Process and apparatus for treating petrochemical sewage by coupling ozone oxidation in aerating biological filtering pool

A biological aerated filter and ozone oxidation technology, applied in the direction of sustainable biological treatment, oxidized water/sewage treatment, aerobic process treatment, etc. The effect of quality speed improvement

Inactive Publication Date: 2006-06-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of complex process and high treatment cost caused by biological and advanced oxidation in

Method used

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  • Process and apparatus for treating petrochemical sewage by coupling ozone oxidation in aerating biological filtering pool
  • Process and apparatus for treating petrochemical sewage by coupling ozone oxidation in aerating biological filtering pool
  • Process and apparatus for treating petrochemical sewage by coupling ozone oxidation in aerating biological filtering pool

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Pretreatment of high-concentration oil refining wastewater (alkali water and alkali residue).

[0036] Such as figure 1 As shown, the device for biological aerated filter coupled with ozone oxidation treatment of petrochemical sewage includes a biological filter treatment device and an ozone oxidation treatment device, the biological filter treatment device includes a packing layer 12, and the ozone oxidation treatment device includes an ozone inlet device and an air inlet device, the ozone oxidation treatment device is isolated from the biological filter treatment device around, and its upper end and lower end are respectively connected to the isolation aeration cylinder 15 of the biological filter treatment device. The air inlet device is formed by connecting the aeration head 3, the aeration pipe 10 and the external air pipe 9. The aeration head 3 is located at the lower part of the isolated aeration cylinder 15, and is connected with the aeration pipe 10, and the a...

Embodiment 2

[0043] Advanced treatment and reuse of lightly polluted water. The device used for biological aerated filter coupled with ozone oxidation treatment of petrochemical sewage is as follows: figure 1 Shown, its structure is identical with embodiment 1.

[0044] When using the device, lightly polluted water (low-concentration sewage) is pumped from the sewage inlet 11 into the filler layer 12 of the biological oxidation zone, and contacts with the microorganisms on the surface of the filler for filtration and preliminary biological oxidation treatment; after filtration and preliminary biological oxidation treatment The sewage enters into the isolated aeration tank 15 which communicates with the lower part of the biological oxidation zone and has an ozone and air inlet device through the riprap layer 2 and the porous support plate 18. At this time, the air enters the isolation aeration cylinder 15 from the aeration pipe 10 through the aeration head 3 through the air compressor, and...

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Abstract

An apparatus for treating the petrochemical sewage by aerating, bio-filtering and ozone oxidizing is composed of bio-filtering pool and ozone oxidizing unit. Its method includes such steps as primary bio-filtering, biologic oxidizing, aerating for filling oxygen, ozone oxidizing, and bio-filtering to form a treating circulation.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a method and device for treating organic sewage in petrochemical enterprises with a biological oxidation coupling ozone oxidation process, specifically coupling the biological aerated filter process and the ozone oxidation process of sewage into a reaction device Realize sewage treatment. Background technique [0002] my country is a country that lacks water resources. The per capita water resources are 2,500 cubic meters, which is one-fifth of the world's average level. The urban water shortage is becoming more and more serious, and more than 300 cities are seriously short of water. my country's annual discharge of industrial sewage is about 21 billion cubic meters, of which the treatment rate is less than 80%, the compliance rate is less than 60%, the industrial water reuse rate is less than 30%, and water treatment and water utilization technologies have not reached the middle ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/78C02F3/02
CPCY02W10/10
Inventor 钟理陈建军
Owner SOUTH CHINA UNIV OF TECH
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