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NEWGENERATIONMEMBRANESclean waterfor life
CEMBRANEintroduction:• Manufacture Silicon Carbide (SiC) Ceramic MF/UF membranes
• Production facility in Denmark
• Sell to OEM/Integrated Solutions providers
• Patented membrane technology
“We produce and develop a new generation SiC ceramic membrane from our facility in Denmark. We provide OEMs & System integrators in more than 20 countries with a unique outside-in flat sheet membrane and module to treat challenging drinking- and waste waters”
FIELDS OFapplication:Our SiC flat sheet membranes are being deployed in a wide variety of applications:
MBR• Food & Beverage
• Pharma
• Textile
• Sewage & sludge thickening
• Household
MBR in food & beveragePre-RO >100 LMH gross flux
Drinking water installation in Sweden 575 LMH peak flux
Produced water installation in US
Containerized solution for drinking water, with flux 500 LMH
INDUSTRIAL WASTE WATER REUSE• Mining - Heavy metal removal
• Semiconductor (OVIVO) - Wastewater reuse
• Scrubber wastewater - Removal of hydrocarbons
and TSS to meet discharge requirements
• PetroChemical - Reuse of high strength organic
wastewater
DRINKING WATER• Ground water treatment - Removal of Fe, Mn, As, Ra.
• Sea Water desalination Pre-treatment to RO - Removal
of Algae, TOC & TEP
• Surface water treatment - Removal of turbidity,
micro-organism and Arsenic
PRODUCED WATER TREATMENT• Pre-RO treatment of flowback water for
surface discharge or reuse
• Recovery of RO brine with Lime Softening
+ SiC filtration
TECHNOLOGY KEY FEATURES ceramic is not just ceramics:Our membrane and substrate are produced from Silicon Carbide (SiC) on a flat sheet structure. This gives our membrane some unique advantages:
KEY HIGHLIGHTS OF CEMBRANE:• 0.1 µm pore size• Highly assymetric structure• Outside-in filtration direction• Submerged vacuum/gravity driven• Double sided filtered water outlet for high flux operation• Self-degassing due to filtered water outlet at the top of end-cap
HYDROPHILIC MEMBRANE SURFACE:A membranes contact angle to water is an accurate measure of how hydrophilic a membrane is. The more hydrophilic the membrane surface the higher the operating flux rate. Achieved benefits using Cembrane:
• 3-10x the flux compared to polymeric 15,000 LMH/bar clean water permeability• Unmatched low footprint up to 160 m3/day pr. m2 (MBR) / 1100 m3/day pr. m2 (Drinking Water)• Low pressure operation at high flow 0.1 - 0.4 bar• High recovery rates more than 99% (Drinking water)• Applicable for high sludge concentration can operate in concentrations of 4% organic waste & 10% inorganic waste
“Up to 150 LMH in MBR & 900 LMH in Drinking water”Source: 1. Silicon Carbide - an attractive membrane material. 2014. A. Julbe et al. 2. Evaluation of Membrane Characterization Methods. 2012. Webreport 4102.
SiC FLAT SHEET MEMBRANE
Filter active layer on the outside of the membrane plate 0.1 mm
Membrane body (substrate)with very large pore size 8 mm
0 20 40 60 80 100
SIC
ALUMINA OXIDE
PES UF
CELLULOSE UF
PCTE MF
POLYARAMIDE UF
PVDF UF
Water droplet contact angel o
Very hydrophilic Less hydrophilic
CHEMICALLY INERT MEMBRANE MATERIAL:Silicon Carbide has complete chemical resistance. This provides a range of benefits in various applications:
• Can operate in extreme environments - pH 1-14
• Extremely durable & reliable operation
• Fast and easy restoring of permeability
• High resistance to oxidants even ozone
LOW FOULING POTENTIAL ON CEMBRANE’S MEMBRANE SURFACE:Due to the negative charge of the membrane surface on a wide pH range, the membrane is less prone to fouling and clogging and allows for less maintenance equirement.
