Ceramic membrane aeration and micro-positive pressure ozone membrane regeneration water treatment method and treatment device

A treatment method and technology of a treatment device, which are applied in biological water/sewage treatment, oxidized water/sewage treatment, water/sewage treatment, etc., can solve the problems of low system operation efficiency, low ozone utilization rate, and high operation cost, and achieve the use of Longer life, improved filtration efficiency, high porosity effect

Pending Publication Date: 2017-11-10
JIANGXI BOCENT TEC CO LTD
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Problems solved by technology

[0005] In order to solve the problem that the flat ceramic membrane module in the prior art is easy to be fouled and frequently cleaned during

Method used

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  • Ceramic membrane aeration and micro-positive pressure ozone membrane regeneration water treatment method and treatment device

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Embodiment Construction

[0029] Such as figure 1 Among them, the water treatment device of the present invention includes a regulating tank 1, a pretreatment tank 2, a membrane tank 3, a water purification tank 4, an ozone generator 5 and an air compressor 6, and a submersible pump 11 is arranged in the regulating tank, and the regulating tank It is connected with the outlet pipe 12 of the regulating tank for the pretreatment tank. The pretreatment tank is provided with a nano-ceramic membrane aeration diaphragm 21. A membrane module 34 is arranged in the membrane tank, and an aeration pipe 32 is arranged at the lower part of the membrane module. The tube is connected to the Roots fan 31 (or its centrifugal fan), the pretreatment tank is connected to the membrane tank with the pretreatment tank outlet pipe 22, the ozone generator is connected to the ozone outlet pipe 51, and the ozone outlet pipe passes through the ozone aeration solenoid valve 52 and the ozone film washing electromagnetic valve 55 ar...

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Abstract

The invention discloses a ceramic membrane aeration and micro-positive pressure ozone membrane regeneration water treatment method. Sewage after ozone micropore aeration treatment is conveyed into a membrane tank; when a membrane on a membrane module is blocked by microorganisms or organic matter, compressed air enters the membrane of the membrane module through a water outlet of the membrane module for high-pressure back flushing; contaminants attached to the surface of the membrane are separated from the surface of the membrane; after the back flushing of the compressed air, ozone is supplied to the membrane of the membrane module under critical micro-positive pressure; after a gel layer difficult to degrade on the surface of the membrane is decomposed and dissolved by using an ozone and air space, the compressed air is used for reverse purging of decomposed substances on the membrane to accomplish membrane flushing; a nano ceramic membrane with small pore size distribution, small transmembrane pressure and a very small pore size is used for aeration; the micro-positive pressure aeration is adopted to form many fine and uniform oxygen bubbles to make full use of an oxygen source; oxygen is better dissolved in water; a utilization rate of the oxygen is increased; a biochemical effect is enhanced; and the energy source waste is reduced.

Description

technical field [0001] The invention relates to a water treatment method and a water treatment device, in particular to a water treatment method and a treatment device for membrane regeneration by ceramic membrane aeration and critical micro positive pressure ozone. Background technique [0002] As a new type of high-efficiency sewage treatment technology, ceramic flat membrane bioreactor has become an indispensable treatment in the treatment of domestic sewage, industrial wastewater (especially wastewater containing aromatic hydrocarbons) and extreme environmental wastewater (such as slaughtering and breeding wastewater, etc.) technology. [0003] Flat ceramic membranes have become the core components of sewage treatment devices, and have achieved good results in practical applications. However, during the filtration operation of the system, because organic and inorganic substances are adsorbed on the surface of the membrane, especially bacteria and microbial metabolites a...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F9/04C02F9/06C02F101/30
CPCC02F9/00C02F1/24C02F1/40C02F1/283C02F1/461C02F1/44C02F1/52C02F1/001C02F2303/14C02F2303/16C02F2209/005C02F2101/30C02F1/78C02F3/1236
Inventor 龙日军吴汉阳
Owner JIANGXI BOCENT TEC CO LTD
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