AD

88

Fifth international Symposiumon

Anaerobic DigestionBologna, Italy, 22-26 May 1988

POSTER-PAPERSEdited by

A. TILCHE & A. ROZZI

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WWII/ WWI/ V«f/

Alma Mater StudiorumSsecularia Nona

HANNOVER

MONDUZZI EDITORE

INDEX

Section 1ANAEROBIC DIGESTION FUNDAMENTALS

1.1. MICROBIOLOGY AND BIOCHEMISTRY

1. M. BECCARI, G. DI GIORGIO, L. CAMPANELLA,M. MAJONE and E. ROLLEAcidogenic fermentation of wastes from food industries 3

2. B. BIAVATI, E. ERCOLI and B. SGORBATIPlasmidograms in methanogenic bacteria 7

3. N. BONASTRE and J.M. PARISColonisation and stimulation/inhibition properties of different supports usedin anaerobic fixed-film reactors 11

4. K. BUCHHOLZ, E. STOPPOK and R. EMMERICHKinetics of anaerobic hydrolysis of solid materials 15

5. J. BUISMAN, B. WIT and G. LETTINGAA new biotechnological process for sulphide removal with sulphur production

19

6. J. CAIRO, J.M. PARIS, M. BARDULET and R. TELLOPreliminary studies on microbiological and biochemical characterization ofmethanogenic bacteria from an anaerobic filter working at low temperature 23

7. M. CLARENS, R. MOLETTA and M.L. DALMEYDAThe influence of physico-chemical parameters on acetate fermentation byMethanosarcina MST Al 27

8. J. DOLFINGHydrogen-based interactions in syntrophic propionate degrading microbialconsortia 31

9. G. FAUQUE, S.B. WOO, Y. BERLIER, P.A. LESPINAT,H.D. PECK Jr. and J. LE GALLPurification, characterization and catalytic properties of hydrogenases fromMethanococcus voltae and from a thermophilic species of Methanosarcina 35

10. G.H. FYNN and M. IBBAThe colonisation pattern and kinetics of an enriched acidogenic culture immo-bilized on reticulated foam biomass support particles 39

11. R.F. HICKEY and M.S. SWITZENBAUMThe role of intermediate and product gases as regulators and indicators ofanaerobic digestion 43

12. J.M. LEMA, C. CASAS, A. AGUILAR and J. LAFUENTEOn the isomerization between n-butyrate and i-butyrate 49

13. LIAN LIWEN, YAO RONG, ZHANG HUI, XU YUANSHENG,QIAN YIBO and ZHAO YIZHANGStudies on «M.V» hydrogenase activity of methanobacteria 53

14. R.F.V. NOVAES, CM. RECH, M.G. FIGUEIREDO andL.A. GIAJ-LEVRAbacterial identification of granular sludge from domestic sewage UASB-reactor 61

15. S.P. PETERSEN and B.K. AHRINGSulfate reduction rates in a thermophilic anaerobic sewage sludge digester 65

16. A.I. QATIBI and A. BORIESGlycerol fermentation and sulfate utilization during the anaerobic digestionprocess 69

17. D.P. SMITH and P.L. McCARTYHydrogen partial pressure: effect on methanogenesis of ethanol andpropiona-te in a perturbed CSTR 75

18. M. K. THEODOROU, A.C. LONGLAND, S.E. LOWE andA.P.T. TRINCIDigestion of plant cell walls by an anaerobic rumen fungus 81

19. J.L. THOLOZAN, E. SAMAIN, J.P. GRIVET and G. ALBAGNACAcetogenesis pathways from propionate in enrichment culture 85

20. M. TRETTER, A. AIVASIDIS and C. WANDREYInvestigation on modelling of anaerobic decomposition of acetic acid bymeans of Methanosarcina barken under steady and transient conditions . 91

21. J. WEBB and M.K. THEODOROUSubstrate colonisation by a rumen anaerobic fungus 95

1.2. ENVIRONMENTAL FACTORS

1. O. ADEBOWALE and R. KIFFOperational trends in UASB reactor bed stability and during initiation ofgranulation 99

2. M.C. DIAZ-BAEZA study of factors affecting attachment in the startup and operation of anaero-bic fluidized bed reactors 105

3. C. DOSORETZ and U. MARCHAIMMethanogenic activity in hypersaline environments 109

4. R. FARINA, R. BOOPATHY, A. HARTMANN and A. TILCHEAmmonia stress during thermophilic digestion of raw laying hen wastes . I l l

