Device and method for treating oily wastewater by pulse aeration membrane technology
A technical treatment and aeration membrane technology, which is applied in the field of devices for the treatment of oily wastewater with pulse aeration membrane technology, can solve the problems of limited industrial application, difficult cleaning, and high membrane cost, save economic costs, reduce energy consumption, cost saving effect
Inactive Publication Date: 2020-11-10
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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Problems solved by technology
[0003] In the field of environmental applications, ceramic membrane filtration technology is in the stage of rapid popularization, but there are still characteristics of high membrane cost, difficult cleaning, easy fouling, and high energy consumption, which greatly limit its industrial application.
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[0028] The present invention will be described in detail below in combination with specific embodiments.
[0029] The invention relates to a device for treating oily wastewater by pulse aeration membrane technology. The device includes a water inlet system, an aeration system and a static pressure filter system, and the static pressure filter system includes ceramic membrane components. The water inlet system is connected to the bottom of the ceramic membrane module to introduce wastewater, and the aeration system is located directly below the ceramic membrane module to input ozone and oxygen. The ceramic membrane module includes multiple flat ceramic membranes arranged in parallel. Ozone catalyst to degrade oily substances in wastewater.
[0030] The water inlet system includes a water inlet tank and a water inlet pump, and the water inlet pipe is led out of the water inlet tank, and connected to the static pressure filtration system through the water inlet pump.
[0031] Th...
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Abstract
The invention relates to a device and a method for treating oily wastewater by a pulse aeration membrane technology. Wastewater is introduced into a static pressure filtration system through a water inlet system; oxygen and ozone are input into the static pressure filtering system through the aeration system in a pulse aeration mode; and the static pressure filtration system oxidizes oil substances in the wastewater through the combined action of an ozone catalyst loaded on a flat ceramic membrane in the ceramic membrane assembly, input oxygen and ozone. By adopting the pulse aeration mode, blockage of the membrane can be relieved to a great extent, and the service life of the membrane is prolonged; a static pressure water outlet mode is adopted, so that the energy consumption is reduced,and the economic cost is saved, wherein concentrated water generated by filtering can be subjected to resource recovery, so that resource utilization is realized; in addition, through a coupling pulseaeration membrane filtration mode, the possibility of the pulse aeration membrane filtration process in wastewater treatment application is further improved.
Description
technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a device and method for treating oily wastewater by pulse aeration membrane technology. Background technique [0002] Ceramic membrane is a strategic emerging industry of the country, which has been widely used in many fields, including food industry, petrochemical industry, metallurgical industry, biological engineering, environmental engineering, chemical engineering and other fields. Its industrial development and market sales have increased by 35% annually rate growth. The ceramic membrane industry is an important part of the entire membrane industry, accounting for about 20% of the entire membrane market worldwide. [0003] In the field of environmental applications, ceramic membrane filtration technology is in the stage of rapid popularization, but there are still characteristics of high membrane cost, difficult cleaning, easy fouling, and high energy consumpt...
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IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/001C02F1/725C02F1/74C02F1/727C02F1/40C02F1/44
Inventor 陈作云周文哲张东海杨柯瑶杨梦琳
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP