Biological multiplication sewage treatment plant lowering denitrification carbon source demand and treatment method thereof

The technology of a sewage treatment device and denitrifying carbon source is applied in the field of sewage biological treatment system, which can solve the problems of insufficient utilization of carbon source, difficulty in achieving denitrification effect, increase in denitrification cost, etc., so as to reduce the cost of aeration pipes and pipelines The effect of low construction cost and low operation and maintenance cost

Pending Publication Date: 2018-08-03
JIANGSU RUISHENG WATER TREATMENT
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Problems solved by technology

For high concentrations of ammonia nitrogen (NH 3 -N) sewage (such as spandex wastewater, tannery wastewater, etc.), or when the ammonia nitrogen content in the front part of the aeration zone is relatively high, the denitrification effect is difficult to meet the standard
[0008] Moreover, the above-m

Method used

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  • Biological multiplication sewage treatment plant lowering denitrification carbon source demand and treatment method thereof
  • Biological multiplication sewage treatment plant lowering denitrification carbon source demand and treatment method thereof
  • Biological multiplication sewage treatment plant lowering denitrification carbon source demand and treatment method thereof

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Embodiment 1

[0025]Example 1: A biomultiplication sewage treatment device that reduces the demand for denitrification carbon sources, including an integrated treatment tank 1, a lifting zone 2 arranged in the tank body, an aeration zone 3 and a mud-water separation zone 4, and the aeration zone 3 is configured In order to include a plurality of sub-sections with different dissolved oxygen concentrations, biofilm fillers 5 are placed in each sub-section; the anaerobic zone 3.1, anoxic zone 3.2 and aerobic zone 3.3 are arranged in sequence in the sub-sections, and the three pass through the first Partition wall 6 realizes functional isolation, and a circulating circulation area 7 is arranged in the middle of the pool body 1, and a sewage inlet pipe is arranged on one side of the circulating circulating area 7, and a partition plate 7.1 is arranged in the middle of the circulating circulating area 7 to form a circulating flow channel. Circulation area 7 has a common pool wall with lifting area...

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Abstract

The invention relates to a biological multiplication sewage treatment plant lowering denitrification carbon source demand and a treatment method thereof. The method comprises the following steps of allowing to-be-treated sewage to enter a circulation area from a sewage inlet tube, allowing the sewage to enter a lifting area from a bottom water inlet groove of the circulation area, uniformly distributing the to-be-treated sewage and pushing the to-be-treated sewage to an aeration area by the lifting area, performing combined bio-technology-based treatment on the sewage in the aeration area through a biological contact oxidation process, finally, separating sludge from clear water of sludge-water mixture flowing from the aeration area in a sludge-water separation area, thereby outputting andobtaining clear water, allowing at least a part of settled sludge to flow back to the circulation area, introducing air into water in the circulation area, oxidizing a part of ammonia and nitrogen insewage into nitrite, and oxidizing ammonia and nitrogen in sewage by the nitrite.

Description

technical field [0001] The technical field of sewage biological treatment of the present invention relates to a sewage biological treatment system in which a water intake area, a lifting area, an aeration area and a mud-water separation area are integrated in a treatment pool. Background technique [0002] Water resources are becoming more and more important in the development of society, and people are paying more and more attention to water treatment technology. Among them, sewage biological [0003] Processing technology has received extensive attention and has been continuously developed. [0004] A typical method in sewage biological treatment technology is the activated sludge method, which is based on the biological coagulation, adsorption and oxidation of activated sludge to decompose and remove organic pollutants in sewage (or called wastewater), and then make the sewage The sludge is separated from the water and the activated sludge can be recycled. In the activ...

Claims

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Application Information

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IPC IPC(8): C02F3/30
CPCC02F3/302C02F2203/006
Inventor 季亦强刘贵祥王金发杨阳朱向伍张蕾吴燕
Owner JIANGSU RUISHENG WATER TREATMENT
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