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Oxidation ditch sewage treatment system for pre-biochemical oxidation treatment

A sewage treatment system and biochemical oxidation technology, applied in the field of comprehensive sewage treatment systems and sewage treatment systems, can solve the problems of low sewage concentration, unsuitable for high concentration sewage purification, etc., and achieve the effect of reducing the content of pollutants

Inactive Publication Date: 2009-12-02
HAISIBOTE BEIJING SCIENE & TECH
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  • Abstract
  • Description
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Problems solved by technology

However, the sewage concentration suitable for the oxidation ditch is relatively low, and it is not suitable for the purification of high concentration sewage

Method used

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  • Oxidation ditch sewage treatment system for pre-biochemical oxidation treatment

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Embodiment Construction

[0009] see figure 1 , The present invention provides an oxidation ditch sewage treatment system for pre-biochemical oxidation treatment, comprising a grid 1, a water collection sedimentation tank 2, a contact oxidation tank 4 and an oxidation ditch 7 connected in sequence.

[0010] The sewage first enters the water collection and sedimentation tank through the grille, and the water collection and primary sedimentation are combined into one, which can simplify the overall structure of the equipment and save investment.

[0011] The grille is provided at the inlet of the water collection and sedimentation tank.

[0012] The grid is preferably a mechanical grid, and is provided with a bulky material outlet, so that the bulky material in the water can be separated and processed separately, so as to avoid hindrance to the subsequent process.

[0013] The lower part of the water collection and sedimentation tank is in the shape of an inverted truncated cone, and the bottom is provi...

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Abstract

The invention relates to an oxidation ditch sewage treatment system for pre-biochemical oxidation treatment, comprising a bar screen, a catchment sedimentation tank, a contact oxidation tank and an oxidation ditch, which are connected in turn; wherein, a water inlet of the contact oxidation tank is arranged on the lower part of the contact oxidation tank and a water outlet thereof on the upper part; the middle part of the tank is provided with a fixed packing bed; the packing adopts plastic porous packing; the oxidation ditch is provided with a plurality of parallel baffle plates which divide space in the ditch into a plurality of parallel ditches connected end to end; a plurality of aeration rotary brushes are arranged at intervals in the parallel ditches connected end to end, therefore, an aerobic zone and an anoxic zone can be transformed in turn, wherein, oxidization and nitration reactions mainly take place in the aerobic zone and hydrolysis and denitrification reactions mainly take place in the anoxic zone. The system can eliminate organic pollution, has certain functions of denitrification and dephosphorization and is mainly applicable to treating domestic sewage and other similar organic sewages.

Description

technical field [0001] The invention relates to a sewage treatment system, especially a comprehensive sewage treatment system based on oxidation ditch combined with other treatment methods to achieve a higher degree of purification and achieve a certain degree of descaling and denitrification, which belongs to environmental protection field. Background technique [0002] Since 1804, the British first used sedimentation and filtration technology as a centralized water treatment plant. In 1884, the Americans invented the coagulation, sedimentation, filtration, and chlorine disinfection technology, which has been used for 120 years. There are new discoveries and improvements in treatment, but the treatment process of domestic water basically remains the same, essentially no update and breakthrough. However, the water source to be treated has undergone great changes: the water source a hundred years ago was not polluted due to the underdevelopment of industry and agriculture. ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/12C02F1/52
CPCY02W10/10
Inventor 陈光亮
Owner HAISIBOTE BEIJING SCIENE & TECH
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