Method for deeply treating sludge anaerobic digestion solution and urban sewage with partial-nitrification, ANAMMOX and short-cut-denitrification technology

A short-range denitrification and short-range nitrification technology, which is applied in the field of sewage biological treatment, can solve the problems of increasing operating costs and achieve the effects of small footprint, low total nitrogen concentration in effluent, and simple process structure

Active Publication Date: 2016-10-12
BEIJING UNIV OF TECH
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[0005] In addition, since the short-range denitrification process requires electron donors, it is gene

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  • Method for deeply treating sludge anaerobic digestion solution and urban sewage with partial-nitrification, ANAMMOX and short-cut-denitrification technology

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as figure 1As shown, a short-cut nitrification-ANAMMOX-short-cut denitrification process device for advanced treatment of sludge anaerobic digestion liquid and urban sewage, including a raw water tank (1), a short-cut nitrification reactor (2), a first intermediate water tank (3) , ANAMMOX reactor (4), the second intermediate water tank (5), short-range denitrification reactor (6), urban sewage storage tank (7) and the third intermediate water tank (8); the short-range nitrification reactor (2) is provided with Air pump (2.1), aeration head (2.2), first sampling port (2.3), first drain port (2.4), first drain valve (2.5), short-range nitrification water inlet (2.6), alkalinity dosing port ( 2.7), alkalinity storage tank (2.8), the first peristaltic pump (2.9), pH monitoring device (2.10) and the first agitator (2.11); the...

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Abstract

The invention discloses a method for deeply treating a sludge anaerobic digestion solution and urban sewage with a partial-nitrification, ANAMMOX and short-cut-denitrification technology. The method includes the steps that the sludge anaerobic digestion solution enters a partial-nitrification reactor, a part of ammonia and nitrogen is converted into nitrite nitrogen, the product is pumped into an ANAMMOX reactor for removing, drained water with nitrate nitrogen and sanitary sewage enter a short-cut-denitrification reactor, the nitrate nitrogen is converted into nitrite nitrogen under organic carbon sources in the sanitary sewage, the product flows back to the ANAMMOX reactor, the nitrite nitrogen, and ammonia and nitrogen in the sanitary sewage are synchronously removed, and therefore the sludge anaerobic digestion solution and the urban sewage are synchronously and deeply treated. According to the method, the nitrogen removing rate is high, drained water can be discharged without following treatment, and the problem that excessive nitrate is contained in high-ammonia-nitrogen low-carbon-nitrogen-ratio sludge digestion solution ANAMMOX treatment drained water is solved; meanwhile, synchronous treatment of the urban sewage is achieved, and the running cost of a sewage treatment plant is greatly reduced.

Description

technical field [0001] The invention relates to a synchronous low-carbon-nitrogen (C / N) ratio sludge digestion liquid and urban domestic sewage denitrification technology, which belongs to the technical field of sewage biological treatment. Background technique [0002] During the anaerobic digestion of sludge in urban sewage treatment plants, microorganisms release the organic nitrogen in the sludge into the supernatant through deamination, resulting in a concentration of ammonia nitrogen in the digestion solution as high as 600 mg / L or more; in addition, because the methanogenic bacteria will The consumption of organic matter in the digestion process greatly reduces the concentration of organic matter in the digested liquid. Therefore, the sludge digested liquid becomes a typical waste water with high ammonia nitrogen and low carbon nitrogen ratio. Although its water volume only accounts for about 2% of the entire sewage treatment plant, the ammonia nitrogen load accounts ...

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Application Information

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IPC IPC(8): C02F3/30C02F101/16
CPCC02F3/302C02F2101/16C02F2101/166C02F2301/04
Inventor 彭永臻杜睿操沈彬牛萌王淑莹
Owner BEIJING UNIV OF TECH
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