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Industrial wastewater treatment system and treatment method

A technology for industrial wastewater and treatment systems, applied in multi-stage water treatment, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as incomplete treatment of industrial wastewater, achieve excellent water quality, and restore urban water bodies.

Pending Publication Date: 2022-05-13
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a treatment system and treatment method for industrial wastewater to solve the problem of incomplete industrial wastewater treatment in the prior art

Method used

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  • Industrial wastewater treatment system and treatment method
  • Industrial wastewater treatment system and treatment method
  • Industrial wastewater treatment system and treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] This embodiment provides a kind of industrial wastewater treatment system, such as figure 1 As shown, the industrial wastewater treatment system includes a magnetic flocculation reactor 10, an active sand filter 20, a fiber ball filter 30, a primary ozone catalytic oxidation tower 40 and a secondary ozone catalytic oxidation tower 50 connected in sequence, wherein the magnetic flocculation The reactor 10 includes a coagulation tank and a flocculation tank connected to each other. The magnetic sludge outlet and the primary flocculation water outlet are arranged on the flocculation tank. The coagulation tank and the flocculation tank each have a feeding port, and the active sand filter 20 has an inlet for filtered water. and the first-level filtered water outlet, the inlet of the filtered water is connected with the first-level flocculation outlet through the pipeline; the fiber ball filter 30 has the first-level filtered water inlet and the filtered water outlet, and the ...

Embodiment 2

[0080] The difference between this example and Example 1 is that in the first catalyst used in step (4), the active component supported by spherical alumina is Cu.

Embodiment 3

[0081] Example 3 The difference between this example and Example 1 is that in the first catalyst used in step (4), the active component supported by spherical alumina is Fe.

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Abstract

The invention provides an industrial wastewater treatment system and method, and the treatment system comprises a magnetic flocculation unit, a filtering unit and a catalytic ozonation unit which are connected in sequence, the magnetic flocculation unit is used for removing inorganic pollutants in an ionic state and solid particles in a suspended state in industrial wastewater to obtain primary flocculation effluent and primary precipitates; the filtering unit is used for removing suspended solids and suspended flocs in the primary flocculation effluent to obtain filtered effluent; and the ozone catalytic oxidation unit is used for removing organic pollutants and ammonia nitrogen in filtered water. According to the technical scheme, the industrial wastewater II-level biochemical water is subjected to advanced treatment through the magnetic flocculation unit, the filtering unit and the catalytic ozonation unit in sequence, so that the treated effluent is excellent in quality and can reach the surface III-level water standard in China 'Environmental Quality Standard for Surface Water' (GB3838-2002).

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment system and method for industrial wastewater. Background technique [0002] With the increasingly prominent problem of water pollution in our country, the improvement of industrial wastewater treatment and discharge standards has become the general trend. After the existing industrial wastewater undergoes secondary biochemical treatment, although most of the suspended solids and organic matter are removed, and the COD concentration of the effluent is relatively low, it still has the characteristics of complex components, many characteristic pollutants, and poor biodegradability. This kind of water is discharged into the urban water body environment that basically has no self-purification ability, so that the urban water body is not only not repaired, but polluted. Therefore, it is urgently required to upgrade the industrial wastewater grade II biochemical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12C02F1/48C02F1/72C02F1/78C02F1/56C02F101/16C02F101/30
CPCC02F1/488C02F1/001C02F1/725C02F1/78C02F1/56C02F2101/16C02F2101/30C02F2301/08
Inventor 何文丽赵永志吴彩琼杨恒王彦芳赵金武警
Owner CHINA ENFI ENGINEERING CORPORATION