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Chemical integrated wastewater treatment process

A technology of sewage treatment and biochemical treatment, which is applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc. It can solve the problem of environmental protection that cannot meet the treatment requirements of industrial park sewage treatment plants. Requirements and other issues, to achieve the effect of chromaticity reduction, good biochemical properties, and COD reduction

Inactive Publication Date: 2013-03-20
刘军华
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Problems solved by technology

The above process can only remove a small part of the nutrients such as nitrogen and phosphorus existing in the sewage. Generally, the removal rate of nitrogen is only about 20%, and the phosphorus removed by biochemical treatment is only 15% to 20%. Part of the nitrogen and phosphorus will be discharged to the receiving water body with the effluent, so it cannot meet the treatment requirements of the industrial park sewage treatment plant and the increasingly stringent environmental protection requirements

Method used

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  • Chemical integrated wastewater treatment process

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Embodiment Construction

[0018] A comprehensive chemical wastewater treatment process, including the following steps:

[0019] (1) Physical and chemical treatment: Sewage enters the coarse grid sequentially from the water inlet, and first removes large floating objects in the sewage to prevent the subsequent water pump unit from being blocked. The sewage is lifted into the regulating tank through the lift pump to adjust the water quality and volume, so that the sewage will not affect the subsequent biochemical treatment due to excessive changes in the water quality and volume. After adjustment, it enters the Fenton physicochemical pond for Fenton oxidation treatment to remove the color and improve the biodegradability of the sewage. Finally, pass the primary sedimentation tank to complete the physical and chemical treatment of sewage;

[0020] (2) Biochemical treatment: The sewage that has completed the physical and chemical treatment in step (1) is lifted into the fine grid, aeration grit tank, and a sed...

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Abstract

The invention belongs to the technical field of chemical wastewater treatment, and particularly relates to a chemical integrated wastewater treatment process. The chemical integrated wastewater treatment process comprises the following steps of: (1) physical and chemical treatment, (2) biochemical treatment, and (3) sludge treatment; and the chemical integrated wastewater treatment process is a scientific, reasonable, effective and low-cost wastewater treatment process technology.

Description

Technical field [0001] The invention belongs to the technical field of chemical wastewater treatment, and specifically relates to a chemical comprehensive wastewater treatment process. Background technique [0002] At present, the existing chemical wastewater treatment process has two treatment methods for organic pollutants in wastewater, one is physical and chemical treatment, and the other is biochemical treatment; the biochemical treatment process is divided into aerobic treatment, anaerobic treatment, and anaerobic treatment. Combination of oxygen and aerobic treatment. The above process can only remove a small part of the nutrients such as nitrogen and phosphorus in the sewage. Generally, the removal rate of nitrogen is only about 20%, and the phosphorus removed by biochemical treatment is only 15% to 20%. Part of the nitrogen and phosphorus will be discharged into the receiving water body with the effluent, so it cannot meet the treatment requirements of the sewage treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/12
Inventor 刘军华
Owner 刘军华
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