Description
Reverse osmosis membrane filtration process. Osmosed water production
Study the reverse osmosis process for water and various NaCl solutions:
- Determine the osmotic pressure of water
- Van’t Hoff equation
- Determine how the overall retention of the module varies with the filtration pressure and initial concentration of the salt solution
- Variation in the conversion rate of the membrane
Qualitative and quantitative comparison with experimental data:
- Material balance
- Influence of pressure on osmosed water production rate
Proposed experiments:
- Filtration with water:
- Determine the osmotic pressure of water.
- Demonstrate the Van ’t Hoff equation.
- Filter NaCl solutions with increasing concentrations:
- For each concentration, measure the conductivity and permeate and concentrate flow rates.
- Determine the overall NaCl retention of the module.
- Determine the NaCl conversion rate.
- Compare the qualitative and quantitative yield.
Technical description:
- 1 200L polyethylene tank with removable lid, isolating valve and draining valve.
- Raw water feeding with cartridge filter.
- Copper coil for cooling fluid circulation and isolating valves.
- Low level switch.
- Stainless steel multi stage centrifugal pump 0 to 20 bar , flow rate 4-12m³/hour. Isolating valve and pressure gauge 0-25 bar on the discharge pipe.
- Reverse osmosis module.
- Stainless steel casing, polymer filament membrane.
- Pressure dial gauge 0 to 25 bar on the
- feeding section and adjusting valve.
- Vinyl pipe permeate circuitry:
- Sampling valve
- Float flow meter, 64 to 640 L/hour.
- 100L polyethylene storage tank, graduated, with removable lid and draining valve
- Vinyl pipe retentate circuitry:
- Sampling valve
- Pressure retaining valve
- Float flow meter, 300 to 3000 L/hour.
- 100L polyethylene storage tank, graduated, with removable lid and draining valve
- Stainless steel by-pass circuitry:
- Pressure-retaining valve.
Instrumentation
- 3 manometers.
- 3 PVC flowmeters
- 2 combined probes (conductivity and temperature) with portable electronic indication.
Dim : 200 x 80 x 195 cm – 125 kg
SS tubular framework 40 x 40mm
For a complete product data sheet and a list of reference sites please call 1-877-967-2726.