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Control method and device for deep denitrification treatment of garbage leachate by combination of short-range nitrification and anaerobic ammoxidation

An anaerobic ammonia oxidation and landfill leachate technology is applied in the field of control methods and devices for deep denitrification of landfill leachate, and can solve the problems of difficulty in deep denitrification of landfill leachate and the like

Active Publication Date: 2013-04-03
中山公用水务投资有限公司
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Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned technologies, the present invention provides a device and method that can solve the problem of difficult deep denitrification of landfill leachate

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  • Control method and device for deep denitrification treatment of garbage leachate by combination of short-range nitrification and anaerobic ammoxidation
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  • Control method and device for deep denitrification treatment of garbage leachate by combination of short-range nitrification and anaerobic ammoxidation

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[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 1 As shown, the present invention provides a schematic structural diagram of a device for controlling the deep denitrification of landfill leachate by combining short-cut nitrification with anaerobic ammonium oxidation. The water inlet tank 2 is connected to the first SBR reactor 9 through the water inlet pipe SBR14, the water inlet pump SBR13 and the water inlet valve SBR15; the first SBR reactor 9 is connected to the first intermediate water tank 19 through the water outlet pipe SBR118 and the water outlet valve SBR117; the first intermediate water tank 19 is connected to the second SBR reactor 74 through the water inlet pipe SBR234, the water inlet pump SBR221 and the water inlet valve SBR222, and the first intermediate water tank 19 is also connected to the second intermediate water tank 35 through the water...

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Abstract

The invention discloses a control method and device for deep denitrification treatment of garbage leachate by combination of short-range nitrification and anaerobic ammoxidation, relating to the field of biological sewage treatment. The invention can solve the problem of difficulty in deep denitrification of garbage leachate. Denitrification reaction and organic substance removal are carried out in a first SBR (sequencing batch reactor), and the process is controlled by real-time ORP and pH monitoring. 60% of effluent water of the first SBR directly enters a second SBR to be subjected to short-range nitrification which is controlled by real-time DO and pH monitoring. 40% of effluent water of the first SBR and effluent water of the second SBR are mixed and enter an ASBR (anaerobic sequencing batch reactor) in a continuous water inlet mode to be subjected to anaerobic ammoxidation, and the process is controlled by real-time pH monitoring. After draining, 70% of effluent water flows back to an influent water tank, and the rest of effluent water is discharged for the next cycle. The invention can accurately control the denitrification mixing time as well as organic substance removal and short-range nitrification aeration time, and has the advantages of energy consumption saving, shorter reaction time, no need of external carbon source, high TN removal rate and the like.

Description

technical field [0001] The invention relates to the field of sewage biological treatment, in particular to a control method and device for deep denitrification treatment of landfill leachate. Background technique [0002] With the rapid development of the economy and the gradual improvement of people's living standards, the output of urban waste continues to increase. At present, most of the garbage in our country is treated by landfill. Landfill is an effective and cheap way to deal with it. However, the landfill leachate has seriously affected the water environment in our country. Garbage leachate is the sewage leached out of the garbage in the process of stacking and landfilling through rain shower, scouring and fermentation, as well as immersion of surface water and groundwater. The landfill leachate is dark brown and has very complex components. It contains a large amount of organic matter and ammonia nitrogen, and is also rich in toxic and harmful heavy metal ions. It...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14G05B19/04
Inventor 王淑莹苗蕾王凯彭永臻朱如龙李忠明
Owner 中山公用水务投资有限公司
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