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Ozone-bacteria filter system for advanced treatment of hardly-degradable organic wastewater

A biofilter and organic wastewater technology, applied in the direction of sustainable biological treatment, biological water/sewage treatment, adsorption water/sewage treatment, etc. Breakage and other problems, to prevent secondary pollution, increase the effective contact area, improve the liquid phase spray density and uniformity

Inactive Publication Date: 2009-09-23
TONGJI UNIV +1
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Problems solved by technology

Therefore, the current ozone-biological activated carbon technology still has shortcomings such as low ozone absorption rate (existing tail gas pollution), biofilter effluent still contains new colloidal substances, large water consumption for filter recoil, and activated carbon is easily damaged and lost. Further application of the technology

Method used

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  • Ozone-bacteria filter system for advanced treatment of hardly-degradable organic wastewater
  • Ozone-bacteria filter system for advanced treatment of hardly-degradable organic wastewater
  • Ozone-bacteria filter system for advanced treatment of hardly-degradable organic wastewater

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Embodiment Construction

[0027] see figure 1 .

[0028] The present invention is composed of an ozone contact reactor 2, an ozone generator 20, an ozone tail gas destruction device 22, a biofilter 7, a blower 19, a backwash water pump 15 and a clear water pool 16. The gas source of the ozone generator 20 can adopt air or oxygen. When an air source ozone generator is used, pretreatment measures such as purification, degreasing and cold drying must be set before the air enters the ozone generator 20 . The ozone generator 20 is connected with the ozone contact reactor 2, and the ozone is sent into the ozone contact reactor 2 to react with the refractory organic wastewater entering. The top of the ozone contact reactor 2 is connected with the ozone tail gas destruction device 22 through a pipeline, and the remaining Ozone absorption. The ozone tail gas destroying device 22 all adopts anti-ozone corrosion materials, and various types of ozone absorbing and destroying devices such as activated carbon ads...

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Abstract

The invention provides an ozone-bacteria filter system for advanced treatment of hardly-degradable organic wastewater, relating to a device for advanced treatment of the wastewater. The ozone-bacteria filter system comprises an ozone contact reactor (2), an ozone generator (20), a bacteria filter (7), a blast blower (19) and a backwash water pump (15), wherein the ozone contact reactor (2) which is provided with a water distribution layer (3), a packing layer (4) and a water storage layer (5) is connected with an ozone tail gas breaking device (22); the bacteria filter (7) comprises an upper water distribution device (8), an active carbon layer (9), an iron and manganese removal filter material layer (10), and a lower water distribution device (12) and a gas distribution device (13) which are arranged in a bearing layer (11); and the bacteria filter (7) is sequentially connected with a backwash valve (14), a backwash water pump (15), a clean water valve (17) thereof and a clean water tank (16), and is connected with the blast blower (19) by a gas inlet valve (18). The ozone-bacteria filter system has the advantages that the ozone absorption efficiency is more than 90 percent, and residual ozone can be prevented from causing secondary pollution. The ozone-bacteria filter system can be widely used for the deep and recycling treatment of various hardly-degradable organic wastewater.

Description

technical field [0001] An ozone-biological filter system for advanced treatment of refractory organic waste water relates to a waste water advanced treatment device. Specifically, it is the equipment used for advanced treatment of refractory organic wastewater. Background technique [0002] With the continuous development of organic chemical industries such as coal chemical industry, papermaking, pharmaceuticals and printing and dyeing, the number and types of chemically synthesized organic compounds that enter the environment through waste water and waste gas discharge are increasing sharply at the rate of dozens every year. Some of these compounds are difficult to be degraded by microorganisms. They persist in the environment for a long time and gradually accumulate, threatening and damaging human health. At present, biological treatment is the most economical, practical and widely used organic wastewater treatment technology. However, conventional biological treatment i...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/78C02F3/10C02F1/28
CPCY02W10/10
Inventor 魏宏斌陈良才姚建华陈辉洋章建科
Owner TONGJI UNIV
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