INDUS ECOWATER PRIVATE LIMITED

www. modernstp.comfor sewage recycle

Membrane Bio Reactor (MBR) is a combination of biological activated sludge treatment processes and physical filtration using Ultra-Filtration MembranesUltra-Filtration membranes are similar to Reverse Osomosis Membranes with bigger poresMBR produces high quality water with low BOD and Suspended Solids suitable for re-useTreated water from MBR is crystal clear

SubmergedSide stream

Cost of Submerged Membranes is more than double that of side stream membranesDue to lower flux, more submerged membranes are required than side stream membranes for the same volumeBigger aeration tanks are required for submerged MBRBigger air blowers are required for submerged MBRComplex automation is required for submerged MBR

In submerged MBR, membranes are directly immersed into bioreactor with highly concentrated mixed liquor suspended solids.MLSS contains high levels of dispersed, small particles comprising of inert and colloidal material.High membrane fouling environment, which results in low membrane flux rates, results in large membrane surface area.

MBR HIGH MEMBRANE FOULING ENVIRONMENTHIGH ENERGY CONSUMPTIONINTENSIVE PRESCREENING& DISPOSALLARGE EQUALIZATION BASINHIGH MEMBRANE AREASUBSTANTIALOPERATORTRAINING

MBR HAS LOW FLUX i.e, More Membrane surface area is required for submerged MBR as compared to Side stream MBRMBR REQUIRES 1 mm FINE SCREENING- Fine screening removes substantial amount of untreated waste that must be disposed off by other means. Fine screening requires additional equipment like cutters etc that consume power. MBR REQUIRES HIGH MEMBRANE AIR SCOUR RATES higher air requirement results in higher power consumption

SIDE STREAM MBR ADVANTAGESBiological process (MBBR) and Membrane Filtration are two separate process units Enabling maximum total system performance. Each process unit MBBR & UF are optimized and controlled independently97% less Suspended Solids in UF membrane feed reduces fouling drasticallyTHIS DIRECTLY INCREASES THE MEMBRANE FLUXEven existing biological plants can be upgraded with external UF plantSimple Micro-controller automation is sufficient for UF

SIDE STREAM MBR CAN TOLERATE MODERATE PEAK FLOW RATES. WILL REQUIRE SMALLER EQUALIZATION TANK.NO FINE SCREENING REQUIREMENT.NO SLUDGE RECIRCULTION- ENERGY SAVING.NO AIR SCOURING REQUIRED- ENERGY SAVING.SINCE MLSS IS LOW IN MBBR, OXYGEN TRANSFER EFFICIENCY IS HIGH REDUCING AIR REQUIREDFLUX RATES CAN BE MUCH HIGHER, SAVES COST OF MEMBRANES.SINCE MLSS IS VERY LOW, MEMBRANE FOULING MINIMUM.

ENERGY CONSUMPTION COMPARISIONSubmerged MBR Vs Side Stream MBR

Submerged MBRSide stream MBRMEMBRANE AIR BLOWER38%NOT REQUIREDRECIRCULTION PUMPS18%NOT REQUIREDPROCESS AIR BLOWERS35%17%

MISCLLANEOUS9%9%

TOTAL100%26%

Submerged MBRSide stream MBRMLSS MEMBRANE FOULINGHIGHLOWMEMBRANE FLUXLOWMODERATEMEMBRANE REQUIREMENTHIGHMODERATEMEMBRANE COSTHIGHMODERATERECIRCULATION ENERGYHIGHNILAIR SCOUR ENERGYHIGHNILOXYGEN TRANSFER EFF.LOWHIGHSCREENING REQUIREMENTSHIGHLOWPEAK F:OW TOLERANCELOWMODERATEFOOT PRINTMODERATEMODERATE

INDUS ECOWATERfrom

MBBR Biological system + External Ultra-Filtration

50% Capital cost savings over submerged MBRSmaller tanks reduced foot print & lesser costPre-fabricated plants up to 100 KLD Existing Biological STP can be retro-fittedComplete automation with micro-controller for STP & UFRemote monitoring and control with GSM networkOperate & control STP & UF over internetFull time operator NOT required

Guarantees trouble free operation& Peace of mind to users

Plot No. 201/7 Phase-II IDA Cherlapally HYDERABAD- 51INDUS ECOWATER PRIVATE LIMITED

Customer care: 080-6134-4798www.modernstp.come-mail: sales@modernstp.com