementary oxidation channel;MLTss 8 g/l (average); sludgeage 8.6 days (average); f/m 0.027kg BOD/kg MLVss/g; 10 surfaceturbines; installed power: 55 kWh;theoretical daily O2 intake 9,900kg/d; theoretical O2 requirementfor pollutant load 2208 kg/d, forbiomass 8,960 kg/d, for nitrogen1,878 kg/d; theoretical O2 return

from denitrification in settling1,028.56 kg/d; secondary settlingsurface area 350 sqm; secondarysettling volume 720 m³; ascensio-nal velocity 0.51 m/h (high for ac-tivated sludge systems); theoreti-cal sludge production 1,699 kg/d;sludge extraction (as dry matter)1300 t/year.

TREATMENT APPLIED

Biological treatment was appliedthrough the association of fungiand bacteria: the cocktail of fungalstrains was injected directly intothe aerated basin; the specific bac-teria against lipids were rehydra-ted and placed in culture in thegrease receiving tank, and theninjected into the aerated basin byoverflow. The formulations used are:- Progen sA, a powder product,highly concentrated with lipolyticbacteria (4.109/g of product). Thebacteria begin the deterioration ofgrease, transformed into solublecompounds and assimilated by allof the biomass in the aerated basin- Progen FL200, a liquid fungalconcentrate, directly derived fromfermenters and injected regularlyin the activated sludge. The fungiparticipate in the biodegradationof pollution as well as the transfor-mation of nitrogen, while consu-ming much less oxygen than abacterial biomass for the samework.Along with the above-mentioneddoses of adjuvants, a gradual re-duction of the aeration thresholdswas carried out, gradually lowe-ring the level of O2 supplied. Thetreatment allows the purificationperformance to be maintained de-spite the reduction of aeration:fungi grow better in oxygen defi-ciency, whereas the bacterial bio-mass decreases its growth. This al-

lows the performance in sludge re-duction to be obtained, also redu-cing energy consumption.

PURIFICATION PERFORMANCE

The analytical study carried out bythe client's technicians showed avariable concentration of inputCOD of between 2,000 and 3,500ppm, and an average COD at di-scharge equal to 60 ppm. The ave-rage yield of COD removal duringtreatment was 97-98%.Comparing the results before andafter the treatment shows that thedischarge COD values are slightlyhigher during this phase: on avera-ge 60 ppm during the treatmentperiod, compared to 48 ppm befo-re treatment in similar seasonalperiods. The station, however, purified anadditional load, in COD concen-tration in effluent input and inflow: 10,200 kg/d on average,compared to 8,800 kg/d usual(+36% with an average deteriora-tion of the discharge parameterskept within just 12 ppm).

SLUDGE PRODUCTION AND ENERGY CONSUMPTION

still from the historical data gathe-red by the client's technicians, theaverage coefficient of biologicalsludge production is 1.27 kgss/kg BOD (removed) beforetreatment, going to 0.79 kg ss/kgBOD (removed) after 6 months oftreatment. Also, comparing thespecific sludge production ratewith previous years shows that therate obtained with the treatment isthe lowest observed and reversesthe increasing trend undergone bythe plant.The specific coefficient of electri-cal consumption per kg of pollu-tant removed before treatment ishigher than 2.3 kWh per kg ofBOD (removed); whereas, after 6months of treatment, a value of 1.7kWh per kg BOD (removed) isreached.

INNOVATIVE BIOTECHNOLOGIES

Saving by purifyingChemical and biological technologies for water and environment


1 – PREMISE

After more than thirty years of ex-perience in civil and industrialsewage treatment, sPECO®, divi-sion of WAMGROUP®, has deve-loped and tested the first treatmentplant for sludge from septic tanksincluding four phases: 1) scree-ning; 2) De-gritting; 3) De-grea-sing; 4) Compacting.For this system two highly innova-tive technologies have been intro-duced:- A ‘multiscrew’ system (POs) insiNTTM engineering polymer forscreening;- A floating screw system insiNTTM tecno polymer for remo-val of floating matter.The WAsTEMAsTER® TsB4plant is equipped with electronicand electric components (controlpanels, instantaneous visual di-splay of flow rate, acoustic and vi-sual malfunction alarm, solenoidvalves, blowers) to ensure pro-blem-free operation during bothdischarge of the waste and workcycle of the machine.Tested for more than two years ina geographical area where, for thepresence of tanneries and textilecompanies, the conditions of useare rather harsh, the WAsTEMA-sTER® TsB4 Compact TreatmentPlant is now available to custo-mers.