5. J.T.C. GROTENHUIS, J. VAN LIER, C M . PLUGGE andA.J.M. STAMSEffect of calcium removal on size and strength of methanogenic granules . 117

6. S.R. GUIOT, A. PAUSS, D. BOURQUE, M. EL HOUSSEINI,L. LAVOIE, C. BEAULIEU and R. SAMSONEffect of upflow liquid velocity on granule size distribution in an upflowanaerobic bed-filter (UBF) reactor 121

7. H.V. HENDRIKSEN and B.K. AHRINGAnaerobic degradation of lactic acid containing waste water with differentconcentrations of ammonia 125

8. G.M. MAESTROJUAN and J.A. FIESTASA study of the behaviour of anaerobic bacteria in the presence of diversematerials usable as support 129

9. F.A. NASR and H.I. ABDEL SHAFYThe toxicity of heavy metal ions on anaerobic digestion 133

10. P.H. NIELSEN and N. IVERSENDiffusional limitation of sulfate reduction in fixed-film reactors during anaero-bic digestion 139

11. R. MULLER and A. STEINERInfluence of nickel and copper on anaerobic sludge digestion 141

12. ZHANG SHIWEI, XIANG CHANGJIN, YU DENGSHOU,WANG HANGMING and XU LUOJIEStudies on the effect of zinc sulfate on gasproduction and its mechanism inbiogas fermentation 145

13. J. ZUBRMethanogenic fermentation at variable temperature 153

Section 2PROCESS ASPECTS OF ANAEROBIC DIGESTION

2.1. MODELLING, PROCESS CONTROL, START UP AND SENSORS

1. B.K. BALA and M.A. SATTERSystem dynamics simulation of biogas production systems 161

2. M. BARDULET, J. CAIRO, R. TELLO and J.M. PARiSAcclimatisation and startup of conventional digesters treating several waste-waters at 20 "C 169

3. A. BASSOLI, F. CHIOCCARA, G. DI GREGORIO, B. RINDONE,S. TOLLARI and V. BALICEMolecular monitoring of olive oil mill wastewater by chromatographic andmass spectrometric methods 173

4. F. CONCANNON, P.J. REYNOLDS, A. HENNIGAN andE. COLLERANDevelopment of a computerized continuous assay for specific methanogenicactivity measurement 177

5. K. HANAKI and S. HIRUNMASUWANStart-up of UASB and anaerobic filter treating synthetic wastewater in am-bient temperature . . . - . ' 183

6. HUANG KUI and LI JIANStudy on the process of biogas fermentation with start of full crop-stock . 187

7. R.M. JONES, E.R. HALL and K.L. MURPHYOn-line estimation of process variables for operation and control in high rateanaerobic wastewater treatment 191

8. H.T. KARLSSON and B.K. NILSSONOn the modeling of fixed film reactors 195

9. KEYIHUAThe identification of the dynamic model of anaerobic digestion process in anUASB reactor 199

10. P. KEIM, H.-J. BRANDT, A. AIVASIDIS and C. WANDREYProcess control in anaerobic fluidized bed reactors using porous glass granulesfor microbial colonization 203

11. J .C KISSEL, J.T.C GROTENHUIS and A.J.B. ZEHNDERComputer simulation of granule growth in an upflow anaerobic sludge blan-ket reactor (UASBR) 207

12. J.P. LESCURE, B. DELANNOY, D. VERRIER and G. ALBAGNACConsequences of a thermal accident on the microbial activity of an industrialanaerobic filter 211

13. L. MORVAI, L. CZAKO and P. MIHALTZModelling the behaviour of high acid containing wastewater during neutraliza-tion 215

14. F.E. MOSEY and X.A. FERNANDESMonitoring hydrogen in biogas during the anaerobic digestion of sugars . 219

15. A. PAUSS, S. GUIOT and R. SAMSONSensors for anaerobic digestion management 223

16. G. RECZEY, I. TAKACS and J. MOLNARKinetic model for the anaerobic wastewater treatment 227

17. R. SAMSON, S. GUIOT, A. BEAUBIEN and C. JOLICOEUROn-line sensor technology in anaerobic digestion 231

18. W. SMORAGIEWICZ, A. BOUTARD and C. DE MONTIGNYThe «SVC» method of chemical fractional analysis of organic matter . . 235

19. R.E. ST. JEAN and A.R. STICKNEYA mobile three reactor microprocessor controlled anaerobic pilot plant facilityfor on-site treatability studies 239

