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Sewage treatment process

A technology of sewage treatment and treatment process, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Oxygen etc.

Inactive Publication Date: 2013-11-20
SUZHOU INDAL PARK HESHUN ENTERPRISE ENVIRONMENTAL PROTECTION SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, chemical enterprises such as papermaking discharge a large amount of sewage in the production process. These sewage belong to organic wastewater. This organic sewage needs to be treated before it can be discharged into nature. Oxygen deficiency affects the survival of fish and other aquatic animals. At the same time, suspended solids in sewage are easy to decompose under anaerobic conditions to produce odor and deteriorate water quality.
The treatment of organic sewage before being discharged into nature generally uses microbial strains to degrade the organic matter in the sewage, but this traditional sewage treatment method has incomplete treatment

Method used

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Embodiment Construction

[0011] The sewage treatment process of the present invention is in the order of sewage treatment: sewage pretreatment process, first-level anaerobic treatment process, aerobic treatment process, physical and chemical treatment process and centralized discharge process.

[0012] The sewage pretreatment process mainly uses the desulfurizer set in the comprehensive adjustment tank to pretreat the sewage. The first-level anaerobic treatment process includes the following steps: firstly, the sewage is sent to the filter layer reactor, the filter layer reactor is used to separate and anaerobic the sewage slurry; then the sewage is sent to the baffled anaerobic reactor , Quick separation and anaerobic treatment of bubbles and mud in sewage.

[0013] The aerobic treatment process mainly uses aerobic tanks to aerobic treatment of sewage. The physical and chemical treatment process includes the following steps: first send the sewage into the decolorization reaction tank, use the decolorizin...

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Abstract

The invention discloses a sewage treatment process. The sewage treatment process comprises following steps, by sequence: sewage pre-treatment process, first-grade anaerobic treatment process, aerobic treatment process and physicochemical treatment process. According to the sewage treatment process, sewage is subjected to the sewage pre-treatment process, the first-grade anaerobic treatment process, the aerobic treatment process and the physicochemical treatment process. Discharge standards can be met by the treated sewage after processes of pre-treatment, anaerobic treatment, aerobic treatment and physicochemical treatment. In addition, in order to realize unified management, after the physicochemical treatment process, the sewage is delivered into a discharge pool for unified emission.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection equipment, and particularly relates to a sewage treatment process. Background technique [0002] At present, a large amount of sewage is discharged in the production process of chemical enterprises such as papermaking. These sewage are organic wastewater. This organic sewage needs to be treated before it can be discharged into nature. Otherwise, directly discharged into natural water bodies will quickly consume dissolved oxygen in the water and cause water bodies. Hypoxia affects the survival of fish and other aquatic animals. At the same time, suspended solids in sewage are easily decomposed under anaerobic conditions to produce odor and deteriorate water quality. The treatment of organic sewage before it is discharged into nature generally adopts the use of microbial strains to degrade the organic matter in the sewage, but this traditional sewage treatment method has the phenomenon o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 何金彬许怡
Owner SUZHOU INDAL PARK HESHUN ENTERPRISE ENVIRONMENTAL PROTECTION SERVICE