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Industrial wastewater comprehensive treatment system and technique

A technology for comprehensive treatment of industrial wastewater, applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, osmosis/dialysis water/sewage treatment, etc. It can solve the problems that industrial wastewater cannot meet drinking water quality standards, etc. Achieve low management and operating costs, low operating costs, and low sensitivity

Active Publication Date: 2014-09-17
SUZHOU DIHILL GREEN TECH
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Problems solved by technology

[0010] Moreover, the existing industrial wastewater treatment is based on comprehensive or removal of pollutants in wastewater, and the treated industrial wastewater cannot meet drinking water quality standards

Method used

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  • Industrial wastewater comprehensive treatment system and technique
  • Industrial wastewater comprehensive treatment system and technique
  • Industrial wastewater comprehensive treatment system and technique

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Embodiment Construction

[0035] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0036] The technical scheme of concrete implementation of the present invention is:

[0037] Such as figure 1 As shown, the present invention provides a comprehensive industrial wastewater treatment system, including a front-end filter device 1 connected in sequence, a front-end grease collector 2, a central water treatment device 3, a rear-end COD improvement device 4, and a rear-end water purification device 5;

[0038] The front-end filter device 1 has a filter accuracy of 1-10 μm, and separates large solid wastes in the liquid;

[0039] The front-end grease collector 2 is used to degrease the floating oil in the liquid through oil floating treatment o...

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Abstract

The invention provides an industrial wastewater comprehensive treatment system which comprises a front-end filter unit, a front-end grease collector, a central water treatment device, a back-end COD (chemical oxygen demand) improvement device and a back-end water purifier which are sequentially connected. The invention also provides an industrial wastewater comprehensive treatment technique of the treatment system. The system and technique can extract water in the industrial wastewater and leave over pollutants, so that the treated industrial wastewater can reach the water quality standard for drinking water; and the system adopts the pure physical separation technique, does not need any chemical reagent, can not cause secondary pollution, has low sensitivity for the components of the fluid to be treated, and does not need to greatly adjust the technique and equipment system due to the component difference of the treated fluid.

Description

technical field [0001] The invention relates to an industrial waste water comprehensive treatment system and process. Background technique [0002] Mechanical cutting is an important means and basic condition of modern manufacturing, but the cutting process will produce a lot of pollutants, the main pollutant is cutting waste liquid. Cutting waste fluid contains mineral oil and additives containing sulfur, phosphorus, chlorine, etc., which is harmful to the environment. Untreated cutting fluid discharged into water will cause serious pollution. Usually in the untreated cutting fluid, the oil content is up to 1500mg / L, the COD is up to 18000mg / L, and the BOD is up to 9300mg / L. In addition, it also contains a large amount of sodium nitrite, triethanolamine and other buffer corrosion agents and surfactants. [0003] The existence of oil in oily wastewater from mechanical processing is divided into four categories: free oil, finely dispersed oil, emulsified oil and dissolved o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F1/44
Inventor 顾明华王洁高鹏焦贯伟马志远王德军
Owner SUZHOU DIHILL GREEN TECH
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