SEMI-BATCH REVERSE OSMOSIS
- HIGH RECOVERY
- LOW ENERGY
- ROBUST
- OPERATOR FRIENDLY
ADVANTAGES
High Recovery
- Osmosys Tech Semi-Batch reverse osmosis system concentrates feed water in batches and can reach 98% recovery while traditional systems can hardly achieve75% recovery.
Lower Energy Consumption
- Semi-Batch reverse osmosis system increases working pressure gradually and saves energy when compared with traditional systems.
Fouling Resistant
- Osmosys Semi-Batch reverse osmosis system residence time is adjusted to be lower than scale and fouling nucleation induction time and will reject concentrated brine before deposition on membrane surfaces.
- Cross flow speed of water can also be adjusted by the operator to ensure safe operation.
- Since Semi-Batch reverse osmosis system operates in batches, concentration and working pressure change continuously causing high stress on bacteria and limiting their growth.
Operator Friendly
- Semi-Batch reverse osmosis system can automatically adapt to changing feed water conditions. Membrane flux is controlled by settings and the high pressure feed pump automatically adjusts required pressure to keep membrane flux constant.
MININIZE YOUR WATER FOOTPRINT
MAIN PARAMETERS
- AISI 316 SS for High Pressure Piping. (AISI 904L Available on Demand)
- PVC for low pressure piping.
- Epoxy Coated Carbon Steel for Frame.
- Thin Film Composite Membrane Elements with 28 mil or 34 mil Spacers.
- FRP 450 psi Pressure Vessels.
Example Case Study
Case 1 - Brackish Water
- Feed Water is 500 mg/L Well Water
- Feed Flow Rate 210 m3/h
- 40 Pressure Vessel with 200 Membrane Elements
- Target Recovery 95% Design Flux 27 lmh
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- Peak Operating Pressure is 20 Bar
- Permeate TDS < 10 mg/L
- Specific Energy Consumption is 0.64 kWh/m3 of Permeate
- Batch Duration is about 32 minutes
Example Case Study
Case 2 - TSE (Tertiary Sewage Effluent)
- Feed Water is 1000 mg/L Tertiary Sewage Effluent
- Feed Flow Rate 100 m3/h
- 20 Pressure Vessel with 100 Membrane Elements
- Target Recovery 96%
- Design Flux 25.8 lmh
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- Peak Operating Pressure is 22 Bar
- Permeate TDS < 120 mg/L
- Specific Energy Consumption is 0.56 kWh/m3 of Permeate
- Batch Duration is about 40 minutes
