Double-MBR-method sewage treatment process combined with ozone oxidation

A technology for ozone oxidation and sewage treatment, applied in the direction of oxidation water/sewage treatment, biological water/sewage treatment, flotation water/sewage treatment, etc., can solve the problems of large ozone dosage and high operating costs, and achieve investment and operation Low cost, low operating cost, and the effect of reducing membrane pollution

Inactive Publication Date: 2020-05-08
SHANGHAI SUPRATEC MEMBRANE TECH CO LTD +1
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This process has the disadvantages of larg

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  • Double-MBR-method sewage treatment process combined with ozone oxidation
  • Double-MBR-method sewage treatment process combined with ozone oxidation
  • Double-MBR-method sewage treatment process combined with ozone oxidation

Examples

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Embodiment 1

[0048] Example 1: A textile printing and dyeing wastewater treatment plant has a daily treatment capacity of 5000m3 / d, and the design water quality of the plant is shown in Table 1.

[0049] Table 1 Design Influent Water Quality Table

[0050]

[0051] refer to figure 1 , the present invention firstly provides a sewage treatment device, comprising a water inlet system 1, a pretreatment system 2, a biochemical pool 3, a primary MBR membrane pool 4, an ozone oxidation pool 5, a secondary MBR membrane pool 6, a clean water pool 7, Water outlet system 8 , mixed liquid return system 9 , aeration system 10 , ozone generator 11 , and sludge treatment system 12 . Among them, the biochemical pool 3, the first-level MBR membrane pool 4 and the second-level MBR membrane pool are respectively connected to the aeration system 10 and the sludge treatment system 12, and the mixed liquid reflux is set between the biochemical pool 3 and the first-level MBR membrane pool 4 system9.

[005...

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Abstract

The invention provides a double-MBR- method sewage treatment process combined with ozone oxidation. The process comprises the steps of pretreatment, biochemical treatment, primary MBR method treatment, ozone oxidation treatment, secondary MBR method treatment and filtration to obtain water meeting the emission standard, the process can reduce the addition amount of conventional ozone, reduce the generation of sludge, improve the degradation rate of degradation-resistant substances, has a wide application range and has process practicability.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a double MBR sewage treatment process combined with ozone oxidation. [0002] technical background [0003] In recent years, with the rapid development of industry, the types and output of organic compounds have also been increasing. The discharge of various industrial wastewater continues to threaten water bodies. The deterioration of water sources is becoming more and more extensive and serious. The protection of water resources is imminent. [0004] MBR (Membrane Bio-Reactor, membrane bioreactor) technology is a new type of water treatment technology. It combines the traditional activated sludge method with membrane separation technology, relying on the latter's high-efficiency solid-liquid separation to replace the secondary settling tank in the traditional process, realize the separation of mud and water, and also replace the advanced treatment process after the secondary sett...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/24C02F1/78C02F3/1205C02F3/121C02F3/34C02F9/00C02F2001/007C02F2301/08
Inventor 白海龙万明辉茹岩坤张显超
Owner SHANGHAI SUPRATEC MEMBRANE TECH CO LTD
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