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ozone generator water treatment

Brand : Quanju

Product origin : Guangzhou

Delivery time : 10-15days

Supply capacity : 100 units per month

ozone generator water treatment

Ozone water machine is widely used in water treatment application: drinking water treatment, swimming pool water treatment, bottled water treatment and etc.

Specification:

1) Ozone production: 3g-100g/h

2) Water flow rate: 1-20m3/hr

3) Ozone concentration in water: 0.2-0.6ppm

4) Compact system with ozone unit, mixing pump(or venturi and water pump), and mixing tank

5) For water treatment, without any equipments. It can generate ozonated water directly.

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Drinking water treatment knowledge:

a: Prefiltration

1) The uptake of water from surface waters or groundwater and storage in reservoirs. Aeration of groundwater and natural treatment of surface water usually take place in the reservoirs. Often softening and pH-adjustments already happen during these natural processes.
2) Rapid sand filtration or in some cases microfiltration in drum filters.

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b: Addition of chemicals
3) PH adjustment through addition of calcium oxide and sodium hydroxide.
4) FeCl3 addition to induce flocculation for the removal of humic acids and suspended particulate matter, if necessary with the addition of an extra flocculation aid. Flocs are than settled and removed through lamellae separators. After that the flocs are concentrated in sludge and pumped to the exterior for safe removal of the particulates and sludge dewatering.

5) Softening in a reservoir, through natural aeration or with sodium hydroxide, on to 8,5 oD. This is not always necessary. For instance, in case natural filtration will be applied, softening takes place naturally.

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c: Natural filtration
6) Drinking water preparation step that is specific for the Netherlands: Infiltration of the water in sand dunes for natural purification. This is not applied on all locations The water will enter the saturated zone where the groundwater is located and it will undergo further biological purification. As soon as it is needed for drinking water preparation, it will be extracted through drains.


d: Disinfection
7) Disinfection with sodium hypochlorite or ozone. Usually ozonation would be preferred, because ozone not only kills bacteria and viruses; it also improves taste and odour properties and breaks down micro pollutants. Ozone diffuses through the water as small bubbles and enters microrganisms cells by diffusion through cell walls. It destroys microrganisms either by disturbance of growth or by disturbance of respiratory functions and energy transfers of their cells. During these processes ozone is lost according to the reaction O3 -> O2 +(O).

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e: Fine filtration
8) Slow sand (media) filtration for the removal of the residual turbidity and harmful bacteria. Sand filters are backwashed with water and air every day.
9) Active carbon filtration for further removal of matter affecting taste and odour and remaining micro pollutants. This takes place when water streams through a granular activated carbon layer in a filter. Backwash is required regularly due to silting up and reactivation of an active carbon filter should be done once a year.


f: Preservation and storage
10) Addition of 0.3 mg/L sodium hypochlorite to guarantee the preservation of the obtained quality. Not all companies chlorinate drinking water. The water will eventually be distributed to users through pipelines and distribution pumps.
11) Aeration for recovery oxygen supply of the water prior to storage. This is not always applied.
12) Remaining water can be stored in drinking water reservoirs.

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