Method for reducing COD (chemical oxygen demand) of phenolic wastewater by using sodium permanganate

A technology for sodium permanganate and phenol wastewater, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of high energy consumption and treatment costs, achieve fast treatment speed, no secondary pollution, The effect of reducing the COD value

Inactive Publication Date: 2013-03-06
TIANJIN BINHUAN CHEM ENG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is only suitable for the advanced treatment of low-concentration phenol-...

Method used

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Embodiment 1

[0019] A kind of method adopting sodium permanganate to reduce the COD of phenolic wastewater, the steps are as follows:

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Abstract

The invention relates to a method for reducing COD (chemical oxygen demand) of phenolic wastewater by using sodium permanganate. The method comprises the following steps of adding solution of sodium permanganate into the phenolic wastewater, stirring the solution, standing the solution, filtering the solution, taking the filtrate, and detecting the value of the COD. In the method, the sodium permanganate is used for treating the phenolic wastewater for the first time, the chrominance of the solution can be obviously reduced, the method has the advantages of high treatment speed, no secondary pollution and the like, phenolic and chlorobenzene organics in the wastewater can be better removed, the COD value of the wastewater can be effectively reduced, and a treatment device is simple, relatively low in cost and suitable for treating the phenolic wastewater.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a method for reducing COD of phenol-containing wastewater by using sodium permanganate. Background technique [0002] With the development of the world economy and the process of urbanization, the demand for water is constantly increasing, and the discharge of wastewater is also increasing. The pollution of phenolic wastewater to water bodies has caused domestic and foreign social circles widespread attention. [0003] Phenolic compounds are a kind of protoplasmic poison, which can be inhaled through skin and mucous membrane contact or immersed in the organism through the mouth, and form insoluble protein after contacting with the protein in the cell original plasma to inactivate the cell, especially for the nervous system. Larger affinity can cause nervous system lesions. Phenol-containing wastewater also has a serious impact on aquatic organisms. The toxicity of phenol can gre...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/66C02F101/34
Inventor 罗坚陈明玉杨智王磊
Owner TIANJIN BINHUAN CHEM ENG TECH RES INST
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