Combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate

A landfill leachate and anaerobic ammonium oxidation technology, applied in the field of environmental protection, can solve the problems of unsatisfactory treatment effects, achieve the effects of reducing treatment costs, being environmentally friendly, reducing chemical input and power consumption

Inactive Publication Date: 2012-01-04
GUANGDONG INST OF MICROORGANISM +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Traditional nitrification and denitrification denitrification technologies are unsatisfactory due to the water quality characteristics of landfill leachate containing high ammonia nitrogen and high humus

Method used

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  • Combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate
  • Combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate
  • Combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate

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Embodiment 1

[0019] Inoculate the mixed sludge in the SBR reactor (the sludge of the secondary sedimentation tank of the domestic sewage treatment plant and the sludge of the biochemical tank of the landfill leachate treatment plant are mixed in a mass ratio of 1:1).

[0020] Inoculate the mixed sludge in the ABR reactor (the sludge of the secondary sedimentation tank of the domestic sewage treatment plant and the sludge of the biochemical tank of the landfill leachate treatment plant are mixed at a mass ratio of 1:1), and use artificial water distribution to domesticate and enrich anammox bacteria , so that the ABR reactor starts and reaches stability. Artificial water distribution is to add ammonia nitrogen and nitrite to the basic inorganic salt medium, the concentration of ammonia nitrogen is 260mg / L, the concentration of nitrite nitrogen is 320mg / L, and the pH value is controlled at about 8.0.

[0021] Contains NaHCO per liter of Minimal Mineral Salt Medium 3 1.25g, KH 2 PO 4 0.0...

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Abstract

The invention discloses a combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate. The method comprises the following steps of: normally separating and removing, filtering and settling garbage percolate, anaerobically and biochemicalally pre-processing; putting the pre-processed garbage percolate in a started and steady SBR (Sequencing Batch Reactor) reactor; controlling the temperature of the SBR reactor in a range of 25-35 DEG C; hydraulically staying for 2 to 3 days, wherein the dissolved oxygen concentration is 2 to 3 mg/L so that the mol concentration ratio of nitrosation nitrogen to ammonia nitrogen in the water is 0.8 to 1.4; flowing the water into an anaerobic reactor and carrying out the anaerobic ammonium oxidation to denitrify. The method provided by the invention controls the reaction condition of SBR reactor so that the ammonia nitrogen in the garbage percolate is partially nitrosated and then removed in the garbage percolate in the series anaerobe reactor. Compared with the traditional garbage percolate denitrifying process including nitration and denitrification, the method obviously reduces the addition of agents and the consumption of the power energy, reduces the processing cost of garbage percolate and is an energy-saving, consumption-emission and environmental-friendly processing process.

Description

Technical field: [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a combined process for constructing partial nitrosation-ANAMMOX treatment of landfill leachate. Background technique: [0002] Landfill leachate is a kind of high-concentration, highly toxic and refractory organic wastewater, which generally contains 60-90% organic pollutants, 3-18% refractory substances and high concentrations of ammonia nitrogen far exceeding domestic sewage. How to efficiently remove high ammonia nitrogen in landfill leachate has always been a difficult problem in landfill leachate treatment. Traditional nitrification and denitrification denitrification technologies are unsatisfactory due to the water quality characteristics of landfill leachate containing high ammonia nitrogen and high humus. The anammox denitrification technology that has emerged in recent years is recognized as the most promising sewage denitrification technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/30C02F3/28C02F3/34C02F101/16
Inventor 许玫英廖小兵陈杏娟孙国萍邓代永
Owner GUANGDONG INST OF MICROORGANISM
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