Integrated ozone coupled ceramic membrane type MBR (membrane bioreactor) and treatment process

A technology of membrane bioreactor and treatment process, applied in biological water/sewage treatment, anaerobic digestion treatment, oxidized water/sewage treatment, etc. Can not meet the discharge standards and other problems, to achieve the effect of strengthening the denitrification function, avoiding sludge loss, and improving biodegradability

Inactive Publication Date: 2017-10-24
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of cities and industries, water quality is becoming more and more complex, and the original secondary treatment is difficult to meet the first-class A standard for sewage discharge
Most of the secondary effluent of muni

Method used

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  • Integrated ozone coupled ceramic membrane type MBR (membrane bioreactor) and treatment process
  • Integrated ozone coupled ceramic membrane type MBR (membrane bioreactor) and treatment process

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1:

[0022] Such as figure 1 , At this time, except for the stop valve (14) between the ceramic membrane module (6) and the backwash tank (5), the stop valve (14) is closed, the rest of the stop valves (14) are in open mode, and the water inlet pump (7) The sewage is input to the bottom of the ozonation reaction zone (1) for ozone reaction. After the reaction, the sewage flows from the top of the ozonation reaction zone to the anoxic reaction zone (2), and then flows from the bottom of the anoxic reaction zone (2) to the anaerobic reaction zone ( 3), such as figure 2 The top view of the reactor, the sewage after treatment in the anaerobic reaction zone (3) flows through the three-part aerobic ceramic membrane MBR (4) separated by plexiglass plates, and uses the life activities of microorganisms to degrade the pollution of organic matter, nitrogen and phosphorus. The ceramic membrane module (6) is located at the end of the aerobic zone. After the sewage is filtere...

Example Embodiment

[0023] Example 2:

[0024] At this time, except for the stop valve (14) between the ceramic membrane module (6) and the backwash water tank (5), the stop valve (14) is open, and the other water stop valves (14) are in closed mode, and the backwash water tank (5) is in the closed mode. The backwash water is used for backwashing of the ceramic membrane module (6), when the suction flow meter (20) on the ceramic membrane water production pipe section detects that the flow rate of the water is lower than 20L / m 2 When h, start the backwash system, only open the stop valve between the backwash water tank (5) and the ceramic membrane module (6), but the aeration device is still open, and the rest of the water inlet section, return section and sludge return section The stop valve (14) is closed, and the ozone generator (8) is also closed.

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Abstract

The invention aims to develop an efficient sewage deep treatment system according to the characteristics of secondary effluent quality of municipal wastewater to reduce pollution of sewage to the environment, increase the circulation utilization rate of water and create better environmental benefits, social benefits and economic benefits. According to an integrated ozone coupled ceramic membrane type MBR (membrane bioreactor) and treatment process, the system comprises an ozonization reaction zone (1), an anoxic reaction zone (2), an anaerobic reaction zone (3), aerobic ceramic membrane type MBRs (4), a backwashing water tank (5), a ceramic membrane assembly (6), a water inlet pump (7), an ozone generator (8), an oxygen bottle (9), a sludge reflux pump (10), an effluent pump (11), an air blower (12), gas flowmeters (13), water check valves (14), an electromagnetic valve (15), a tail gas treatment device (16), an inner reflux pump (17), a time controller (18), a sand core filter plate (19), a flowmeter (20), an electromagnetic valve (21) and a time controller (22). The reaction device and process mainly comprises an ozonization process, an anoxic-anaerobic-aerobic biological treatment process and a membrane filtration process. Ozonization is coupled with biological treatment and membrane filtration for treatment of secondary effluent of municipal wastewater, and macromolecular organic components, nitrogen, phosphorus and other pollutants which are difficult to degrade are effectively removed.

Description

Technical field [0001] The invention relates to the field of urban municipal sewage treatment, in particular to an ozone oxidation process coupled with a ceramic membrane bioreactor treatment system to treat the secondary effluent of municipal wastewater, which is of great significance to the deep purification of sewage and the reuse of reclaimed water. Background technique [0002] Water resources are basic natural resources, the total amount of water on the earth is 1.4 billion km 3 About, but only a quarter is fresh water, and most of them exist in Antarctica and Greenland. They remain frozen and unusable, so only 200,000 km 3 Fresh water is available for human use. my country has 7 percent of the world’s water resources, and the total amount of water resources ranks fourth, but my country is a populous country, and the per capita water resources are only a quarter of the world average, 2300m 3 , Located in the ranks of water scarce countries. With the acceleration of industri...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/44C02F1/78C02F3/1268C02F3/28C02F3/308C02F9/00
Inventor 邱立平宋茜茜邱琪卢立泉程仁振石亮王琰
Owner UNIV OF JINAN
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