20. M.A. THEOLEYRE and A. MLAOUHIUsing a chemical tracer to determine the real retention time of a digestor 243

21. V. VAN BREUSEGEM, G. BASTIN and A. ROZZIFeedback control of anaerobic digestion processes through adaptive bicarbona-te regulation 247

2.2. REACTOR AND PROCESS DESIGN

1. G.K. ANDERSON, C.B. SAW, T.H.Y. TEBBUTT, C.F. FORSTER,D.L. HAWKES, J.N. LESTER and A.D. WHEATLEYDesign of the SERC anaerobic digestion pilot plant facility 251

2. C.F. FORSTERUnited Kingdom anaerobic digestion facility

3. FU SANG-ZHI and WANG XI-CHUNStudy on increasing biogas production rate of biogas digester in cold regionsof china

4. A. GARCfA-BUENDIA and R. FERNANDEZDevelopment and evaluation of biofilters with oriented support - B.S. O. - byENADIMSA

5. A. GROBICKI and D.C. STUCKEYPerformance of the anaerobic baffled reactor

6. S. HALL, A. THOMAS, F. HAWKES and D. HAWKESOperation of linked percolating packed bed anaerobic digesters . . . .

7 . S . J . H A S H E M I A N a n d A . J A M E SBiomass retention in high-rate anaerobic reactors

8. CJ. HONGEffect of multi-hole bioplate in anaerobic digestion system

9. H.-J. JORDENING, A. PELLEGRINI and K. BUCHHOLZFluidized bed reactors for purification of waste water with high calciumcontent

10. KJ. KENNEDY, S.S. GORUR, CA. ELLIOT,E. ANDRAS and S.R. GUIOTEffect of oriented media on solids retention in upflow-sludge-blanket-filter(UBF) reactors

11. LIU MINGGANG and FANG ZHIHUAFuzzy optimization for structure of an UASB reactor

12. W. NEUMANN and H. RUCKAUFModeling and scale-up of biogas reactors : . .

13. D.R. PANDE and V. VAIDYAThe heat load of a biogas plant

14. J. RESTREPOMultiple stage anaerobic composite system

15. M. RINGKAMP, W. TENTSCHER and H. SCHILLERPreliminary results on: statical optimization of family-sized fixed-dome dige-sters

16. HANG-SIK SHIN and SAE-EUN OHGAC effects on UASB reactor operation

17. C. SORLINI, G. RANALLI, S. MERLO and P. BALSARIPreliminary research on support matrices to utilize in anaerobic expanded beddigesters

18. K. SVARDAL and H. KROIBNeutralisation in anaerobic waste water treatment

19. M.A. THEOLEYRE and A. MLAOUHIOptimisation of the retention time of a large scale, fully mixed digestor .

20. P. WEILAND and L. BUTTGENBACHStudy of different fluidized bed reactors using porous plastic materials assupports

21. M. WINTHER-NIELSEN and B.K. AHRINGExperiences from start-up of a thermophilic UASB-reactor on lactate as solecarbon and energy source 351

22. YANG XIUSHAN, G. GARUTI, R. FARINA, V. PARISI andA. TILCHEProcess differences between a sludge bed filter and an anaerobic baffledreactor treating soluble .wastes 355

2.3. FARM WASTES TREATMENT

1. D. BELLAMY, B.I. WHEATLEY, A. BASSEL, I. GHAZIand H. GAMAL EL DINNitrogen and ash as limiting factors in the digestion of cattle manure in theEgyptian delta under mesophilic and thermophilic conditions 361

2. M. BIGERIEGO, J.A. MUNOZ VALERO andM.V. CARBONELL PADRINOAnaerobic treatment of agricultural refuses 365

3. L. CAMARERO, C. URBANO, J.M. MERINO, A. ELIAS,F. ROMERO and J.M. DIAZSedimentation as final treatment of the anaerobic digestion of pig wastes 371

4. J.M. CHAPMAN, D.L. HAWKES and B.F. PAINPerformance studies of pilot scale inclined tubular digesters operating oncattle slurry 375

5. W.C. CHEN, J.C LIN and R.Y. CHENLaboratory study of thermophilic anaerobic digestion for swine manure . 379

6. D. DEBROAS, S. DURECU, C FESTINO, C. AUBART andO. REISINGERLytic process studies on anaerobic digestion of organic wastes: plant fibersdegradation in pig manure 383