2 – TECHNICAL FEATURES

The WAsTEMAsTER® TsB4plant consists of a load pipe (1) th-rough which the purge truck di-scharges the sludge from the sep-tic pits.The sludge then passes throughthe multiscrew (POs) whoseperforated siNTTM engineeringpolymer trough withholds coarsesolids letting sand and liquid passinto the settling tank (2). A con-stant clearance between screensurface and screw, possible onlythanks to the polymeric siNTTMmaterial, along with the automaticwashing system, enable conti-nuous cleaning of the draining

bed, which results in highly redu-ced maintenance costs.inside the tank an air blowing sy-stem accelerates the sand sedi-mentation process (3). The sanddecants on the bottom where ascrew conveyor collects and con-veys it into a second inclinedscrew conveyor (4). The sand is u-sually collected in special contai-ners.The coarse solids are dischargedinto a screw compactor with a“swan neck” discharge (WAsTE-COM™ CLE), which reduces thevolume by more than 60%. Thecompaction phase generatesfurther draining of liquids whichare also conveyed into the settlingtank through a perforated

siNTTM tecno polymer moduleincluded in the compactor. Thescreenings form a compact blockthat falls through the discharge o-pening of the compactor (5).Oils, fats and all floating matterare picked up by the floatingsiNTTM tecno polymer screwwhich, in addition to its low powerconsumption, also boasts the ad-vantage of constantly adjusting tothe water level inside the tank.The liquid purified from coarsesolids, sand and floating matter isthen conveyed through the outlet(7) to the following phases of bio-logical and chemical purification.The standard WAsTEMAsTER®

TsB4 treatment plant has an inter-nal storage volume of pretreated

waste water of approximately 18 m3.However, the modular design ofthe tank allows even higher volu-mes, which are recommended incase of a strong presence of sand.The footprint of the standard sy-stem is approximately 14 m2.The maximum flow rate is about60 m3/h for waste water with a so-lid percentage up to 15%.The plant complies with the "Es-sential safety Requirements" asper Appendix i of the EC Directi-ve 2006/42/EC, known as the Ma-chine Directive. The plant is, in fact, fully equip-ped with protective guards and ca-sing so that treatment is carriedout in a closed structure, thus limi-ting diffusion of odours andsprays, as well as ensuring accessof the machine by the operator intotal safety.Furthermore, the plant is arrangedin such a way that every time thepurge truck is connected for di-scharge, a complete preliminary,automatic washing procedure iscarried out.

3 – CASE STUDY

ing. Fabio Caregnato from GiDA iM-PiANTi DEPURAZiONi ACQUEs.P.A. of Baciacavallo (PR), italy: “The WAsTEMAsTER® TsB4system has been tested in thesewage Treatment Plant (iDL) ofBaciacavallo in Prato, italy, ex-ploiting the Capacity Residual(CR) of purification of waste wa-ter. Generally the Capacity Resi-dual (CR) is defined as: "the diffe-rence between the maximum dailyincoming pollution load that canbe treated by the plant, to return aneffluent that meets the legal limitsfor the particular final delivery,and the average daily incomingpollution load currently treated".it was decided to evaluate the re-maining capacity of the treatmentas previously defined, referring itonly to the COD parameter andexcluding the other parameters ofconcentration from the calculation.For the calculation and the neces-sary checks the average values of

