Sludge hydrolysis acidification coupling denitrification device and treatment method thereof

A technology of sludge hydrolysis acidification and denitrification, which is applied in biological sludge treatment, anaerobic digestion treatment, waste fuel, etc., can solve problems such as insufficient carbon sources, achieve faster degradation rate, reduce floor space, and average retention of solids The effect of increasing time

Active Publication Date: 2012-09-05
彭永臻
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Problems solved by technology

[0007] The invention successfully solves the problem of insufficient carbon source in the denitrification process of digested sludge dehydration liquid. In a single reactor, NO x - There is an inhibition of the methanogenic reaction, so that the fermentation process is controlled in the acid production stage

Method used

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  • Sludge hydrolysis acidification coupling denitrification device and treatment method thereof
  • Sludge hydrolysis acidification coupling denitrification device and treatment method thereof
  • Sludge hydrolysis acidification coupling denitrification device and treatment method thereof

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Embodiment Construction

[0022] In conjunction with the accompanying drawings and embodiments, the patent application is further described: as figure 1 As shown, the sludge fermentation coupling denitrification device of the present invention consists of a nitrification liquid storage tank (1) for sludge dehydration liquid, a sludge fermentation coupling denitrification reactor SIFEDEN (2), a sludge pool (3), and an outlet pool (4) Composition. The raw water tank (1) for nitrification solution is 400L, the effective volume of the SIFEDEN reaction zone (2.13) is 150L, ​​the size of the reactor is ΦH=50cm×90cm, the volume of the surrounding static settling zone (2.14) is 100L, and the constant temperature water bath zone (2.12) is 300L . The volume of the outlet pool is 60L.

[0023] The sludge dewatering solution used in the examples is taken from the sludge dehydration room of Beijing Gaobeidian Sewage Treatment Plant. After aeration, most of the ammonia nitrogen is converted into , wherein the co...

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Abstract

The invention discloses a sludge hydrolysis acidification coupling denitrification device and a treatment method thereof, and belongs to the technical field of biochemical treatment of digested sludge dehydration liquor and primary sludge. The device is provided with a dehydration liquor nitrification raw water box, a sludge fermentation coupling denitrification reactor SFDR, a sludge storage tank and a water outlet tank, wherein the SFDR consists of a central reaction region, a peripheral static settling region and an outermost constant-temperature water bath. The method using the device comprises starting control and continuous running control. The invention is suitable for a denitrification stage of digested sludge liquor treatment, so that a carbon source can be saved and the denitrogenation efficiency is improved. The integrated device has the advantages of saving floor area, along with proper microbial growth environment and is easy and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of digested sludge dehydration liquid and primary sludge biochemical treatment. The primary sludge of urban sewage plants is used as a substrate, and the volatile organic acid produced by hydrolysis and acidification is used as an electron supply for denitrifying bacteria to remove nitrate nitrogen. In the integrated device, the deep denitrification of the digested sludge dehydration liquid and the initial stabilization of the primary sludge can be realized simultaneously. This process is suitable for sewage plants equipped with sludge anaerobic digestion process. It can side-treat the digested sludge dehydration liquid with high ammonia nitrogen and low carbon nitrogen ratio, so as to improve the denitrification operation effect of the entire sewage treatment plant. Background technique [0002] The degree of sewage treatment in my country has been significantly improved with the process of urbanization, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F11/04
CPCY02E50/343Y02E50/30
Inventor 彭永臻张亮张树军王淑莹吴程程
Owner 彭永臻
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