Ozone heterogeneous catalytic oxidation moving bed reactor and refractory wastewater treating method therefor

A moving bed reactor, heterogeneous catalysis technology, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sludge/sewage treatment, etc., can solve difficult operation, less research on ozone catalytic oxidation equipment, etc. problems, to achieve good water quality conditions, reduce secondary pollution, and reduce the effect of requirements

Inactive Publication Date: 2015-10-21
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the ozone reactor needs to be sealed to prevent ozone leakage, air washing, water washing and backwashing will bring more operation

Method used

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  • Ozone heterogeneous catalytic oxidation moving bed reactor and refractory wastewater treating method therefor

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Example Embodiment

[0019] Example 1

[0020] The ozone heterogeneous catalytic oxidation moving bed reactor designed in the present invention includes a water inlet system, an ozone generating system 2, a catalytic oxidation reaction system, a gas recovery system, a catalyst cleaning system and a water outlet system; the catalytic oxidation reaction system includes a reaction system Reactor 31 and catalyst 32; the catalyst cleaning system contains an air stripper 51, a material extraction pipe 52, a blanking port 53, a washing waste water discharge pipe 54 and a catalyst cleaning chamber 55; the catalyst cleaning chamber 55 consists of the reactor 31 The top center is recessed, and the bottom center opening forms a blanking port 53. The bottom of the left side is provided with a washing waste water discharge pipe 54 passing through the reactor 31; the lifting pipe 52 extends from the blanking port 53 into the reaction Inside the vessel 31, there are a water distributor 12, a baffle 13 and an air st...

Example Embodiment

[0021] Example 2

[0022] The ozone heterogeneous catalytic oxidation moving bed reactor designed in the present invention includes a water inlet system, an ozone generation system 2, a catalytic oxidation reaction system, a gas recovery system, a catalyst cleaning system and a water outlet system; the catalytic oxidation reaction system includes a reaction system Reactor 31 and catalyst 32; the catalyst cleaning system contains an air stripper 51, a material extraction pipe 52, a blanking port 53, a washing waste water discharge pipe 54 and a catalyst cleaning chamber 55; the catalyst cleaning chamber 55 consists of the reactor 31 The top center is recessed, and the bottom center opening forms a blanking port 53. The bottom of the left side is provided with a washing waste water discharge pipe 54 passing through the reactor 31; the lifting pipe 52 extends from the blanking port 53 into the reaction Inside the vessel 31, there are a water distributor 12, a baffle 13 and an air st...

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Abstract

The present invention relates to an ozone heterogeneous catalytic oxidation moving bed reactor and a refractory wastewater treating method therefor. The reactor consists of a water inlet system, an ozone generating system, a catalytic oxidation reaction system, a gas recovery system, a catalyst washing system and a water outlet system. The catalytic oxidation reaction system comprises a reactor and a catalyst. The catalyst washing system comprises a stripper, a feed pipe, a blanking outlet, a washing wastewater discharging pipe and a catalyst cleaning chamber. The water inlet system consists of a water inlet pipe and a water distributor. The water outlet system consists of a water outlet slot and a water outlet pipe. The gas recovery system consists of a three-phase separator, a gas collection chamber, a gas collecting pipe and a gas breaker. In comparison with the prior art, the moving bed reactor provided by the present invention is less in occupied area, low in investment and operating cost, good in treatment effect, and convenient in operational management, and is capable of greatly improving the biodegradability of refractory wastewater, providing a good water condition for the follow-up biological treatment and in addition removing 40% of organic substances.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an ozone heterogeneous catalytic oxidation moving bed reactor and a method for treating refractory wastewater. Background technique [0002] With the rapid growth of my country's economy and the rapid development of industry, the amount of wastewater brought by industrial production is increasing year by year. At the same time, people's awareness of environmental protection has gradually increased, and the discharge indicators of various pollutants have become increasingly stringent. There are a large amount of refractory organic matter and toxic and harmful substances in industrial wastewater, and it is difficult to make them reach the standard stably by ordinary biochemical methods. At present, the advanced catalytic oxidation method is widely used in the treatment of toxic, harmful and refractory wastewater. Among them, the ozone catalytic oxidation t...

Claims

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Application Information

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IPC IPC(8): C02F1/78C02F101/30
Inventor 王焕升宋英豪王敏贾立敏崔志峰徐晶苏本生白亚凤
Owner BEIJING UNIV OF CHEM TECH
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