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Method for treating ultrahigh-concentration organic industrial wastewater

A technology of industrial waste water and treatment method, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, aerobic and anaerobic process treatment, etc., to achieve low operating cost, reduce COD concentration, and good treatment effect Effect

Active Publication Date: 2013-08-21
无锡金品环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing ultra-high concentration organic industrial wastewater treatment method and provide a method for ultra-high concentration organic industrial wastewater treatment

Method used

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  • Method for treating ultrahigh-concentration organic industrial wastewater
  • Method for treating ultrahigh-concentration organic industrial wastewater

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Embodiment 1

[0018] like figure 1 As shown, the process flow of the present invention is: grid filtration→high-efficiency catalytic oxidation reaction→high-efficiency anaerobic reaction→contact oxidation reaction→sedimentation in sedimentation tank→standard effluent discharge.

[0019] The detailed steps are:

[0020] (1) High-efficiency catalytic oxidation reaction. Under the action of the improved catalytic carrier and oxidant, organic impurity molecules in wastewater undergo high-density catalytic redox reaction and coagulation to degrade organic pollutants; It is carried out under the following conditions, the weight ratio of waste water to the improved catalytic carrier and oxidant is 10:2:1, the pH is 10, and the hydraulic retention time is 0.5h; the improved catalytic carrier includes the following components in weight ratio, TiO 2 50 parts, 10 parts of zeolite, 10 parts of shells, 10 parts of steel slag, 20 parts of cinder; the oxidizing agent includes the following weight ratio ...

Embodiment 2

[0024] A method for treating ultra-high concentration organic industrial wastewater, the steps are as follows,

[0025] (1) High-efficiency catalytic oxidation reaction. Under the action of the improved catalytic carrier and oxidant, organic impurity molecules in wastewater undergo high-density catalytic redox reaction and coagulation to degrade organic pollutants; Under the following conditions, the weight ratio of wastewater to the improved catalytic carrier and oxidant is 100:2:1, the pH is 5, and the hydraulic retention time is 2h; the improved catalytic carrier includes the following components in weight ratio, TiO 2 99 parts, 0.2 part of zeolite, 0.2 part of shell, 0.3 part of steel slag, 0.3 part of cinder; the oxidizing agent includes the following components in weight ratio, KMnO 4 30 parts, FeSO 4 40 parts, Na 2 o 2 30 servings.

[0026] (2) High-efficiency anaerobic reaction, the anaerobic reaction is carried out in the anaerobic reactor to realize the granu...

Embodiment 3

[0029] A method for treating ultra-high concentration organic industrial wastewater, the steps are as follows,

[0030] (1) High-efficiency catalytic oxidation reaction. Under the action of the improved catalytic carrier and oxidant, organic impurity molecules in wastewater undergo high-density catalytic redox reaction and coagulation to degrade organic pollutants; Under the following conditions, the weight ratio of wastewater to the improved catalytic carrier and oxidant is 55:2:1, the pH is 7.5, and the hydraulic retention time is 1h; the improved catalytic carrier includes the following components in weight ratio, TiO 2 75 parts, 5 parts of zeolite, 5 parts of shells, 5 parts of steel slag, 10 parts of coal slag; the oxidizing agent includes the following components by weight ratio, KMnO 4 40 parts, FeSO 4 30 parts, Na 2 o 2 30 servings.

[0031] (2) High-efficiency anaerobic reaction, the anaerobic reaction is carried out in the anaerobic reactor to realize the gra...

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Abstract

The invention discloses a method for treating ultrahigh-concentration organic industrial wastewater, which comprises the following steps of: (1) efficient catalytic oxidation reaction, wherein organic impurity molecules in the wastewater are subjected to high-density catalytic oxidation-reduction reaction and coagulation under the actions of an improved catalytic carrier and an oxidant so as to degrade organic pollutants; (2) efficient anaerobic reaction, namely performing the anaerobic reaction in an anaerobic reactor to realize granulation of sludge; and (3) contact oxidation reaction, namely putting a film hanging medium into a contact oxidation tank, and soaking the film hanging medium into the wastewater, wherein the organic substances in the wastewater are adsorbed on a biological film on the surface of the film hanging medium and decomposed and oxidized by aerobic microbes. The chemical oxygen demand (COD) concentration in the wastewater is reduced by using the efficient catalytic oxidation, the biochemical property of the wastewater is improved, pollution substances such as the organic substances and the like in the wastewater are swallowed by the microbes, and the purposeof standard-reaching discharge of the wastewater is fulfilled. Proved by practice, the method has the characteristics of good treatment effect, low operating cost and the like, and can be widely applied in various ultrahigh-concentration wastewater treatment projects.

Description

technical field [0001] The invention relates to a wastewater treatment method, in particular to an organic industrial wastewater treatment method. Background technique [0002] At present, ultra-high-concentration organic industrial wastewater contains ultra-high-concentration organic matter, the COD concentration is about 100,000 mg / L, and contains a large amount of toxic substances. It has the characteristics of low dissolved oxygen and extremely poor biodegradability. A difficult problem in engineering that needs to be overcome urgently. In order to solve the problem of ultra-high concentration organic industrial wastewater polluting the environment, it is urgent to develop an efficient and low-cost process technology suitable for this type of wastewater treatment. [0003] At present, the commonly used methods for the treatment of ultra-high concentration organic industrial wastewater are solvent extraction, membrane separation technology, incineration, and adsorption. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/30
Inventor 詹旭吴基生吴迪
Owner 无锡金品环境技术有限公司
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