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Device and method for synchronously treating high-ammonia-nitrogen wastewater through sludge fermentation

A synchronous treatment, high ammonia nitrogen technology, applied in water/sludge/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problems of insufficient denitrification carbon source, reduce application prospects, etc. Dosing and processing costs, saving processing costs and floor space, and improving processing efficiency

Active Publication Date: 2014-03-26
BEIJING UNIV OF TECH
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Problems solved by technology

In order to solve the problem of insufficient carbon source for denitrification, there are currently studies using the organic matter produced by the fermentation of excess sludge as a carbon source for denitrification. The application prospect of this technology

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  • Device and method for synchronously treating high-ammonia-nitrogen wastewater through sludge fermentation

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Embodiment Construction

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

[0031] Such as figure 1As shown, the device for synchronous treatment of high ammonia nitrogen wastewater by sludge fermentation includes raw water tank 1, SBR reactor 2, intermediate water tank 3, sludge storage tank 4 and synchronous autotrophic denitrification reactor 5 coupled with sludge fermentation denitrification. The raw water tank 1 is connected to the water inlet of the SBR reactor 2 through the raw water inlet pump 1.1, and the raw water tank 1 injects raw water into the SBR reactor 2 through the raw water inlet pump 1.1. The SBR reactor 2 is provided with a temperature control device 2.1, a stirring device 2.2, a pH measuring instrument 2.3, a DO measuring instrument 2.4, an aeration head 2.5 and an air compressor 2.6. The water inlet end of the water tank 3 is connected, and its mud discharge end is connected to the mud injection end ...

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Abstract

The invention provides a device and a method for synchronously treating high-ammonia-nitrogen wastewater through sludge fermentation. A raw water pool in a system is connected with an SBR (Sequencing Batch Reactor); the SBR is connected with a sludge fermentation coupled denitrification synchronous autotrophic nitrogen removal reactor through a middle water tank and a sludge storage pool. The method comprises the following steps: high-ammonia-nitrogen wastewater firstly enters the SBR through the raw water pool for partial nitrification, the SBR drains water into the middle water tank, and then the water and residual sludge together enter the sludge fermentation coupled denitrification synchronous autotrophic nitrogen removal reactor for synchronous residual sludge fermentation, anaerobic ammonia oxidation and nitrogen removal by denitrification. The device and the method which are disclosed by the invention are suitable for advanced high-ammonia-nitrogen wastewater treatment, so that low-carbon-consumption sewage denitrification is realized, and the yield of the residual sludge in the system can be reduced.

Description

technical field [0001] The invention relates to a device and method for synchronously treating high-ammonia-nitrogen wastewater by sludge fermentation, and belongs to the technical field of sewage sludge biological treatment. First, the short-range nitrification is realized by controlling the aeration, and then the reduction of sludge and the efficient removal of total nitrogen in wastewater are realized under the joint action of hydrolytic acidification bacteria, denitrification bacteria and anammox bacteria. This technology is suitable for advanced treatment of high ammonia nitrogen wastewater. Background technique [0002] Biological denitrification of sewage by nitrification to NH 4 + -N converted to NO 3 - -N, and NO by denitrification 3 - -N is converted to nitrogen gas which escapes from the water. NO in the denitrification stage 3 - -N is an electron acceptor, and organic matter is used as an electron donor to convert nitrate nitrogen into nitrogen gas to co...

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Application Information

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IPC IPC(8): C02F9/14
Inventor 彭永臻王博王淑莹吴程程袁悦
Owner BEIJING UNIV OF TECH
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