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Device and method for treating advanced landfill leachate by short-cut nitrification / anaerobic ammonia oxidation/ short-cut denitrification-anaerobic ammonia oxidation process

An anaerobic ammonia oxidation and landfill leachate technology, which is applied in the field of biological treatment of high ammonia nitrogen sewage sludge, can solve problems such as substandard effluent, achieve less carbon source consumption, improve total nitrogen removal rate, and high nitrogen removal load Effect

Active Publication Date: 2019-05-07
BEIJING UNIV OF TECH
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Problems solved by technology

However, the large amount of nitrate nitrogen produced by the anaerobic ammonium oxidation process is the main reason for the effluent not reaching the standard.

Method used

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  • Device and method for treating advanced landfill leachate by short-cut nitrification / anaerobic ammonia oxidation/ short-cut denitrification-anaerobic ammonia oxidation process

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] The device for treating late-stage landfill leachate by short-range nitrification / anaerobic ammonium oxidation / short-range denitrification-anammox process is characterized in that it includes a raw water tank (1), a short-range nitrification reactor (PN-SBR) (2), a second One intermediate water tank (3), anaerobic ammonium oxidation reactor (AMX-SBR) (4), second intermediate water tank (5), external carbon source storage tank (6.5), short-range denitrification-anammox oxidation reactor ( DEAMOX-UASB)(6);

[0026]The raw water tank is provided with a first (1.1), a second water outlet (1.2); the PN-SBR is provided with an air compressor (2.1), a gas flow meter (2.2), an aeration sand head (2.9), a first water inlet (2.4), first sampling port (2.7), first water outlet (2.8), first agitator (2.5), first water inlet peristaltic pu...

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Abstract

The invention discloses a device and method for treating advanced landfill leachate by short-cut nitrification / anaerobic ammonia oxidation / short-cut denitrification-anaerobic ammonia oxidation process, and belongs to the field of biological treatment of high ammonia nitrogen sewage sludge. The advanced landfill leachate firstly enters a PN-SBR, and all ammonia nitrogen in the feed water is oxidized into nitrite nitrogen; the discharged water containing the nitrite nitrogen and a part of the advanced landfill leachate together enter an AMX-SBR for denitrification by anaerobic ammonia oxidation; AMX-SBR effluent containing the nitrate nitrogen and the other part of the advanced landfill leachate and an additional carbon source are together pumped into a DEAMOX-UASB reactor, the nitrate nitrogen is reduced to nitrite nitrogen by short-cut denitrifying bacteria first, and further deep removal is completed through anaerobic ammonia oxidation; by the novel biological denitrification process, the problems of low denitrification efficiency and high effluent TN of the advanced landfill leachate are solved, and the consumption of the additional carbon sources is reduced; the process is flexible and changeable and easy to regulate and control, and is suitable for deep removal of high-ammonia-nitrogen wastewater.

Description

technical field [0001] The invention relates to a device and a method for treating late-stage landfill leachate by a short-range nitrification / anammox / short-range denitrification-anammox process, and belongs to the field of biological treatment of high-ammonia nitrogen sewage sludge. Background technique [0002] In recent years, with the increasing output of municipal solid waste, landfilling has gradually become the most widely used treatment and disposal method in the world. The leachate produced by landfill has the characteristics of complex composition, large changes in water quality and quantity, high concentration of organic matter and ammonia nitrogen, and imbalance of microbial nutrient elements, making its treatment one of the unsolved problems in the international scope. The traditional biological denitrification process converts NH 4 + -N translates to N0 3 - -N, and then denitrify the N0 3 - -N is converted to nitrogen gas which escapes from the water. In...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F101/16C02F103/06
Inventor 彭永臻张方斋王众姜浩
Owner BEIJING UNIV OF TECH
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