Pure water plant engineering design

First, the water parameters

Source water: urban tap water, groundwater (need to test water sample), inlet pressure >0.3MPa,

The inlet conductivity is <800us/cm; when the inlet conductivity is >800us/cm, it is recommended to use two-stage reverse osmosis.

1. Design parameters: 3000GPD/12 tons/600 barrels/day (single and double level), 6000GPD/24 tons/1200 barrels/day (single and double level)

2, water standard: national pure water standard (GB17324-2000)

Second, the process

Source water tank → source water booster pump → multi-media filter → activated carbon filter → yang resin softener → precision filter → first-class RO reverse osmosis pure water system →

Secondary RO reverse osmosis pure water system → water gas mixer → ozone sterilizer → stainless steel pure water tank → automatic filling line

Third, the design plan

1. The first-stage pretreatment system: the quartz sand multi-media filter is used to remove the substances harmful to the human body such as sediment, rust, colloidal substances and suspended solids contained in the source water. The system can automatically (Manual) Perform a series of operations such as backwashing and flushing.

2, the second-stage pretreatment system: the use of shell activated carbon filter, the purpose is to remove the pigment, odor, biochemical organic matter in the water, reduce the residual chlorine value of the water and pesticide pollution and other harmful pollutants. The system can automatically (manually) perform a series of operations such as backwashing and flushing.

3. The third-stage pretreatment system: softening the water with a cation resin, mainly reducing the hardness of the water, removing the calcium and magnesium ions in the water (the main component forming the scale), and effectively extending the service life of the reverse osmosis membrane, and Intelligent resin regeneration is possible.

4. The fourth-stage pretreatment system: the 5um aperture precision filter is used to further purify the water, so that the turbidity and color of the water are optimized. Ensure the water system requirements of the RO system, ensure the water quality of the equipment, and extend the service life of the equipment.

5, pure water equipment host: the use of reverse osmosis technology for deep desalination treatment (imported US reverse osmosis membrane) to remove calcium, magnesium, lead, mercury and other harmful heavy metals and other impurities, reduce water hardness, desalination rate of 99 More than %, produce pure water in line with national standards.

6. Double-stage reverse osmosis host: through the first-stage reverse osmosis treatment water, and after the second reverse osmosis treatment, the water quality is further purified, the effluent water quality reaches the national standard, and is suitable for users with poor source water quality or special industries. Special requirements.

7, sterilization system: the use of ozone generator (or UV sterilizer), reduce secondary pollution of bacteria, sterilization rate of up to 99%, while ozone dissolved in water to form oxygen-rich water, to ensure the purity of water. A water-gas mixer is used to mix the ozone with water to achieve an optimum concentration ratio.

8. Water storage system: It adopts stainless steel pure water tank and is equipped with automatic liquid level control system. The water can be automatically shut down to realize automatic management.

9. Filling system: manual filling machine, semi-automatic filling machine, automatic filling machine (bucket, vial) alternative.