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Water treatment method utilizing heterogeneous catalytic oxidation of permanganate

A heterogeneous catalysis and permanganate technology, applied in the field of water treatment, can solve the problems of low removal rate and slow reaction, and achieve the effect of avoiding excessively high total manganese concentration

Active Publication Date: 2015-06-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of slow reaction and low removal rate of some refractory organic substances (such as phenolic substances such as phenol) in the water treatment of the existing technical solutions, and to provide a method using permanganate heterogeneous catalysis Oxygenated water treatment methods

Method used

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  • Water treatment method utilizing heterogeneous catalytic oxidation of permanganate

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specific Embodiment approach 1

[0010] Specific embodiment one: the specific operation steps of a kind of water treatment method of permanganate heterogeneous catalytic oxidation in this specific embodiment are as follows:

[0011] 1. Add permanganate and carbon catalyst directly to the water to be treated to keep the contact time between permanganate and water to be treated at 0.1min to 300min, and the dosage of the permanganate is 0.01mg / L to 500mg / L; The mass ratio of carbon catalyst and permanganate is (0.1~100):1 to add carbon catalyst, and the water to be treated is water containing organic pollutants;

[0012] 2. Remove unreacted permanganate and carbon catalyst after coagulation, precipitation and filtration to obtain effluent and complete the water treatment process.

[0013] Wherein, the dosage of permanganate is 0.01mg / L-500mg / L, which means adding 0.01mg-500mg permanganate per liter of water.

specific Embodiment approach 2

[0014] Specific embodiment two: the difference between a kind of water treatment method of permanganate heterogeneous catalytic oxidation in this specific embodiment and specific embodiment one is that described carbon catalyst is graphite, activated carbon, coke, carbon black, bone char , carbon nanotubes, carbon fibers or a combination of several. The rest are the same as in the first embodiment.

specific Embodiment approach 3

[0015] Specific embodiment three: the difference between a kind of water treatment method of permanganate heterogeneous catalytic oxidation in this specific embodiment and specific embodiment one is that the described carbon catalyst is graphite, activated carbon, coke through activity enhancement treatment , carbon black, bone char, carbon nanotubes, carbon fiber or a combination of several. The rest are the same as in the first embodiment.

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Abstract

The invention relates to a water treatment method, particularly to a water treatment method utilizing heterogeneous catalytic oxidation of permanganate, and aims to solve the problem in the scheme provided by the prior art, when water is treated, nondegradable organic materials such as phenyl hydroxide react slowly, and the removal ratio is low. The water treatment method is characterized in that during water treatment, permanganate and a carbon catalyst are added in water to be treated to carry out heterogeneous catalytic oxidation of permanganate, and the permanganate and the carbon catalyst are removed through coagulation, sedimentation and filtering, so as to obtain output water and complete the water treatment process. The water treatment method has the advantages that nondegradable organic materials such as phenyl hydroxide react quickly, and the removal ratio is high, particularly, the removal ratio can reach 100% after the reaction lasts for 40 min. the method provided by the invention is used for treating water containing organic pollutants.

Description

technical field [0001] The invention relates to a water treatment method, in particular to a water treatment method utilizing permanganate heterogeneous catalytic oxidation. Background technique [0002] In recent years, industrial and agricultural production and life discharge a large amount of pollutants, exceeding the environmental capacity of water bodies, making the pollution of surface water and groundwater increasingly serious. Micro-pollutants such as endocrine disrupting compounds (EDCs), pharmaceuticals and personal care products (PPCPs), algal toxins, and odorous substances in water pose a major threat to drinking water safety. Permanganate has its own advantages. It has good effects in the fields of controlling algae toxins, chlorination disinfection by-products, deodorization, decolorization and control of iron and manganese. It is also effective in removing trace organic pollutants in water and controlling chlorination. Research on disinfection by-products and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/72
Inventor 马军赵晓丹肖佳月刘玉蕾吕东伟
Owner HARBIN INST OF TECH
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