2 4 6 8 101 3 5 7 9 110
+20
+40
+60
-20
-40pH [-]
Typical pHrange
with FeCl3
dosage
SiC - CembraneGamma-Al2O3
Alpha-Al2O3
SiO2 (Sand)
Zeta
pot
en�a
l (m
V)
ReversibleIrreversibleSpread
Rev
ersi
ble
foul
ing
(bar
)
AI203 Ti02 Ti*02 Zr02 Polymer Polymer*SiC
Irre
vers
ible
foul
ing
(bar
* m
2 /L)
00
0.1
0.2
0.3
0.4
0.5
0.001
0.002
0.003
SiC
1.8
2.5
<0.2
<0.2
<0.2
<0.2
<0.2
Alumina Oxide
65
75
72
60
7
>1000
20
Si composites
55
>1000
0,9
>1000
0,5
8,8
7,9
Tungsten carbide
>1000
5
85
3
>1000
55
8
TEST ENVIRONMENT (WT%)
98% H2SO4 @ 100o C
50% NaOH @ 100o C
25% HCl @ 70o C
45% KOH @ 100o C
70% HNO3 @ 100o C
85% H3PO4 @ 100o C
53% HF @ 25o C
CORROSIVE WEIGHT LOSS [MG/CM2/YR]
Zeta potential of various ceramic membrane materials.Source: Farsi, Ali. Department of Chemistry and Bioscience, Aalborg University.
Source: Corrosion prevention and protection. 2007. Sastri et al.”
“Test made in surface water”Source: Comparison of ceramic and polymeric membrane permeability and
fouling using surface water. 2011. Hofs et al.
SPECIFICATIONS membrane & module
Flat sheet Single module Tower-Rack
MODULE 6.0 S
1 - 15
1 - 6
Maximum flexibility due to fully modular concept with free selection of modules per tower and towers per rack.
Most compact installation due to frameless rack design.
Easy tower assembly due to simple key lock connection.
Lift or removal option for single towers(remaining towers stay in opera on).
Integrated double sprinkler line for enhanced cake layer removal and chemical spray.
Header system with option of direct injection of chemicals into header collector or connection of additional instrumentation.
MODULE 6.0 H
1 - 9
1 - 4
MODULE TYPE
NO. OF MODULES PER SINGLE TOWER
NO. OF SINGLE TOWERS PER RACK
MODULE SURFACE AREA 6 M2
LENGTH L 700 MM
WIDTH W 655 MM
HEIGHT H (WITH 1 MODULE) 450 MM
EXTRA HEIGHT PER MODULE 160 MM
WEIGHT (WITH 1 MODULE) APPROX. 41.0 KG (DRY) / APPROX. 52.0 KG (WET)
EXTRA WEIGHT PER MODULE APPROX. 35.7 KG (DRY) / APPROX. 47.0 KG (WET)
DISPLACEMENT VOLUME (WITH 1 MODULE) 32 LITERS
EXTRA DISPLACEMENT VOLUME PER MODULE 25 LITERS
CLEANING OPTIONS BACKPULSE/PRESSURE WASHING/SPRINKLER/OZONE/CIP&CEP
SPECIAL FEATURES
INSTALLATIONflow diagram of operationBelow flow diagram illustrates the required equipment to operate the techno-logy to its fullest. The membranes can run without pumps, merely on gravity and air-scouring. But to reach its peak performance, we recommend designing with options as illustrated below.
• High pressure backpulse for fast permeability recovery• Integrated on-air membrane tower wash-down for removal of sticky sludge and debris trapped between membranes and towers• Integrated on-air chemical cleaning from the outside instead of regular CEB. This cleaning option requires less than 1/10 the chemical volume.• Membrane towers are densely packed in tank for all applications providing small footprint• Flow through the membrane towers of feed water provides an even concentration throughout the tower and complete discharge of sludge accumulations between membrane units during backwash and relaxation mode
Feed inlet
Waste outlet
Chemical Pump
Backwash Pump
Sprinkler Pump
Filtration Pump
Blower
De-gassingline
Membrane TankCompact design regardless
of application
Angled floor fore�ective waste discharge
Filtered water
Flow through of concentrate to pre-treatment (Used in MBR and high TSS applications)
BackwashTank
HEADQUARTER & MANUFACTURING IN DENMARK:Nøglegårdsvej 103540 LyngeDenmarkPhone: +45 2148 4321Email: [email protected]
CEMBRANE GERMANY:Phone: +49 15253556625Email: [email protected]
CEMBRANE SINGAPORE:Phone: +65 96918580 Email: [email protected]
CEMBRANE IRAN:Phone: +1 4168360997 Email: [email protected]
CEMBRANE US Phone: 505-801-4224Email: sales.us @cembrane.com
CEMBRANE TURKEY:Phone: +90 5412962532Email: [email protected]
www.cembrane.com
