Ozone catalytic oxidation reactor and sewage treatment method thereof

An ozone catalytic oxidation and reactor technology, which is applied in the directions of oxidized water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problem of poor cleaning effect of suspended solids, large amount of backwashing water, and affecting the reaction efficiency of sewage treatment. Catalyst service life and other issues, to achieve the effect of saving backwash water consumption, efficient backwashing, and small equipment footprint

Pending Publication Date: 2019-12-20
SHANGHAI LANKE PETROCHEM ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the reactor is equipped with a backwashing system, it requires a large amount of backwashing water; moreover, the effect of cleaning the suspended solids inside the catalyst bed is not good, which affects the reaction efficiency of sewage treatment and the service life of the catalyst

Method used

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  • Ozone catalytic oxidation reactor and sewage treatment method thereof
  • Ozone catalytic oxidation reactor and sewage treatment method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1 As shown, it is an ozone catalytic oxidation reactor, including a reactor body 1, and a sewage distributor 2, a sand filter layer 3, and a catalyst layer 4 are sequentially arranged in the reactor body 1 from top to bottom, and the catalyst layer 4 The lower side is also provided with an ozone aeration pan 5 and a backwash water inlet distributor 6; the sand filter layer 3 is provided with a backwash gas distributor 7; 30, for monitoring the resistance of the sand filter layer 3 (that is, the pressure difference);

[0055] The sewage distributor 2 is connected to a sewage water inlet pipe, and a sewage valve 20 and a sewage flow meter 21 are sequentially arranged on the sewage water inlet pipe along the water inlet direction, and a drainage pipe with a drainage valve 22 is also arranged at the bottom of the reactor body 1; The ozone aeration pan 5 is connected to the ozone generator 50 through an ozone pipeline, and an ozone tube valve 51 and an ozone ...

Embodiment 2

[0067] combine Figure 1~2 As shown, the present embodiment is a sewage treatment method of an ozone catalytic oxidation reactor, comprising the following treatment steps:

[0068] S1. The sewage to be treated is sent to the top of the reactor body 1, and evenly enters the reactor body 1 through the sewage distributor 2. The sewage is first filtered through the sand filter layer 12, and the suspended solids contained in the sewage are filtered and removed. The solid content of the final sewage is less than 10mg / l; the sewage continues to flow down to the catalyst layer 4, and is countercurrently mixed with the ozone gas flow flowing from the bottom of the reactor body 1 to the catalyst layer 4, and the ozone generates hydroxyl radicals under the action of the catalyst. Degrade the organic matter in the sewage, and the treated sewage is discharged from the drainage pipe at the bottom;

[0069] S2. As the running time increases, the suspended matter trapped in the sand filter l...

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Abstract

The invention discloses an ozone catalytic oxidation reactor. The ozone catalytic oxidation reactor comprises a sewage distributor, a sand filter layer and a catalyst layer which are arranged in a reactor body sequentially from top to bottom; an ozone aeration disk, and a backwash water inlet distributor are arranged on the lower side of the catalyst layer; a backwash gas distributor is arranged in the sand filter layer; the upper side and the lower side of the sand filter layer communicate with differential pressure gauges; the sewage distributor is connected with a sewage water inlet pipe; awater discharging pipeline is arranged on the lower part of the reactor body; the ozone aeration disk is connected with an ozone generator through an ozone pipeline; the backwash water inlet distributor is connected with a backwash water inlet pump through a backwash pipeline; the upper part of the reactor body is connected with a backwash water discharging pipe; the backwash gas distributor is connected with a backwash gas pipeline; and the top of the reactor body is connected with a tail gas discharging pipe. The reactor integrates filtering and ozone catalytic oxidation functions, and hasan efficient backwash regeneration function. Meanwhile, the invention also provides a sewage treatment method. By the sewage treatment method, the use amount of water for backwash can be reduced and the backwash regeneration efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and relates to an ozone catalytic oxidation reactor and a sewage treatment method thereof. Background technique [0002] In recent years, with the rapid development of my country's industry, the amount of sewage has been increasing. Sewage has the characteristics of many types of pollutants, complex components, high COD concentration, poor biodegradability, and high toxicity. If it is not treated in time, it will inevitably cause environmental pollution and ecological damage, which will seriously restrict my country's economic development. For this reason, the state continuously improves environmental protection standards and environmental requirements, especially the water quality requirements for treated sewage effluent, requiring COD to be less than 50mg / L and solid content to be less than 10mg / l. [0003] Ozone is extremely oxidizing, and its oxidation-reduction potential in water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
CPCC02F1/001C02F1/725C02F1/78C02F2201/78
Inventor 朱洪杨久利马洪玺
Owner SHANGHAI LANKE PETROCHEM ENG & TECH
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