 GREWA - M
3rd Generation Membrane Bio Reactor combining two proven Technologies
- Biological: Enhanced biological treatment incorporating BNR
- Physical: Immersed membrane filtration system
Is a Fully Automatic and Totally Self-contained, packaged treatment system.
System footprint is significantly smaller than conventional aeration basins because the high biomass concentration enables the use of a much smaller aeration tank and the efficient membrane filtration process eliminates the need for a clarifier space. It produces the finest treated water, meeting the most stringent pollution control norms. This fully automated system requires minimal operator intervention. Grewa-M meets the challenges of wastewater treatment globally.
| The Challenge |
| High load variation (peak/non-peak) |
| Space constraints |
| High-concentration wastewater and stringent discharge regulations |
| Capital expenditure |
| High operating costs |
| Odour control |
| Nutrient removal |
| Manpower/Operator |
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| Solutions |
| Adapts to high load variation |
| Low footprint-20-50% lower than conventional systems |
| High quality treated water |
| Need for chlorination/UV for tertiary treatment eliminated Treatment capacity expansion via existing plant retrofit or staged upgrade |
Low power consumption (0.85 KwH/m3)
Reduced cleaning chemicals |
| Continuous aeration eliminates odour completely |
| Efficient removal of Nitrogen and Phosphorus |
| Minimal operator intervention required with advanced control system and maintenance services |
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Applications
- Residential and commercial Complexes, Hotels, Restaurants etc.
- Municipal sewage treatment
- Industrial waste water treatment
Treated Water Reuse
- Ideal for RO feed, HVAC and cooling towers
- Horticulture and irrigation
- Flushing, cleaning and car wash
- Sludge reuse landfill, gardening and landscaping
- Pre-treatment for RO inlet
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| Specifications |
Treated Water parameter chart |
| Sr. No |
Model |
Average Flow (m3/day) |
Membrane Area (m2) |
Skid size in metres |
| L |
W |
H |
| 1 |
M1025A |
25 |
1x60 |
4.0 |
2.2 |
2.2 |
| 2 |
M1050A |
50 |
2x60 |
6.8 |
2.2 |
2.2 |
| 3 |
M1075A |
75 |
3x60 |
10.7 |
2.2 |
2.2 |
| 4 |
M1100A |
100 |
4x60 |
11.7 |
2.2 |
2.2 |
| 5 |
#M1125A |
125 |
5x60 |
9.6 |
2.2 |
2.2 |
| 6 |
#M1150A |
150 |
6x60 |
11.2 |
2.2 |
2.2 |
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| Parameters |
UOM |
Inlet water |
Treated Water (Effluent ) |
| PH |
PPM |
6-8 |
6.5-8 |
| TSS |
PPM |
300 |
<1 |
| BOD |
PPM |
300 |
<5 |
| COD |
PPM |
600 |
<50 |
| Oil and Grease |
PPM |
10 |
<1.0 |
| Nitrogen |
PPM |
30 |
<3.0 |
| Phosphorus |
PPM |
10 |
<1.0 |
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NB# for these models, Aerobic tanks not considered in Reactor tank
and needs to be constructed in RCC/Civil work not included |
Typical characteristics of domestic sewage As per Model A of Grewa-M |
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