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Method for improving terramycin impact resistance of anammox sludge

An anaerobic ammonium oxidation and anaerobic sludge technology is applied in the field of improving the oxytetracycline impact resistance of the anaerobic ammonium oxidation process, which can solve the problems of damaged functional microorganism activity, difficult recovery, and decreased process performance, and achieves enhanced stability. performance, low cost, and shortened recovery time

Inactive Publication Date: 2015-05-06
HANGZHOU NORMAL UNIVERSITY
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Problems solved by technology

When the anammox process is used to treat the above-mentioned high-ammonia-nitrogen wastewater, the oxytetracycline in the wastewater will inevitably inhibit the process and functional microorganisms, resulting in the impact of the anaerobic ammonium oxidation process on wastewater with high oxytetracycline content. When the functional microbial activity is damaged, the process performance is reduced or even difficult to recover

Method used

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Embodiment 1

[0019] Take R 1 , R 2 , R 3 , R 4 , R 5 Five upflow anaerobic sludge bed anaerobic ammonium oxidation reactors, with a volume of 1L, were each filled with 1L of anaerobic ammonium oxidation granular sludge, and the concentration of volatile suspended solids was detected to be 11.3g L -1 , that is, each of them contains 11.3 g of volatile suspended solids. R 1 ~R 5 The influent water is all simulated wastewater, and its specific composition is: ammonia nitrogen, nitrite nitrogen, respectively (NH 4 ) 2 SO 4 and NaNO 2 Provided, the molar ratio of ammonia nitrogen and nitrous acid is 1:1, and the influent concentration is 280mg L -1 , the other components are: KH 2 PO 4 10mg·L -1 , CaCl 2 2H 2 O 5.6mg·L -1 , MgSO 4 ·7H 2 O 300mg·L -1 ,KHCO 3 1250mg·L -1 , trace elements are added after chelating with EDTA, the specific composition is EDTA 25.0mg·L -1 , FeSO 4 ·7H 2 O 11.43mg·L -1 , H 3 BO 4 0.018mg·L -1 , MnCl 2 4H 2 O 1.24mg·L -1 , CuSO 4 ·5H 2 ...

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Abstract

The invention discloses a method for improving terramycin impact resistance of anammox sludge. The method comprises the following steps: inoculating anammox particle sludge in an anaerobic sludge reactor, performing operation treatment on ammonia nitrogen-containing wastewater, and monitoring the terramycin content in the wastewater on line, wherein terramycin impact exists when the terramycin content is increased to be 500mg / L or more; and adding fresh anammox particle sludge into the anaerobic sludge reactor, wherein the mass of volatile suspended solids in the fresh anammox particle sludge accounts for 3-8 percent of the mass of volatile suspended solids contained in the original particle sludge in the anaerobic sludge reactor. With the adoption of a biological enhancement mode, the restoration time of the anaerobic sludge reactor can be shortened, and the terramycin impact resistance stability of the reactor is enhanced.

Description

technical field [0001] The invention relates to a method for improving the anti-oxytetracycline impact performance of an anaerobic ammonium oxidation process, which belongs to the field of wastewater treatment. Background technique [0002] Anammox bacteria can catalyze the biological reaction of ammonia and nitrite under anaerobic conditions to generate nitrogen and realize denitrification. The anammox process uses anammox bacteria as functional bacteria, a new type of biological denitrification technology with high denitrification load and low operating cost, and has a good application prospect. [0003] However, autotrophic anammox bacteria grow slowly, with a doubling time of up to 11 days and are sensitive to environmental conditions. At the same time, oxytetracycline, as a broad-spectrum, high-efficiency, and cheap veterinary antibiotic drug, widely exists in high-ammonia nitrogen wastewater such as oxytetracycline production wastewater and pig farm wastewater. When ...

Claims

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Application Information

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IPC IPC(8): C02F3/28
CPCC02F3/28C02F2209/10C02F2209/11
Inventor 金仁村张倩倩张正哲郭琼周煜璜王慧中
Owner HANGZHOU NORMAL UNIVERSITY
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