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Two-stage anaerobic ammonium oxidation control method and device for deep denitrification of landfill leachate

A technology for landfill leachate and anaerobic ammonia oxidation is applied in the field of 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: 2021-02-02
BEIJING UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] Aiming at the shortcomings of the above-mentioned technologies, the present invention provides a device and a control method, which can solve the problem of difficult deep denitrification of landfill leachate

Method used

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  • Two-stage anaerobic ammonium oxidation control method and device for deep denitrification of landfill leachate
  • Two-stage anaerobic ammonium oxidation control method and device for deep denitrification of landfill leachate
  • Two-stage anaerobic ammonium oxidation control method and device for deep denitrification of landfill leachate

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] refer to figure 1 As shown, the present invention provides a structural schematic diagram of a two-stage anaerobic ammonium oxidation deep denitrification device for landfill leachate.

[0032] The water inlet pipe 1 is connected to the water inlet tank 2, and the water inlet tank 2 passes through the water inlet pump 厌氧 3. Water inlet valve 厌氧 4 and water inlet pipe 厌氧 5 is connected with the anaerobic SBR reactor 6, and the anaerobic SBR reactor 6 passes through the water outlet 厌氧 13 and outlet pipe 厌氧 16 and water outlet valve 厌氧 14. Outlet pump 厌氧 15 is connected with intermediate water tank 17. Intermediate water tank 17 passes through water inlet pump 一体 18. Water inlet valve 一体 19 and water inlet pipe 一体 20 is connected with integrated SBR reactor 21, and integrated SBR reactor 21 passes water outlet 一体 35 an...

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Abstract

The two-stage anaerobic ammonium oxidation control method and device for deep denitrification of landfill leachate relate to the field of biological sewage treatment, and can solve the problem of high energy consumption for deep denitrification of landfill leachate. The raw water is preliminarily degraded by anaerobic digestion before the anaerobic SBR reactor, and the reaction time is controlled by pH fuzzy control. The effluent enters the integrated SBR reactor, which is pre-stirred for denitrification and internal carbon source storage; then alternately operated with aeration and agitation to form several units. The aeration time of the subsequent units is shorter than the gradient of the pre-unit, and the removal of the aeration stage can be degraded. The organic matter is simultaneously subjected to short-range nitrification, and the stirring stage is carried out for denitrification and anammox to achieve deep denitrification. The mixing and aeration of each unit adopts precise time control, pH fuzzy control and DO fuzzy control, which can accurately determine the reaction end point of short-range nitrification and anammox, and strengthen the adaptation of anammox bacteria with sponge filler as carrier to the environment sex.

Description

technical field [0001] The invention relates to the field of sewage biological treatment, in particular to a device and a control method for performing deep denitrification treatment on landfill leachate. Background technique [0002] Since entering the "13th Five-Year Plan", my country's economy has continued to develop, the urbanization process has accelerated, and people's living standards have been further improved, followed by increasing urban waste. At this stage, my country mainly adopts sanitary landfill for municipal solid waste. However, the leachate produced by landfill seriously threatens my country's soil environment and water environment, and endangers human health. [0003] Landfill leachate can be roughly divided into three categories according to the age of the landfill: early leachate, mid-term leachate and late leachate. year. Early leachate water quality has low pH, BOD 5 / COD is high, biodegradability is good, and it is easy to be treated biologically...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F3/30C02F9/14
CPCC02F3/282C02F3/303C02F3/307C02F9/00C02F2103/06C02F2209/06C02F2209/22C02F2209/44
Inventor 彭永臻姜浩苗蕾王众张方斋李夕耀张琼王淑莹
Owner BEIJING UNIV OF TECH
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