Multistage sedimentation tank of centralized treatment system for industrial wastewater

A technology for centralized treatment and industrial wastewater, which is used in water/sewage treatment, special compound water treatment, flotation water/sewage treatment, etc. It can solve the problem that the structural design of multi-stage sedimentation tanks is not ideal, and the sedimentation liquid cannot fully undergo flocculation reaction, etc. problems, to achieve the effect of easy cleaning and maintenance, ideal structural design, and prolonged residence time

Inactive Publication Date: 2018-06-19
魏发宝
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Problems solved by technology

[0003] The invention provides a multi-stage sedimentation tank of a centralized industrial wastewater treatment system, the main purpose of which is to overcome the shortcomings of the existing multi-stage sedimentation tank structure design is not ideal, the sedimentation liquid can not fully flocculate reaction, etc.

Method used

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  • Multistage sedimentation tank of centralized treatment system for industrial wastewater
  • Multistage sedimentation tank of centralized treatment system for industrial wastewater
  • Multistage sedimentation tank of centralized treatment system for industrial wastewater

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Embodiment Construction

[0021] The specific embodiment of the present invention is described below with reference to accompanying drawing, remark: among the accompanying drawings, the W line represents the sewage pipeline circuit; Among the accompanying drawings, the N line represents the sludge pipeline circuit.

[0022] Refer to attached figure 1 . A method for centralized treatment of industrial wastewater, in which foundry wastewater is sequentially processed through coarse filtration, first regulating tank 21, first grease separation tank 31 and first coagulation reaction sedimentation tank 41 to obtain first wastewater and first sludge The chromium-containing waste water is processed by coarse filtration, the second adjustment pond 22, the second grease separation pond 32 and the second coagulation reaction sedimentation pond 42 to obtain the second waste water and the second sludge, and then the first waste water After being re-concentrated with the second wastewater, it will be treated in tu...

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Abstract

A multistage sedimentation tank of a centralized treatment system for industrial wastewater comprises a primary sedimentation tank, a secondary sedimentation tank and an aid tank, wherein the aid tankis located between the primary sedimentation tank and the secondary sedimentation tank and communicated with the primary sedimentation tank and the secondary sedimentation tank, an aid partition board is arranged in the aid tank and divides the aid tank into a front aid chamber and a back aid chamber, a channel is reserved between the aid partition board and the aid tank, multiple guide partitionstrips are arranged on two side walls of the front aid chamber in the depth direction of the side walls at intervals, each guide partition strip is obliquely downward, and sludge in the primary sedimentation tank is sent back to a contact oxidation tank. The multistage sedimentation tank is ideal in structural design, the design of multiple guide partition strips is adopted, the stay time of a sedimentation liquid in the front aid chamber is prolonged, the flocculation reaction of the sedimentation liquid with a coagulant added to the front aid chamber is facilitated, and the acting effect ofthe coagulant added later cannot be affected.

Description

technical field [0001] The invention belongs to the field of industrial wastewater treatment, in particular to a multistage sedimentation tank of a centralized industrial wastewater treatment system. Background technique [0002] Industrial wastewater refers to the wastewater, sewage and waste liquid produced in the process of industrial production, which contains industrial production materials, intermediate products and products lost with water, as well as pollutants produced in the production process. With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly widespread and serious, threatening human health and safety. Therefore, for the protection of the environment, the treatment of industrial wastewater is more important than the treatment of urban sewage, especially wastewater containing chromium and die-casting wastewater. The structural design of the existing multi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F1/24C02F1/40C02F1/5236C02F1/56C02F1/66C02F1/725C02F3/30C02F2001/007C02F2305/026
Inventor 魏发宝
Owner 魏发宝
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