Reclaimed water recycling process

A reclaimed water and process technology, applied in the field of water treatment, can solve the problems of large investment, long construction period, and large floor area

Inactive Publication Date: 2010-07-07
SHANGHAI WANSEN WATER TREATMENT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a reclaimed water reuse process. The reclaimed water recycle process described in the prior art needs to solve the problem of large floor area, large investment, long construction period and unstable operation of the advanced sewage treatment equipment in the prior art. technical problem

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Embodiment Construction

[0017] Such as figure 1 As shown, the present invention provides a kind of reclaimed water process, comprises a step of removing phosphorus, in the process of removing phosphorus, adds lime, lime reacts with phosphate and precipitates, also includes a step of removing COD, removes COD In the first step, the biological filter material is used to decompose the organic matter in the water, remove the COD in the water, convert the nitrogen from the organic nitrogen to the nitrate nitrogen, and then filter, disinfect and discharge the water.

[0018] Further, in the step of removing phosphorus, water is introduced into the stirring tank, lime is added for stirring, and then the water is introduced into the sedimentation tank.

[0019] Further, an air inlet pipe is arranged on one side of the stirring tank, and a fan is arranged on the air inlet pipe.

[0020] Further, an air inlet pipe is arranged on one side of the sedimentation tank, and a fan is arranged on the air inlet pipe. ...

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Abstract

The invention relates to a reclaimed water recycling process, which comprises a step of removing phosphorus and a step of removing COD. In the step of removing phosphorus, lime is added into reclaimed water to utilize lime to react with phosphate to deposit. In the step of removing COD, a biological filter material is utilized to decompose organic substances in the reclaimed water, remove the COD in the water, convert nitrogen into nitrate nitrogen from organic nitrogen and then carry out filtering and sterilization. After being processed by the method of the invention, the domestic sewage can reach the primary standard in the city comprehensive discharge standards, can be recycled as the reclaimed water and fulfills the aim of saving energy and reducing emission.

Description

Technical field: [0001] The invention relates to water treatment technology, in particular to a sewage treatment method, in particular to a reclaimed water reuse process. Background technique: [0002] Waste water and waste gas are discharged into rivers, rivers, lakes, and seas, seriously polluting water bodies. Many hotels, restaurants, scenic spots and resorts generally have sewage treatment facilities, and the water quality standard of the effluent can reach the standard of secondary treatment. However, wastewater that meets the secondary discharge standard cannot be reused and requires advanced treatment. In the prior art, advanced sewage treatment equipment occupies a large area and requires a lot of investment. The construction period is long and the operation is unstable. Invention content: [0003] The purpose of the present invention is to provide a reclaimed water reuse process. The reclaimed water recycle process described in the prior art needs to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/58C02F1/50
Inventor 沈志昌
Owner SHANGHAI WANSEN WATER TREATMENT CO LTD
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