Indus Membrane Bio Reactor Presentation
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Transcript of Indus Membrane Bio Reactor Presentation
INDUS ECOWATER PRIVATE LIMITED
www. modernstp.com
for sewage recyclefor sewage recycle
Membrane Bio Reactor (MBR) is a combination of biological activated sludge treatment processes and physical filtration using Ultra-Filtration Membranes
Ultra-Filtration membranes are similar to Reverse Osomosis Membranes with bigger pores
MBR produces high quality water with low BOD and Suspended Solids suitable for re-use
Treated water from MBR is crystal clear
SubmergedSide stream
Cost of Submerged Membranes is more than double that of side stream membranes
Due to lower flux, more submerged membranes are required than side stream membranes for the same volume
Bigger aeration tanks are required for submerged MBR
Bigger air blowers are required for submerged MBR
Complex 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
ENVIRONMENT
HIGH ENERGY CONSUMPTIONINTENSIVE
PRESCREENING& DISPOSAL
LARGE EQUALIZATION
BASIN
HIGH MEMBRANE
AREA
SUBSTANTIALOPERATORTRAINING
MBR HAS LOW FLUX – i.e, More Membrane surface area is required for submerged MBR as compared to Side stream MBR
MBR 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 SIDE STREAM MBR ADVANTAGESADVANTAGES Biological process (MBBR) and Membrane Filtration are
two separate process units – Enabling maximum total system performance.
Each process unit MBBR & UF are optimized and controlled independently
97% less Suspended Solids in UF membrane feed reduces fouling drastically
THIS DIRECTLY INCREASES THE MEMBRANE FLUX Even existing biological plants can be upgraded with
external UF plant Simple Micro-controller automation is sufficient for UF
SIDE STREAM MBR ……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 REQUIRED FLUX RATES CAN BE MUCH HIGHER, SAVES COST
OF MEMBRANES. SINCE MLSS IS VERY LOW, MEMBRANE FOULING
MINIMUM.
ENERGY CONSUMPTION COMPARISIONENERGY CONSUMPTION COMPARISIONSubmerged MBR Vs Side Stream MBRSubmerged MBR Vs Side Stream MBR
Submerged MBR Side stream MBR
MEMBRANE AIR BLOWER
38% NOT REQUIRED
RECIRCULTION PUMPS
18% NOT REQUIRED
PROCESS AIR BLOWERS
35% 17%
MISCLLANEOUS 9% 9%
TOTAL 100% 26%
Submerged MBR
Side stream MBR
MLSS MEMBRANE FOULING HIGH LOWMEMBRANE FLUX LOW MODERATEMEMBRANE REQUIREMENT HIGH MODERATEMEMBRANE COST HIGH MODERATERECIRCULATION ENERGY HIGH NILAIR SCOUR ENERGY HIGH NILOXYGEN TRANSFER EFF. LOW HIGHSCREENING REQUIREMENTS HIGH LOWPEAK F:OW TOLERANCE LOW MODERATEFOOT PRINT MODERATE MODERATE
INDUS ECOWATERfromfrom
MBBR Biological system + External Ultra-Filtration
50% Capital cost savings over submerged MBR
Smaller tanks – reduced foot print & lesser cost
Pre-fabricated plants up to 100 KLD Existing Biological STP can be retro-fitted Complete automation with micro-controller
for STP & UF Remote monitoring and control with GSM
network Operate & control STP & UF over internet Full time operator NOT required
Guarantees trouble free operation
& Peace of mind to
users
Plot No. 201/7 Phase-II IDA Cherlapally HYDERABAD- 51
INDUS ECOWATER PRIVATE LIMITED
Customer care: 080-6134-4798
www.modernstp.com
e-mail: [email protected]