A manganese-loaded heterogeneous catalyst and a water treatment method for producing highly active pentavalent manganese by using it to catalyze ozone

A heterogeneous catalyst, high activity technology, applied in the direction of oxidized water/sewage treatment, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as difficult to reuse, secondary pollution of manganese ions, etc., and achieve improved treatment effect , good processing effect

Active Publication Date: 2011-11-30
哈尔滨工业大学高新技术开发总公司
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing homogeneous oxidant pentavalent manganese has secondary pollution of manganese ions in the process of oxidation and decontami

Method used

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  • A manganese-loaded heterogeneous catalyst and a water treatment method for producing highly active pentavalent manganese by using it to catalyze ozone
  • A manganese-loaded heterogeneous catalyst and a water treatment method for producing highly active pentavalent manganese by using it to catalyze ozone
  • A manganese-loaded heterogeneous catalyst and a water treatment method for producing highly active pentavalent manganese by using it to catalyze ozone

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specific Embodiment approach 1

[0016] Embodiment 1: This embodiment is a manganese-loaded heterogeneous catalyst, which is loaded on activated carbon by compounding divalent manganese ions and complexing agents, and is prepared by the following steps: 1. Combining divalent manganese ions and complexing agents Agent is added in water and is mixed with mixed solution, wherein the mol ratio of divalent manganese ion and complexing agent is 1: 1~50 in the mixed solution, and the concentration of divalent manganese ion is 0.1~100mmol / L; Two, to the mixing of step 1 Add activated carbon into the solution, soak the activated carbon for 1 to 24 hours, then filter, and then wash to obtain activated carbon loaded with complexed divalent manganese ions, that is, a manganese-loaded heterogeneous catalyst, and complete the preparation of the manganese-loaded heterogeneous catalyst; wherein step 2 The ratio of the molar weight of divalent manganese ions in the mixed solution to the mass of activated carbon is controlled t...

specific Embodiment approach 2

[0018] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the molar ratio of divalent manganese ions to complexing agent in the mixed solution in step 1 is 1:5-40. Other parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0019] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the molar ratio of divalent manganese ions to complexing agent in the mixed solution in step 1 is 1:10-30. Other parameters are the same as in the first embodiment.

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Abstract

The invention discloses a manganese-loaded multiphase catalyst, and a water treatment method for producing high-activity quinquevalent manganese by catalyzing ozone through the manganese-loaded multiphase catalyst, relates to the catalyst for the water treatment and a treatment method of the catalyst, and solves the problems that secondary pollution of manganese ions exists and the manganese ionsare hardly recycled in the oxidation pollution elimination process of the conventional homogeneous phase oxidizing agent quinquevalent manganese. Divalent manganese ions and a complexing agent are loaded to activated carbon to form the catalyst; water to be treated is introduced into a reactor filled with the catalyst, and ozone is introduced into the reactor for oxidation treatment. The divalentmanganese ions in the catalyst are fixed to the activated carbon, and the quinquevalent manganese oxidizing agent produced in the process for treating water by catalyzing the ozone through the divalent manganese ions does not flow away with the water body, secondary pollution of manganese ions is avoided, and the manganese ions can be recycled. The in-situ formed quinquevalent manganese has high oxidation capacity; the speed of reacting the quinquevalent manganese and organic matter is high, so the quinquevalent manganese can quickly oxidize and degrade organic pollutant and a toxic and harmful byproduct is avoided. Compared with a method for performing oxidization by only using ozone, the method has the advantages that the treatment effect is improved by 50 to 80 percent.

Description

technical field [0001] The invention relates to a catalyst used in a water treatment method and a treatment method thereof. Background technique [0002] Highly active intermediate pentavalent manganese has the advantages of strong oxidation ability, fast reaction with organic matter, rapid oxidation and degradation of organic pollutants, and no toxic and harmful by-products. However, as a homogeneous oxidant, pentavalent manganese has the problem of secondary pollution of manganese ions and difficulty in reutilization in the process of oxidizing and decontaminating. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the existing homogeneous oxidant pentavalent manganese has secondary pollution of manganese ions in the process of oxidation and decontamination, and it is difficult to reuse. The present invention provides a manganese-loaded heterogeneous catalyst and its catalytic Ozone produces a water treatment method with...

Claims

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Application Information

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IPC IPC(8): B01J23/34C02F1/72
Inventor 江进庞素艳马军朱君涛
Owner 哈尔滨工业大学高新技术开发总公司
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