7. J.L. GARCIA-HERAS and L. SANCHOTreatment of piggery wastes by lagoons at a full scale plant 389

8. K. HARMAA, I. VIITASALO and P. VAANANENAnaerobic treatment of fur ranch wastes 397

9. I.P. MARQUES, P.M. PEREIRA and J.M. NOVAISPig slurry anaerobic digestion in fixed bed reactor 401

10. D.R. PANDE, F. DE POLI and A. TILCHESome aspects of horizontal design biogas plant 405

11. M.W. PECK, F.R. HAWKES and D.L. HAWKESParticle size distribution in cattle slurry: composition and digestibility ofdifferent sized fractions 411

12. J. RIERADEVALL, C. ALBAJAR, V. DIEGO, M.J. ANGLADA,A. MITJA, J. ESCOBAR and J. ESTEVEFollow-up study of anaerobic digestion plants in Catalonia (Spain). Treat-ment of pig manure. Energy and depuration balance 415

13. W. TENTSCHERExperience with a full-scale plug-flow digester with a RMP-film as gasholder 419

14. C. URBANO, L. CAMARERO, J.M. MERINO, A. ELIAS,F. ROMERO and J.M. DIAZEnergy production and COD removal of pig wastes in D.S.F.F. and CM.reactors

15. W. WEN and S. CHENDevelopment of small biogas digester in rural areas

2.4. FOOD INDUSTRY WASTEWATER TREATMENT

1. G.P. ADAMS and D.M. PRAIRIEMonitoring and optimization program for a completely mixed full-scale anae-robic digester at a Canadian cheeseplant

2. A. AIVASIDIS, E. HILLA and C. WANDREYSingle- and separated-phase anaerobic treatment of distillery slops in fixedbed loop reactors

3. V. ANDREONI, D. DAFFONCHIO, A. MORELLI,C SORLINI and M. VILLAMicrobiological and gaschromatography-mass spectrometry monitoring of theanaerobic treatment of oil mill effluents in up-flow digesters

4. G. BEYEN, R. KRUITWAGEN and L. VRIENSExperience with a pilot-scale two-stage anaerobic unitank system (TSU-AN-system on brewery wastewater at lower temperatures

5. R. BOOPATHYEffect of pre-treatment on anaerobic digestion of coffee waste

6. R. BOOPATHY and V.F. LARSENAcid and alkali pre-treatment of distillery waste for anaerobic digestion .

7. G. BORTONE and S. PICCININIA full scale upflow anaerobic filter treating pea, maize and green pea proces-sing wastes

8. A.M. BREURE and J.G. VAN ANDELAnaerobic purification of proteineous waste water

9. J.F. CALZADA, J. VALLADARES, C ROLZ and J. ZABALAAnaerobic digestion in the integrated utilization of banana wastes . . .

10. C. CAMILLERIAnaerobic digestion of food processing wastewater: industrial performance offixed-film technologies for methane recovery and pollution abatement . .

11. A. CAROZZIAnaerobic treatment of fish processing wastewater

12. C. CARRIERI and V. BALICEAnaerobic treatment of olive mill effluents and sewage sludge in conventionaldigesters

13. SUMAETH CHAVADEJTwo-stage anaerobic process for biogas production and organic removal .

14. J.N. CLARKAnaerobic digestion of whey in a pilot-scale upflow anaerobic sludge blanketdigester

15. W.A. ENGER, P.R. DE RAM, A. CIGNOLI and G. GATTIApplication of the biothane reactor for anaerobic treatment of distillate fromalcohol and yeast production 495

16. R. FERRARA and E. VICENZINOAnaerobic digestion of whey using a downflow fixed bed filter reactor. Trendof the process at different temperatures 499

17. FU SHANGZHI, HE DEMING, ZHANG LIKE and LI YUYINGStudies on the production of biogas from sugar beet residues and sugar milleffluents 505

18. G. GARAVINI, L. MERCURIALI, A. TILCHE and YANG XIUSHANPerformance characteristics of a thermophilic full scale hybrid reactor treatingdistillery slops 509

19. G. GARUTI, G. BORTONE, C FAGNOCCHI, S. PICCININI andA. TILCHEFull scale mesophilic sludge bed anaerobic filters treating distillery slops . 517

20. S. GONZALEZ-MARTINEZ and C MARMOLEJO-RIVASAnaerobic digestion of the wastewaters from the alkaline cooking of maize 523

