A reverse osmosis sewage treatment equipment based on MBR process

By setting up a bioreaction membrane and a reverse osmosis membrane in the reverse osmosis sewage treatment equipment and using the air extraction mechanism to increase the pressure difference between the membranes, the problem of low filtration efficiency in the prior art is solved, and more efficient sewage treatment and lower maintenance costs are achieved.

CN116924560BActive Publication Date: 2025-03-25XINJIANG PROD & CONSTR CORPS CONSTR ENG (GRP) ENVIRONMENTAL ENG CO LTD
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Patent Information

Application Number
CN202311144895.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-06
Publication Date
2025-03-25
Estimated Expiration
2043-09-06

AI Technical Summary

Technical Problem

In the prior art, the container size of the reverse osmosis membrane filter is effective, resulting in limited applied pressure and low filtration efficiency, and the inability to effectively increase the pressure difference to improve the filtration efficiency.

Method used

A reverse osmosis sewage treatment equipment based on MBR process is designed. The bioreactive membrane and the reverse osmosis membrane are separated in the tank by setting up two sets of fixing parts, and the air in the negative pressure chamber is used to pump air into the high-pressure chamber to increase the front membrane pressure and reduce the back membrane pressure, thereby increasing the pressure difference between the two sides of the reverse osmosis membrane.

Benefits of technology

By increasing the pressure difference of the reverse osmosis membrane, the passing speed of water molecules and the flux of the reverse osmosis membrane are significantly improved, the filtration stability is enhanced, maintenance costs are reduced, and impurity removal effect is improved.

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Abstract

The present invention discloses a reverse osmosis sewage treatment equipment based on MBR process, which relates to the technical field of sewage treatment, including a tank body, a separation cylinder fixedly arranged on the tank body, the tank body is connected with the separation cylinder, a separation wheel is provided in the separation cylinder for sealing and rotating, two groups of fixing parts are provided in the tank body, a biological reaction membrane is provided on the fixing part located at the top, and a reverse osmosis membrane is provided on the fixing part located at the bottom, and the two groups of fixing parts divide the tank body into a high-pressure chamber, a filter chamber and a negative pressure chamber from top to bottom in sequence; a plurality of suction mechanisms are evenly distributed on the outer wall of the tank body, and a control ring for driving the suction mechanism is provided for rotating outside the tank body. The present invention provides a suction mechanism to draw air below the reverse osmosis membrane into the upper part of the reverse osmosis membrane, thereby increasing the pressure in front of the membrane and reducing the pressure behind the membrane, thereby increasing the pressure difference on both sides of the reverse osmosis membrane and improving the sewage treatment efficiency.
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