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Sewage treatment device with denitrification function

A sewage treatment device and functional technology, which is applied in the field of sewage treatment devices with denitrification function, can solve the problems of increased treatment load and high operating costs, and achieve the effects of reduced sludge production, reduced return power costs, and good removal effects

Inactive Publication Date: 2007-10-03
ZHEJIANG UNIV
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Problems solved by technology

The most important denitrification process in traditional wastewater biological treatment technology is A 2 / O process, which changes the treatment conditions from anaerobic to aerobic and then to facultative oxygen through effluent backflow to achieve denitrification, which requires a lot of backflow power and increases the processing load, so the operating cost is too high, and Not used by most of the current sewage treatment plants

Method used

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  • Sewage treatment device with denitrification function
  • Sewage treatment device with denitrification function

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Embodiment Construction

[0022] As shown in Figures 1 and 2, a sewage treatment device with denitrification function includes a pool body 21 and a cover plate 17. The two ends of the pool body 21 are respectively provided with a water inlet 1 and a water outlet 20. The plates are sequentially divided into anaerobic carbon removal zone 2, aerobic nitrification zone 3 and anaerobic denitrification zone 5.

[0023] The anaerobic carbon removal zone 2 is provided with a number of ascending compartments and descending compartments separated by upper baffles 9 and lower baffles 8 , and hollow spherical fillers 7 are filled and fixed in the ascending compartments. The removal effect of the ascending compartment is better than that of the descending compartment, so the width ratio of the ascending compartment and the descending compartment needs to be adjusted appropriately, which can not only meet the treatment effect, but also improve the overall treatment efficiency of the device. The width ratio of the as...

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Abstract

A sewage treating apparatus with denitrifying function is composed of a pool body and a covering plate with several inoculating holes and exhausting hole. Said pool with water inlet and outlet is divided into an anaerobic decarbonizing region consisting of isolated flow-up chambers containing fixed filler and flow-down chamber, an aerobic nitrifying region consisting of the aerating chamber with internal aerating unit communicated with external air compressor and the precipitating chamber, and an anaerobic denitrifying region consisting several flow-up chambers containing fixed filler and several flow-down chambers.

Description

technical field [0001] The invention relates to a water treatment device, in particular to a sewage treatment device with denitrification function. Background technique [0002] At present, the wastewater treatment in my country mainly consists of anaerobic process and aerobic process. The anaerobic process basically has no function of removing nitrogen, and the aerobic process only converts ammonia nitrogen into nitrate nitrogen, and does not achieve real effect on nitrogen pollution. remove. The most important denitrification process in traditional wastewater biological treatment technology is A 2 / O process, which changes the treatment conditions from anaerobic to aerobic and then to facultative oxygen through effluent backflow to achieve denitrification, which requires a lot of backflow power and increases the processing load, so the operating cost is too high, and It is not used by most of the current sewage treatment plants. [0003] The utility model patent 20052002...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/10C02F101/16
CPCY02W10/10
Inventor 冯华军沈东升胡立芳
Owner ZHEJIANG UNIV
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