21. P.J.F.M. HACK, T.L.F.M. VEREIJKEN and E. CACCIARIBiopaq® treating brewery effluent 527

22. HE CHENQINGA study of the conditions of beet residue fermentation to produce biogas 531

23. HONG YUCAI, GATZE LETTINGA and H. WILLERSUse of the modified UASB for the anaerobic treatment of from beet sugarmolasses 533

24. E. KILLILEA and E. COLLERANComparison of fixed-bed and hybrid fixed-bed/sludge-bed reactors for anaero-bic digestion of cheese whey 541

25. J.M. LEMA, M. SOTO, R. MENDEZ and R. BLAZQUEZComparison of mesophilic and thermophilic anaerobic filters treating veryhigh saline wastewaters 547

26. AMIR HOSSEIN MAHVI and ALIREZA MESDAGHINIAThe use of anaerobic filter in domestic sewage and slaughter house wastes 551

27. U. MARCHAIMThermophilic anaerobic digestion system for slaughter-house wastes: an eco-nomical and ecological solution 555

28. J.M. PARIS, T. VICENT, M.D. BALAGUER and C. CASSUComparison of start-up and performance of anaerobic filter and UASB reac-tors treating potato-starch wastewater 557

29. S. RIGONI-STERN, R. RISMONDO, L. SZPYRKOWICZ andF. ZILIO.GRANDIAnaerobic digestion of vegetation waters from olive oil mills on a fixedbiological bed with a biogas production . . 561

30. F. ROGALLA, F. ROY, G. DESBOS and M.M. BOURBIGOTUpflow anaerobic sludge blanket (UASB) and integrated tilted plate settler:applications on difficult industrial effluents 567

31. W.R. ROSS, H.A. DE VILLIERS, J. LE ROUX and J.P. BARNARDSludge separation techniques in the anaerobic digestion of wine distillerywaste 571

32. D. SALES, L.I. ROMERO, M.J. VALCARCEL, L. PEREZand E. MARTINEZ DE LA OSSAThermophilic and mesophilic anaerobic digestion of wine-distillery wastewa-ters 575

33. J.P. SCHWITZGUEBEL and P. PERINGERBiogas production from cheese whey in a two-stage plant 579

34. R.E. ST. JEAN and A.R. STICKNEYOn-site anaerobic treatment of combined pea and potato processing wastewa-ters using a mobile microprocessor controlled, three reactor pilot plant facility 583

35. M. TANTICHAROEN. M. REUNGYITCHAWALY,V. LOHA..S. BHUMIRATANA andS. LERTTRILUCKBiogas production from tapioca starch wastewater factory 587

36. U. TEMPER, R. MULLER and G. METZNERAnaerobic digestion of rendering waste water 591

37. H. TIMUR, E.l. GONENC and A.M. TIMURAnaerobic treatment of raki distillation wastewater in fixed-bed reactor . 595

38. W. TROSCH and H. CHMIELTwo-stage thermophilic anaerobic digestion of potato waste-water. Experien-ce with laboratory, pilot-scale and full-scale plants 599

39. K. VAN ROMPU, S. GRUSENMEYER and W. VERSTRAETEPolyurethane carrier reactor to treat wastewaters from a starch, modifiedstarches and syrups factory 603

40. M. VINAS, M.C. ESPINOSA, M.E. COHEN, C. LOPEZ,J. ALVAREZ and R.M. GUERRAAnaerobic treatment of coffee waste water using UASB reactor . . . . 6 0 7

4 1 . D . W . W I L L I A M S a n d J . M O N T E C A L V OAnaerobic digestion of vegetable wastes 613

42. J. WINTER, G. ZELLNER and P. VOGELComparison of anaerobic whey and whey permeate treatment by immobilizedand suspended methanogenic consortia 617

43. XU XUE-YING, FANG XIAO-HUA, ZUO ZHENG,WANG ZU-XUAN and CHEN ZE-PENGExperimental study on anaerobic-aerobic treatment of wastewater from Ra-mee degelatinization 619

2.5. NON-FOOD INDUSTRY WASTEWATER TREATMENT

1. J.P. BARFORDThe role of anaerobic digestion in the treatment of oil refinery wastes . 623

2. A.J.M.L. BORGHANS and A. VAN DRIELApplication of the Biothane® UASB reactor to a chemical waste water,containing phenol and formaldehyde 627

3. E. CACCIARI, D. PESCI, P.J.F.M. HACK andL.H.A. HABETSFirst Biopaq® plant i n Italy treating recycled papermill effluent . . . . 6 3 1

