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Integrated treatment device for low-carbon nitrogen ratio sanitary sewage

A technology for domestic sewage and treatment devices, which is applied in water/sludge/sewage treatment, aerobic and anaerobic process treatment, water pollutants, etc. Achieve the effect of alleviating the contradiction between competing carbon sources, improving the system's phosphorus removal performance, and good nitrogen and phosphorus removal performance.

Pending Publication Date: 2019-06-28
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a low carbon-nitrogen ratio domestic sewage integrated treatment device to solve the problem of poor nitrogen and phosphorus removal effect caused by low carbon-nitrogen ratio of domestic sewage in villages and towns

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  • Integrated treatment device for low-carbon nitrogen ratio sanitary sewage
  • Integrated treatment device for low-carbon nitrogen ratio sanitary sewage

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[0027] In order to understand above-mentioned object, feature and advantage of the present invention more clearly, below in conjunction with accompanying drawing and embodiment the present invention is described in further detail. It should be understood that the described embodiments are some, not all, embodiments of the present invention. The specific embodiments described here are only used to explain the present invention, not to limit the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0028] The present invention is mainly aimed at the treatment of domestic sewage with low carbon-to-nitrogen ratio, usually referring to the COD:TN<7 of domestic sewage. Among them, COD represents the chemical oxygen demand of domestic sewage, which is the main index reflecting the content of organic matter, and TN represents the total nitroge...

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Abstract

The invention relates to an integrated treatment device for low-carbon nitrogen ratio sanitary sewage. The integrated treatment device comprises a tank body and a partition water inlet device, whereina front-mounted anoxic tank, an anaerobic tank, an aerobic tank and a settling tank are sequentially arranged in the tank body at intervals and are sequentially communicated, and a draining hole is formed in the settling tank; an air-lifting reflux pipe is arranged in the aerobic tank, and a sludge reflux pipe is arranged at the bottom of the settling tank; and the partition water inlet device comprises a water inlet end and at least two water outlet ends, and at least two water outlet ends are respectively communicated to at least two reaction tanks in the front-mounted anoxic tank, the anaerobic tank and the aerobic tank. Water is conveyed into multiple reaction tanks, respectively in certain proportions by the partition water inlet device, so that the sufficient carbon sources are distributed to microorganisms in sludge in each reaction tank, the contradiction between phosphorus-accumulating bacteria and denitrifying bacteria during the competition of the carbon sources is relieved, and good nitrogen and phosphorus removal properties are guaranteed under a limited water inlet carbon source condition.

Description

technical field [0001] The invention relates to the technical field of domestic sewage treatment, in particular to an integrated treatment device for low carbon-to-nitrogen ratio domestic sewage, which is suitable for the treatment of decentralized low-carbon-nitrogen ratio domestic sewage in villages and towns and point-source and small-flow sewage that is not connected to the pipe network in cities deal with. Background technique [0002] With the rapid development of my country's economy, water pollution is becoming more and more serious, especially excessive nitrogen and phosphorus will lead to eutrophication of water, which will lead to deterioration of water and serious water pollution. The AAO process is currently a relatively common simultaneous nitrogen and phosphorus removal process. It has the advantages of simple structure, short hydraulic retention time (HRT), and mature operation design experience. It has become the mainstream process used by sewage treatment p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/10C02F101/16C02F101/38
Inventor 金鹏康荣懿金鑫石烜
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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