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Method and apparatus for treating industrial waste water and urban waste water

A technology of sewage treatment equipment and water treatment equipment, which is applied in the field of water treatment to achieve reasonable and effective cleaning, good flocculation effect, and less dosage

Inactive Publication Date: 2009-07-01
北京相武科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] In a word, the above method still does not fundamentally solve the problem of sewage treatment.

Method used

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  • Method and apparatus for treating industrial waste water and urban waste water
  • Method and apparatus for treating industrial waste water and urban waste water
  • Method and apparatus for treating industrial waste water and urban waste water

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Embodiment Construction

[0077] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0078] The water treatment equipment of the present invention comprises: a flocculant storage tank, a flocculation filter tank, a mechanical filter, a precision filter, a microfiltration membrane filtration device, a pump and pipelines.

[0079] Take the treatment of sewage generated in the pulp and papermaking process as an example.

[0080] Such as figure 1 As shown, the present invention includes: primary pulp washing equipment 1, secondary pulp washing equipment 2, bleaching pulp equipment 3, bleaching pulp residual liquid equipment 4; and connected with online water treatment equipment units TR1, TR2, TR3, TR4 respectively; The water treatment equipment units TR2, TR3, and TR4 are respectively connected to the terminal water desalination treatment equipment unit TR5; and the output end of the terminal water desalination treatment equipment unit T...

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Abstract

The invention belongs to the field of water treatment, in particular to sewage treatment equipment in the pulping process. The sewage treatment equipment of the present invention includes: TR1, TR2, TR3, TR4 online water treatment equipment units, pulp refining in the pulping process; primary and secondary pulp washing; bleaching and rinsing processes, using flocculation and mechanical filtration, precision Filtration and ultrafiltration devices carry out water treatment, and the desalination treatment equipment unit TR5 ensures the final desalination of circulating water. The water treatment process of the present invention is that after the flocculant is added to the sewage, the whole process is in the process of changing the fluid form, biochemical polymerization reaction and mechanical physical movement, and the pollution factors are rapidly flocculated and freed during the flow process, and the fine particles in the water can be removed. Particulate impurities form hydrophilic and insoluble large groups of substances that are easy to filter, and can dehydrate pollutants into dry matter. The invention has less equipment investment; the treated water is recycled; and no waste liquid is discharged. The invention can be applied to paper pulping, urban sewage and industrial sewage treatment, and has remarkable economic benefits.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to sewage treatment equipment in the pulping process. Background technique [0002] At present, the harm caused by the paper industry to environmental pollution is very obvious, especially in the pulp production link of paper production, due to the production processes such as cooking method and oxidation method, a large amount of waste water will be generated in the production process. Using traditional sewage treatment methods, the efficiency of sewage treatment is low; the investment and operation costs of water treatment equipment are large; the energy consumption is high, which has led many paper-making enterprises to secretly discharge production wastewater into rivers, rivers, and lakes, seriously polluting water resources and pollute the environment. In addition, most urban sewage in our country is directly discharged without effective treatment, and the resulting water pollu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52
Inventor 程相武
Owner 北京相武科技有限公司
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