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Technology and method for treating urban sewage by sectional parallel anaerobic ammonia oxidation

An anaerobic ammonium oxidation and urban sewage technology, which is applied in the field of sub-parallel anaerobic ammonium oxidation treatment of urban sewage to achieve the effects of ensuring stability, strong controllability and improving impact resistance.

Active Publication Date: 2013-08-07
BEIJING UNIV OF TECH
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Problems solved by technology

At present, the research on autotrophic denitrification process of anammox wastewater has been successfully applied to the treatment of high ammonia nitrogen wastewater, but there are relatively few studies on the autotrophic denitrification process of low ammonia nitrogen wastewater

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  • Technology and method for treating urban sewage by sectional parallel anaerobic ammonia oxidation

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Such as figure 1 As shown in the structural diagram, 1 is the domestic sewage raw water tank; 2 is the organic matter removal SBR reactor; 3 is the short-range nitrification SBR reactor; 4 is the regulating water tank; 5 is the autotrophic denitrification UASB reactor; the domestic sewage raw water tank overflows 3.1 is the water inlet pump, 3.2 is the agitator, 3.3 is the stirring paddle, 3.4 is the aeration head, 3.5 is the gas flow meter, 3.6 is the air pump, 3.7 is the mud discharge The vent pipe, 3.8 is the drain valve (the short-path nitrification SBR reactor has the same structure as the organic matter removal SBR reactor); 5.1 is the water inlet pump for the autotrophic denitrification UASB reactor, 5.2 is the sampling port, 5.3 is the three-phase separator, and 5.4 is the The overflow weir, 5.5 is an exhaust pipe, and 5.6 is a...

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Abstract

The invention provides a technology and a method for treating urban sewage by sectional parallel anaerobic ammonia oxidation, and belongs to the technical field of biological treatment of sewage. A raw water tank, an organic substance removal sequencing batch reactor (SBR), a short-cut nitrification SBR, a regulating water tank and an autotrophic nitrogen removal UASB reactor are adopted in the technology; the raw water tank is respectively connected with the organic substance removal SBR and the short-cut nitrification SBR through two peristaltic pumps; and the effluents of the organic substance removal SBR and the short-cut nitrification SBR are discharged to the regulating water tank, and the sewage in the regulating water tank enters the autotrophic nitrogen removal up-flow anaerobic sludge bed / blanket (UASB) reactor to realize removal of nitrogen. After a nitrification system drains water, the domestic sewage is added for post denitrification, so that implementation of short-cut nitrification and stability maintenance are facilitated; the concentration ratios of NH4<+>-N and NO2<->-N in the regulating water tank can be flexibly controlled by parallely connecting the organic substance removal SBR and the short-cut nitrification SBR; and the anaerobic ammonia oxidation technology is successfully applied to deep denitrification treatment of the domestic sewage, so that sewage treatment with high efficiency and low energy consumption is realized.

Description

technical field [0001] The invention relates to the technical field of sewage biological treatment, in particular to a process and method for treating urban sewage by segmented parallel anaerobic ammonium oxidation. Background technique [0002] The increasing water eutrophication has made the control and treatment of nitrogen pollution one of the key and difficult points in the research of water treatment technology. It is difficult for the traditional denitrification process to ensure the removal rate of total nitrogen in urban sewage with low carbon-to-nitrogen ratio without adding additional carbon sources. Therefore, how to improve the removal rate of total nitrogen while reducing the cost has become an The main problem faced. [0003] With the discovery of new biological denitrification pathways, anammox technology has been gradually developed and applied as one of the high-efficiency and low-cost biological denitrification processes. Anaerobic ammonium oxidation tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/30
Inventor 彭永臻唐晓雪徐竹兵王淑莹马斌
Owner BEIJING UNIV OF TECH
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