4 . E . C H A V E , J . L . F U E N T E S a n d G . G O M AAnaerobic treatment of spent sulphite liquors 635

5. ZHONG-YU CHEN, YI-JUN LI and DONG-YU LIUStudy on anaerobic treatment of lime semi-chemical pulp black liquors frompaper industry 639

6. K.G. GOLLAKOTA and K.K. MEHERBiogas production from deoiled castor cake at elevated temperatures . . 643

7. P.J.F.M. HACK, IR. L.H.A. HABETS and E. CACCIARIBiopaq® treating papermill effluent 647

8. R. HUSTER and C.H. MOBIUSAnaerobic treatment of special paper mill effluents 651

9. Z. ISA, R.M. SUBBIAH and J.P. OMBREGTAnaerobic digestion of rubber factory effluent by Biotim ® A system: start-up experiences 657

10. R. KASTURI BAI and S. RAMESH SIVATHANUAnaerobic treatment of tannery effluents. A possibility for methane recoveryand organic matter removal 661

11. S. KOZIARSKI and M. KORCZAKStudies and research on anaerobic treatment of sulfite pulping wastes . . 667

12. A. PANDEY, S.V. RAMAKRISHNA and G.D. SURENDERAnaerobic digestion of natural rubber waste effluent 669

13. M. PICHON, J. ROUGER and E. JUNETAnaerobic treatment of pulp and paper effluents with high sulphur content 673

14. J. PUHAKKA, M. ALAVAKERI, K. HARMAA and P. VILPPUNENA pilot scale study on anaerobic treatment of kraft mill wastewater sludges Gil

15. J. RINTALA, T. TUHKANEN, P. VUORIRANTA,P. KALLIOKOSKI and P. JOUTSENOJAVolatile fatty acids in anaerobic-aerobic treatment of forest industry effluents 681

16. P. VOGEL and J. WINTERAnaerobic degradation of different wastewater streams from a sulphite pulpmill 685

17. P. VOGEL and J. WINTERAnaerobic degradation of phenol and cresol in petrochemical wastewater . 689

18. P. VOGEL and J. WINTERAnaerobic digestion of wastewater from a paper mill in expanded and fluidi-zed bed reactors 695

2.6. MUNICIPAL SEWAGE SLUDGE TREATMENT

1. W. DEMHARTER and W. PFEIFFERSewage sludge digestion and disinfection. A comparison of mesophilic andthermophilic processes 699

2. A.D. LEVINE, D.P. SMITH and W.A. WEISSTransformation of particulate COD in pretreatment and methanogenesis ofprimary sludge 703

3. W. SMORAGIEWICZ, A. BOUTARD and C. DE MONTIGNYThe measure of efficiency in methane fermentation biodegrability of wastewater sludge 709

4. I. VIITASALO and T. RIIHELAINENWhen is municipal sludge well stabilized? 713

5. ZHAO XIHUI, ZENG HUALIANG, HE RONGJUN,TIAN HONGCHUN, XU JIANQING and ZHAO PINGUpflow anaerobic digester and its sanitary effectiveness in treating superna-tant of municipal night soil 717

2.7. MUNICIPAL WASTEWATER TREATMENT

1. D. BELLAMY, B.I. WHEATLEY, A. BASSEL, I. GHAZIand GAMAL EL DINAn evaluation of the use of anaerobic digestion on a sewage works in Egypt 721

2. J.J. BOGTE, J.G. VAN ANDEL and A.M. BREUREApplication of small UASB reactors for treatment of domestic waste water ofindividual households at isolated locations 725

3. CHANG KUO-CHENGA study on the process and apparatus of anaerobic digesting treatment forurban liquid faeces of man (ULFM) 731

4. A.W.A. DE MAN, G.B.J. RIJS, G. LETTINGAand W. VAN STARKENBURGAnaerobic treatment of sewage using a granular sludge bed UASB-reactor 735

5. LAI YAO-FU, ZHAO XI-HUI, GU YUN-XIAN, ZENG HUA-LIANG,XU JIANG-QIANG, HE WAN-NING and SHONG DE-SHENThe new biogas septic tank 739

6. LEI JIAN-GUOThe effect of excreta and sewage treatment by the round-multipole anaerobicdigester 743

7. O. MONROY, A. NOYOLA, F. RAMIREZ and J.P. GUYOTAnaerobic digestion and water hyacinth as a highly efficient treatment pro-cess for developing countries 747

