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Filler for sewage treatment, preparation method of filler and sewage treatment method

A sewage treatment method and sewage treatment technology, which is applied in the field of environmental engineering, can solve problems such as inability to be treated, and achieve the effect of efficient removal

Inactive Publication Date: 2012-11-07
DALIAN NATIONALITIES UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practical application, how to effectively realize the layered enrichment of denitrifying bacteria and anaerobic digesting bacteria is a difficult problem to solve, and this process is only for NO 3 - -N has a high removal effect, but cannot handle the high concentration of NH at the same time 4 + -N sewage, so the treatment efficiency of this method for sewage needs to be further improved

Method used

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  • Filler for sewage treatment, preparation method of filler and sewage treatment method
  • Filler for sewage treatment, preparation method of filler and sewage treatment method
  • Filler for sewage treatment, preparation method of filler and sewage treatment method

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Embodiment

[0049] Below, the present invention is further illustrated by examples. However, the present invention is not limited by this embodiment, and appropriate changes can be made within the range consistent with the purpose of the present invention, and these are all included in the technical scope of the present invention.

[0050] (1) Domestication and cultivation of anaerobic digestion bacteria, denitrification bacteria, and anammox bacteria

[0051] Medium formula for anaerobic digestion bacteria (mg / L): (NH 4 ) 2 SO 4 30. KH 2 PO 4 30. KHCO 3 500. MgSO 4 200. FeCl 3 100. CaCl 2 30.C 6 h 12 o 6 500. NaNO 3 40.

[0052] Medium formula for denitrifying bacteria and anammox bacteria (mg / L): (NH 4 ) 2 SO 4 60.KH 2 PO 4 30. KHCO 3 500. MgSO 4 200. FeCl 3 100. CaCl 2 30.C 6 h 12 o 6 200. NaNO 3 200.

[0053] Add 1ml of trace element solution to each liter of the above medium, the formula of trace element solution (g / L): EDTA 50.0, ZnSO 4 2....

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Abstract

The invention provides a filler for sewage treatment, a preparation method of the filler and a sewage treatment method with the filler. The filler is prepared by taking a conductive and porous material as a carrier, and adhering anaerobic digestion bacteria, denitrifying bacteria and anaerobic ammonium oxidation bacteria to form a film on the surface of the carrier, wherein the anaerobic digestion bacteria with low redox potential form a bio-anode; and the denitrifying bacteria and the anaerobic ammonium oxidation bacteria with high redox potential form a bio-cathode, so as to form a bio-electrode couple. The filler provided by the invention couples respiratory metabolism of the anaerobic digestion bacteria, the denitrifying bacteria and the anaerobic ammonium oxidation bacteria, promotes electron and proton transfer through the carrier with porous and conductive capabilities, and can synchronously remove organic pollutants and nitrogen-containing pollutants in the sewage at high efficiency.

Description

technical field [0001] The invention relates to a filler used for sewage treatment, a preparation method thereof, and a method for using the filler to treat sewage, belonging to the field of environmental engineering. Background technique [0002] At present, the number of urban sewage treatment plants continues to increase, and the sewage treatment rate also continues to increase, but the problem of water eutrophication has not been well resolved, mainly due to the low removal rate of total nitrogen in the existing biological denitrification technology, A considerable portion of ammoniacal nitrogen (NH 4 + -N) is simply converted to nitrate nitrogen (NO 3 - -N), and did not fundamentally remove the cause. Due to the problem of eutrophication, large-scale outbreaks of blue-green algae have occurred every year in Taihu Lake and Dianchi Lake in my country in recent years. With the increasing eutrophication of water bodies, the sewage discharge standards of sewage treatmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F1/48C02F3/34
CPCY02W10/10
Inventor 冉春秋崔玉波乌云娜赵不凋赵芾李隽截
Owner DALIAN NATIONALITIES UNIVERSITY
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