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Sewage treatment method of degrading COD, BOD, SS, and ammonia nitrogen

A sewage treatment method, ammonia nitrogen technology, applied in the field of BOD, ammonia nitrogen sewage treatment, COD, SS degradation, can solve the problem of increased heavy metal content in leachate, achieve obvious effect and high removal rate

Inactive Publication Date: 2014-04-16
沃邦环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] 7) Heavy metals: due to inadequate sorting and collection of household waste and landfill sorting, many heavy metal wastes exist in them, resulting in an increase in the content of heavy metals in the leachate

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  • Sewage treatment method of degrading COD, BOD, SS, and ammonia nitrogen
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  • Sewage treatment method of degrading COD, BOD, SS, and ammonia nitrogen

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] see figure 1 , in an embodiment of the present invention, a sewage treatment method for degrading COD, BOD, SS, and ammonia nitrogen, firstly, the sewage enters the regulating pool through a mechanical grid, and then flows through the hydrolytic acidification pool, the biological contact oxidation pool, and the neutralization sedimentation pool in sequence , filter tank, split MBR, CASS reaction tank, balance tank and NF / RO system, and then flow into th...

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Abstract

The invention discloses a sewage treatment method of degrading COD, BOD, SS, and ammonia nitrogen. Sewage enters into an adjusting tank through a machinery grizzly screen, and then flows through a hydrolyze acidification tank, a biological contact aeration tank, a neutralizing sedimentation tank, a filtering tank, a split type MBR, a CASS (cyclic activated sludge system) reaction tank, a balancing tank, an NF / RO system, and a monitoring tank in sequence. According to the invention, the sewage is deodorized and macromolecule organic matters are degraded by hydrolyzing acidification bacteria and compound acid; then, the pH value of the sewage is adjusted by adding alkali; after the primary treatment, treating the sewage with deepening treatment through the advanced split type MBR, the CASS reaction tank and the NF / RO system in sequence. The removal ratios of COD, BOD, SS, and ammonia nitrogen are high and above 95%; the effect is obvious; the effluent quality can meet standards completely.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage treatment method for degrading COD, BOD, SS and ammonia nitrogen. Background technique [0002] With the continuous improvement of urban living standards in our country, the amount of domestic waste is also increasing. A number of domestic waste treatment plants have been built in my country. The main treatment methods include waste incineration, landfill, composting and comprehensive utilization. Among them, landfill has become a waste disposal method widely used in my country at this stage, especially in small and medium-sized towns, due to its relatively low operating costs, relatively convenient management, and relatively mature technology. The leachate produced in the landfill process is currently recognized as a high-concentration polluted wastewater with serious pollution, difficult treatment and complex properties in the world. To build a landfill leachate treat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/28C02F3/34
Inventor 刘军亮
Owner 沃邦环保有限公司
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