COMPACT TREATMENT PLANT FOR SLUDGE FROM SEPTIC TANKS

WASTEMASTER® TSB4


COD have been used, recordeddaily in and out from the plant inthe years 2011-2013, referring toweekdays only.The difference between the CODentering the plant – net of what ispermitted to unload within legal li-mits (125mg/l) – and the onebroken down in biological treat-ment provides the residual treat-ment capacity.The following table summarizesthe data for the two samplingpoints analysed:• flow rate of treated waste waterin m3/d;• COD concentration resultingfrom the daily analysis of the pro-cess;• incoming or outgoing flow ofCOD as a product of the two pre-vious data.summarizing the amount of CODin question in the various sectionsof the iDL are shown in the fol-lowing table.From the analysis carried out, theCOD is not a critical parameter asregards the capacity of the treat-ment plant, the limits of the regu-lations for discharge into surfacewaters being thoroughly respec-ted.At the same time, however, this isone of the main critical issues inthe purification process, since theplant is widely in deficit of carbo-naceous substrate input comparedwith the design data, as summari-zed in the following table.in 2013 we decided to evaluate thecontribution of the treatment ofseptic tank sludge in percentageterms on consumption of energy,chemicals, as well as the disposalof sludge and sand.The evaluation was carried out ina way that we believe to be widelycautionary, applying the percenta-ge of incidence of the treatment ofseptic tank sludge on the pollutionload (approximately 6%) directlyon the costs of electricity and che-micals, while we applied a conver-sion formula of production ofsludge from the pollution loadfrom septic tanks, to better evalua-te the percentage of its treatment(approx. 2% of the costs of sludgetreatment). The evaluation was conducted o-ver a period of time ranging fromMarch to December 31st, 2014during which approximately 4,700tons of septic tank sludge weretreated, with a maximum (718 ton)

reached in October. With theseconditions we achieved a unit costof treatment that is less than ap-proximately 40% of the pricecharged to customers, excluding,therefore, the contribution of fixedcosts, especially related to the co-

sts of personnel and maintenance.Regarding the evaluation of varia-ble costs we want to emphasizehow the unit cost of treatment is,however, an approximate valuesusceptible to future investigation.it is clear that the evaluation of da-

ta follows from considerations oftechnical-economic nature basedon an analytical comparison withthe operating costs of a typical wa-ste water treatment plant of largedimensions such as that of Bacia-cavallo in Prato. This plant has peculiar characteri-stics of plant engineering naturesuch as the biological oxidationprocess with an oxygenation sy-stem, consisting of surface turbi-nes installed for several years anda methane incineration system e-nabling almost complete auto-nomy in the treatment and dispo-sal of sludge.These characteristics play a decisi-ve role in the evaluation of costsand, in particular, in the calcula-tion of the unit costs of treatmentof septic tank sludge. it is, therefo-re, a clear need to adapt the analy-sis of the components of the unitcosts to different plant contexts inwhich we imagine the machine tobe included.As regards the direct costs of ma-chine management, electricity andwater, at this moment they havenot yet been evaluated.For the fixed costs and, in particu-lar, those related to personnel, thehigh degree of automation of themachine allows to consider negli-gible, at the time, costs of person-nel dedicated to monitoring andcontrol of the machine.On the other hand, personnel costshave to be considered for monito-ring and management of waste re-ception, including checking ofshipping documents, weight andentry of data in the companysoftware. Again it is necessary to assess theminimum number of daily entriesthat would justify the provision ofspecifically dedicated staff. insummary, the experiments on anindustrial scale confirm the effec-tiveness of the steps of pre-treat-ment of liquid waste from septictanks performed by the compactWAsTEMAsTER® TsB4 plantdesigned and built by the sPECO®

division of WAMGROUP®. The comparison between costsand revenues of operation, whichis still in the experimental stage,leaves highly interesting possibili-ties of application of this compactpretreatment system upstream ofsewage treatment plants with ap-propriate sections of biologicaltreatment of waste water”.

WAMGRouP SpaVia Cavour, 338 I - 41030 Ponte Motta di Cavezzo (Mo)

Tel.: +39 0535 61 81 11 - Fax: +39 0535 61 82 26

Web: www.speco.it - Email: [email protected]

www.hitechambiente.com

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