Anaerobic ammonia oxidized coupled heterotrophic denitrifying denitrification method

An anaerobic ammonium oxidation coupled, heterotrophic denitrification technology, applied in anaerobic digestion treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of organic pollutants, competition, etc. The effect of low mud yield, simple process and shortened start-up time

An anaerobic ammonium oxidation coupled, heterotrophic denitrification technology, applied in anaerobic digestion treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of organic pollutants, competition, etc. The effect of low mud yield, simple process and shortened start-up time

CN103420481AActive Publication Date: 2013-12-04BEIJING UNIV OF TECH
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  • Anaerobic ammonia oxidized coupled heterotrophic denitrifying denitrification method
  • Anaerobic ammonia oxidized coupled heterotrophic denitrifying denitrification method
  • Anaerobic ammonia oxidized coupled heterotrophic denitrifying denitrification method

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Embodiment

[0020] Test device such as figure 1 As shown, the test device is made of plexiglass with an effective volume of 10L. The reactor is wrapped with black soft material, and the upper third of the reactor is filled with polyvinyl chloride spherical packing with a diameter of 10cm. The waste water is pumped into the bottom of the reactor by a peristaltic pump, and the temperature in the reactor is maintained at 25Β°C, HRT is 1.5h, and the pH of the influent is controlled at around 7.8.

[0021] The reactor is inoculated with anammox granular sludge, such as figure 2 As shown in -A, after inoculation into the reactor, the sludge concentration is 1200mgMLVSS / L, ammonium chloride, sodium nitrite, sodium bicarbonate and organic matter are added by artificial water distribution, and the organic matter is phenol, and anaerobic ammonium oxidation is carried out in an organic environment Enrichment culture of mixed bacterial flora coupled with heterotrophic denitrification. The concentr...

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Abstract

The invention relates to an anaerobic ammonia oxidized coupled heterotrophic denitrifying denitrification method and belongs to the technical field of biological sewage treatment. The method includes adopting anaerobic ammonia oxidized granule sludge as the inoculated sludge; manually distributing water to add ammonium chloride, sodium nitrite, and phenol which is taken as organic matter, realizing enrichment culture of anaerobic ammonium oxidized bacteria and heterotrophic denitrifying bacteria, determining competitive and cooperative relations of the anaerobic ammonium oxidized bacteria and heterotrophic denitrifying bacteria, and realizing the enrichment culture of mixed flora of the anaerobic ammonium oxidized bacteria and heterotrophic denitrifying bacteria after a period of time.

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment, and in particular relates to an anaerobic ammonium oxidation coupled heterotrophic denitrification method for denitrification. Background technique [0002] Existing sewage treatment plants mostly adopt the traditional biological nitrification and denitrification denitrification process. In the nitrification stage, aeration is required to convert ammonia nitrogen into nitrate nitrogen. In the denitrification stage, an additional carbon source is required to convert nitrate nitrogen into nitrogen gas. , Dosing carbon sources will undoubtedly increase the cost of wastewater treatment, and the treatment efficiency of traditional denitrification process is not high. Therefore, there is an urgent need for a highly efficient and energy-saving wastewater denitrification process. In 1995, the Deft University of the Netherlands reported the existence of anammox bacteria, and then a ne...

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Application Information

Patent Timeline
04 Dec 2013
Publication
CN103420481A
IPC
C02F3/28; C02F3/34; C02F101/16
Inventors
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