Combined deoxidization-strengthened sewage treatment system for oxidation pond

A sewage treatment system and combined technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of secondary pollution, high operation cost and high operation requirements, To achieve the effect of being beneficial to denitrification, improving treatment efficiency and improving activity

Active Publication Date: 2014-05-07
HEBEI YUHUAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology

[0004] The invention mainly aims at the problems of high operating cost, high operation requirements and secondary pollution in the existing sewage treatment system, and provides a combined enhanced denitrification type oxidation pond sewage treatment that integrates the removal of SS, BOD, COD and N system

Method used

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  • Combined deoxidization-strengthened sewage treatment system for oxidation pond
  • Combined deoxidization-strengthened sewage treatment system for oxidation pond

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Embodiment 1

[0027] Such as figure 1 , figure 2 As shown, a combined enhanced denitrification type oxidation pond sewage treatment system is composed of a sewage collection area, a biological treatment system and a return system. The sewage collection area is provided with a grid 2 and a lift pump 4. The biological treatment The system consists of two parts: the combined anoxic / aerobic pond and the follow-up aerobic pond 10, where the combined anoxic / aerobic pond is sequenced from anoxic zone 5-aerobic zone 7-anoxic zone-aerobic zone from left to right The pool bottom height of the anoxic zone 5 is greater than that of the aerobic zone 7, and the water depth of the anoxic zone is 3.0-4.0m, and there is a sludge layer 6 at the bottom, and the water depth of the aerobic zone is 0.5m ~1.5m, and the three-dimensional elastic filler 8 that can provide attachment carriers for nitrifying and denitrifying microorganisms is installed. The subsequent aerobic pond 10 has a water depth of 0.5~1.5m, ...

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Abstract

The invention belongs to the technical field of sewage treatment in environmental engineering, and particularly relates to a combined denitrification-strengthened sewage treatment system for an oxidation pond, mainly solving the problems that the conventional sewage treatment system is high in operation cost and is high in operation requirement, and the secondary pollution is generated. The technical scheme is as follows: the combined denitrification-strengthened sewage treatment system for the oxidation pond comprises a sewage collecting area, a biological treatment system and a reflowing system, wherein the sewage flows into the sewage collecting area through a water inlet pipe, and is filtered by a retainer and then conveyed to the bottom of an anoxic area at the left side of an anoxic / aerobic pond by a lifting pump through a water conveying pipe; part of the sewage is conveyed into the sewage collecting area by a reflowing system through a water absorbing port, on the top of an effluent weir of an aerobic area at the right side, of the reflowing system; and another part of the sewage flows into a follow-up aerobic pond and is drained by a draining pipe. The combined deoxidization-strengthened sewage treatment system for the oxidation pond has the advantages of good treatment effect, small investment and long service life, and is simple to operate, convenient to manage and convenient to maintain.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering sewage treatment, and in particular relates to a combined enhanced denitrification type oxidation pond sewage treatment system. Background technique [0002] With the continuous advancement of urbanization and industrialization in my country, the discharge of urban sewage has also increased sharply. In recent years, with the rapid development of sewage treatment, sewage discharge standards have become increasingly stringent, and the requirements for denitrification of sewage treatment have also gradually increased. Therefore, it is of great significance to innovate and improve urban sewage treatment technology. [0003] Nitrogen removal is a technical difficulty in the standard transformation of urban sewage treatment plants. In recent years, it has received extensive attention and in-depth research. However, most of the current technologies have disadvantages such as high opera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 张弛赵保军王增长安敬艳刘富龙
Owner HEBEI YUHUAN ENVIRONMENTAL PROTECTION TECH CO LTD
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