8. R. MYLES, A. DHUSSA and Y. SINGHPilot project for «biological treatment» of rural domestic waste water invillage Bisru, Haryana, India 753

9. A. OROZCOAnaerobic wastewater treatment using an open plug flow baffled reactor atlow temperature 759

10. I. SANZ, J.M. IZA and F. FDZ-POLANCOPerformance and comparative start-up of anaerobic fluidized bed reactorswhich treat domestic sewage at low temperatures 763

11. ARIS SCHELLINKHOUT, FRITS F.G.M. JAKMA andG.E. FOREROSewage treatment: the anaerobic way is advancing in Colombia . . . . 7 6 7

1 2 . G . U R B I N I , C . C O L L I V I G N A R E L L I , A . F A R N E T I ,A . B A S S E T T I a n d U . B A R B A R E S IPilot experimentation of advanced biotechnology for anaerobic-aerobic treat-ment of domestic wastewater 771

13. K. VAN ROMPU and W. VERSTRAETEThe polyurethane parallel plate separator 777

14. A.F.M. VAN VELSEN and L.R. WILDSCHUTAnaerobic treatment of domestic sewage 781

15. ZHANG SHIWEI. XIANG CHANGJIN, YU DENGSHOU,WANG HANMING and XU LUOJIEMethane production of domestic wastes by anaerobic fermentation . . . 785

2.8. SOLID WASTES TREATMENT

1. O. BEGOUEN, E. THIEBAUT, A. PAVIA and J.P. PEILLEXThermophilic anaerobic digestion of municipal solid wastes by the Valorgaprocess 789

2. W. SIX and L. DE BAEREDry anaerobic composting of various organic wastes 793

3. E. STOPPOK, U. BARZ and K. BUCHHOLZInvestigations and scale up of anaerobic fermentations of solid beet waste 799

4. R. TORRES-CASTILLO and J. MATA-ALVAREZLeachate recirculation flow rate effects on a two phase digestion process . 803

5. A. MTZ. VITURTIA, J. MATA-ALVAREZ, F. CECCHI andP.G. TRAVERSODescription of a two-phase fermentation system for the anaerobic digestion ofmunicipal organic wastes 809

6. WAN BO, LIAO YINZHANG, LI ANMING and LIU KEXINGrowth patterns of various physiologic groups of microorganisms during drydigestion of MSW 813

7. LA. WATSON-CRAIK and E. SENIORCo-disposal comes of age 819

8. ZOU YUANLIANG and ZHAO ZHONGJIUStudy on essential parameters of biogas solid fermentation 823

tSection 3ANAEROBIC TREATMENT OFRECALCITRANT COMPOUNDS

1. K.-H. BLOTEVOGEL and S. JANNSENThe influence of common feed antibiotics on methane fermentation . . 829

2. L. CZAKO, P. MIHALTZ and L. MORVAIBiological sulfate removal in the acidic phase of anaerobic digestion . . 833

3. J. DOLFING and J.M. TIEDJEMicrobial degradation of chlorinated aromatic compounds: the anaerobicoption 839

4. C. EGLI, R. SCHOLTZ, T. TSCHAN, M. THUER,A.M. COOK and T. LEISINGERComplete anaerobic degradation of tetrachloromethane, monochloroacetateand dichloroacetate 843

5. C. HOLLIGER, G. SCHRAA, A.J.M. STAMS and A.J.B. ZEHNDERAnaerobic reductive dechlorination of chlorinated benzenes 847

6. S. PEIFFER and K. PECHERMonitoring anaerobic digestion processes of domestic waste and their relationto the dynamic behavior of environmental pollutants 851

7. M.A. RODENAS and M.E. SOUZAInfluence of toxic compounds on anaerobic digestion of sludge . . . . 8 5 7

8 . W E N S H I - D I N G , Z H A N G M I N , D E N G Y U , Y A N X I O U - Q I N G ,W A N G T O N G a n d H A N X I N G - Y O UStudy on the treatment of biochemical pharmacy wastewater by up-flowanaerobic filter and aerobic filter 861

9. P. YU and T. WELANDERAnaerobic toxicity of kraft bleach effluent 865

Section 4TREATMENT OF ANAEROBIC EFFLUENTS

1. C FABIANI, L. BIMBI, L. TRANCHINO and R. SANTAROSSABiogas purification by membrane permeation 871

2. T.M.T. GASI, C.E.M. PACHECO, L.A.V. AMARAL andS.M.M. VIEIRARemoval of pathogenic micro-organisms from UASB reactor effluent by chlori-nation 875

