Landscape water recovery purposes

Landscape water recovery purposes

1.Inlet water quality
BOD5 = 200mg / L; SS = 250mg / L; TN = 40mg / L; NH3-N = 30mg / L; pH = 6 ~ 9.

2. The degree of treatment

Because of the treated effluent discharged to surrounding river and canals, according to wastewater discharge standards (GB 8978-1996), secondary standards should be implemented. Taking into account the treated water will be used as industrial cooling water , so increasing the NH3-N index, after the treated effluent water quality: BOD5≤20mg / L; SS≤30mg / L; NH3-N≤3mg / L.

3. The treated water reuse
(1) Back to the water plant
The construction of a 1 × 104m3 / d scale water treatment facilities, as factory equipment cleaning, washing vehicles, greening and cleaning miscellaneous water.
(2) Industrial cooling water
The second phase project to improve 20 × 104m3 / d is used as industrial cooling water.
(3) Lakes landscape water
After treatment the water supply lakes rivers and parks, beautify the urban environment.
(4) Agricultural irrigation water
Treatment plant effluent for irrigation.

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