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Anerobic ammoxidation and denitrification synergistic denitrification method for garbage leachate

A landfill leachate and anaerobic ammonium oxidation technology, applied in the field of landfill leachate anaerobic ammonium oxidation and denitrification synergistic denitrification

Inactive Publication Date: 2007-08-01
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0019] The purpose of the present invention is to provide a synergistic denitrification method for anaerobic ammonium oxidation and denitrification of landfill leachate in view of the shortcomings of domestic and foreign anaerobic ammonium oxidation research mainly limited to small-scale experiments with artificial water distribution of ammonia salt and nitrite

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  • Anerobic ammoxidation and denitrification synergistic denitrification method for garbage leachate
  • Anerobic ammoxidation and denitrification synergistic denitrification method for garbage leachate
  • Anerobic ammoxidation and denitrification synergistic denitrification method for garbage leachate

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[0029] The present invention will be further described below in conjunction with the accompanying drawings, but the scope of protection claimed by the present invention is not limited to the scope described in the specific embodiments.

[0030] The test device that the present invention adopts is as shown in accompanying drawing 1, and anammox reactor comprises cylindrical reactor shell 1, and the bottom in shell 1 is provided with anaerobic sludge bed 2, and shell 1 bottom has The water inlet 7 and the water inlet 7 are connected to the water distribution tank 5 through the pump 6, the upper part of the cylinder is provided with a water outlet 3, and a constant temperature control system 4 is provided around the anaerobic sludge bed 2 outside the anaerobic ammonium oxidation reactor. The device is changed into a circular shape, and the three-phase separator is canceled on the upper part, and a constant temperature control system is set outside the anaerobic sludge bed. The an...

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Abstract

The invention discloses a method of garbage percolation water anaerobic ammoxidation and denitrifying synergic denitrify, which comprises the following steps: mixing garbage waste-water with COD, NH4+,NO2- and NO3- and nitrated nitrogenous water; leading organic wastewater into activated sludge and garbage percolation water; enriching anaerobic ammonia-oxidizing bacteria and denitrifying bacteria on the tamed anaerobic sludge bed; removing COD, ammonia nitrogen and nitrated nitrogen synchronously through cooperating knife-bar of anaerobic ammonia-oxidizing bacteria and denitrifying bacteria; controlling temperature of waste-water under 26-36 deg.c. The invention realizes denitrifying reaction, which removes partial COD effectively.

Description

technical field [0001] The invention relates to a method for synergistic denitrification of landfill leachate by anaerobic ammonium oxidation and denitrification. Specifically, an improved anaerobic sludge bed reactor is used to domesticate aerobic and anaerobic activated sludge through landfill leachate at the same time. Pass the landfill leachate into the bioreactor, and promote the anaerobic ammonium oxidation in the bioreactor to remove NH through the synergistic effect of anaerobic ammonium oxidation and denitrification in the microbial system 4 + and NO 2 - , and remove NO produced by anammox by denitrification 3 - and organic pollutants (COD). Background technique [0002] In 1977, based on the free energy calculation of thermodynamic reaction, Broda speculated that there may be two kinds of autotrophic microorganisms in nature that can convert NH 4 + Oxidized to N 2 . In 1994, Mulder et al. found that there was NH in a sewage denitrification fluidized bed re...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 周少奇张鸿郭
Owner SOUTH CHINA UNIV OF TECH
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