3. D.R. PANDE and C. FABIANIThe use of zeolites for enrichment of methane from biogas 879

4. I. SANZ and F. FDZ-POLANCOPost-treatment of domestic sewage anaerobically treated . . . . ' . . . 8 8 3

5 . E . S A R N E RThe ANTRIC filter - a novel process for sulphur removal and recovery . 889

6. LAM MINH TRIET, J.C.L. VAN BUUREN andNGUYEN TRUNG VIETComparison of algae and waterhyacinth in wastewater treatment in Viet-nam 893

Section 5ANAEROBIC DIGESTION FOR RESOURCE RECOVERY

1. D. BELLAMY and B.I. WHEATLEYNettles (Urtica Dioica) as a potential energy crop in an agroforestry systemcentred on anaerobic digestion 899

2. G.L. BRAGADIN and M. MANCINIAn integrated system to improve water quality of effluents from civil treat-ment plants in adriatic coastal area, based on growth, harvest and anaerobicdigestion of microalgae 903

3. CAO GUO QUIANChinese rural household biogas digester patterns and discussion . . . . 9 0 7

4 . D . C H Y N O W E T H a n d D . J E R G E REnergy production from the methane fermentation of hardwoods . . . . 9 1 3

5. K. HARMAA, P. VAANANEN, P. VILPPUNEN,M. ALAVAKERI and J. PUHAKKAAnaerobic energy unit for treatment of industrial sludge 917

6. JI FANGXING and XU YIZHONGThe use of the anaerobic fermentation treatment in breeding 919

7. LIU YINGStudies on the technique of growing rice seedlings with biogas and its applica-tion 923

8. SHAVA PATRABANSHBiogas from Populus deltoides 927

9. J. PEKRIER, F. JACOB and J.P. PEILLEXProduction of high quality organic fertilizer by anaerobic digestion and com-posting 933

10. REI-ZHI SHEN, HUI-FANG ZHU ZHI-JIN SHEN andPING-HONG CHENGStudy on the application of the technology of AFP and AES with anaerobicfermented residua to prevent barley yellow mosaic virus 937

11. A. SINGH, G. GIRIDHAR, M. MADAN and P. VASUDEVANAnaerobic digestion: an appropriate process for integrated utilization of bio-mass from non-conventional sources 943

12. R.E. ST. JEAN and KJ. THOMSONAnaerobic digestion/co-generation at a 200 head dairy farm 947

13. TANG WENXIUFactors that influence net energy output of meso-temperature anaerobic dige-sting plants 951

14. S.K. VYAS, N.S. SANDHAR, A. SINGH, R.K. GUPTA andU. JINDALGeneration of energy through anaerobic digestion. Experience of full scaleplant at Hambran, Punjab 957

15. D.L. WISEBiogasification of fossil fuels 961

Section 6SURVEYS AND ECONOMICAL EVALUATIONS

1. F. DE POLI, M. GAMBONI and S. PASQUALINIENEA organic wastes project 967

2. P. KELLEROperating results from biogas plants 971

3. C. MORENO and N. CARRERASSpanish program of biogas 975

4. E. NEVES FERNANDES and L. SILVA CAMPOSAccess to a database in AD applied technology 979

5. D.M. PRAIRIE, A. RAY STICKNEY and J.A. BARCLAYCanadian anaerobic digestion technology computerized database and confe-rencing system 981

6. L. SILVA CAMPOS and E. NEVES FERNANDESAnaerobic digestion and waste treatment in Portugal 985

7. SONG DE-SHENG and DENG XIU-SHANInquisition of biogas development countermeasure 987

8. A,N. TRANA biogas digester 991

9. M.A. VEIT, J.V. CONSOLANO, M. CONSOLNOGAS andR.F. WARDCost benefit analysis of landfill gas utilization in developing countries . . 997

10. XUJUYINGEvaluation on biomass resource and the possibility of developing biogas inUganda 1001

11. ZHANG RONGLINThe rationality and economy of centralized biogas supply system . . . . 1 0 0 5

EXTENSION OF THE PROCEEDINGS

H. HARADA, G. ENDO, Y. TOHYA and K. MOMONOIHigh rate performance and its related characteristics of granulated sludges inUASB reactors treating various wastewaters 1011

S. KIMCHIE, R.E. LUMBROSO, Z. GELLER,D. ABRAMOVITCH and G. SHELEFAn integrative treatment process for piggery wastes based on anaerobic dige-stion 1021