Indus Membrane Bio Reactor Presentation

for sewage recycle

INDUS ECOWATER PRIVATE LIMITED

www. modernstp.com

 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 reuse  Treated water from MBR is crystal clear

Submerged Side

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

ď‚ž In

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

INTENSIVE PRESCREENING & DISPOSAL

HIGH ENERGY CONSUMPTION

HIGH MEMBRANE AREA

MBR HIGH MEMBRANE FOULING ENVIRONMENT LARGE EQUALIZATION BASIN

SUBSTANTIAL OPERATOR TRAINING

 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 ADVANTAGES 

    

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 ……        

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 COMPARISION Submerged 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%

100%

26%

TOTAL

Submerged MBR

Side stream MBR

MLSS MEMBRANE FOULING

HIGH

LOW

MEMBRANE FLUX

LOW

MODERATE

MEMBRANE REQUIREMENT

HIGH

MODERATE

MEMBRANE COST

HIGH

MODERATE

RECIRCULATION ENERGY

HIGH

NIL

AIR SCOUR ENERGY

HIGH

NIL

OXYGEN TRANSFER EFF.

LOW

HIGH

SCREENING REQUIREMENTS

HIGH

LOW

PEAK F:OW TOLERANCE

LOW

MODERATE

MODERATE

MODERATE

FOOT PRINT

from

INDUS ECOWATER

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

INDUS ECOWATER PRIVATE LIMITED

Plot No. 201/7 Phase-II IDA Cherlapally HYDERABAD51 Customer care: 080-6134-4798 e-mail: sales@modernstp.com

www.modernstp.com