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Low-cost biochemical sewage treatment ditch

A sewage treatment canal and sewage treatment technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of investment increase, development constraints, large and small tens of thousands of square meters meters, up to hundreds of thousands of square meters, to save costs, reduce total investment, and reduce land use

Inactive Publication Date: 2016-04-20
QINGDAO BAIJIANCHENG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, "oxidation ditch" and activated sludge technology are widely used in water pollution treatment at home and abroad, which treat sewage through biochemical methods, but this technology covers a large area, ranging from tens of thousands of square meters to more It is hundreds of thousands of square meters. Under the premise of rapid urban development, land resources are becoming increasingly tight and prices are rising. Therefore, the investment in new sewage treatment plants has also increased significantly, which directly results in a substantial increase in sewage treatment operating costs. There are huge constraints to development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A low-cost biochemical sewage treatment channel is composed of multiple sewage treatment units. Based on the original sewage ditch in the community, a section of 8 meters long and 1 meter wide is selected as the sewage treatment channel. The design is carried out by the physical and chemical method. The 0.2m of the canal is used as the grid, 0.4m is used as the sedimentation tank, 0.3m is used as the mixer, and 4 meters is used as the coagulation reactor. The sedimentation tank is integrated with the sand filter, and the length is 4.7 Meters, sewage is imported from sewage. Clear water exits. Ensure that the domestic sewage treatment capacity is 120 cubic meters per day, 5 cubic meters per hour, and meet the national first-level urban sewage discharge standard.

Embodiment 2

[0015] A low-cost biochemical sewage treatment channel is composed of multiple biochemical sewage treatment units. According to the treatment channel, a section of 80 meters long, 10 meters wide, and 3 meters deep is selected as the treatment channel. Designed by biochemical method, 0.8 meters of this canal is used as a grid, 1.7 meters as a sedimentation tank, anaerobic, anoxic and aerobic tanks are integrated into 75 meters, and there is a backflow device between aerobic and anaerobic. The integrated back-end is equipped with corresponding mud scraping facilities and dehydration machine room. Sewage enters from the sewage inlet and the clean water exits. Ensure that the domestic sewage treatment capacity is 2500 cubic meters per day and 105 cubic meters per hour, reaching the national level A standard for urban sewage discharge.

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PUM

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Abstract

The invention discloses a low-cost biochemical sewage treatment ditch. According to local conditions, on the basis of the geographical conditions of original to-be-treated river channels and ditches, selection of the treated river channels and ditches has to guarantee a length-to-width ratio of greater than or equal to 8:1, the sewage therein is treated according to different physicochemical and biochemical methods, the phosphorus removal reaches more than 93%, the total nitrogen removal reaches over 85%, and suspended matter removal can reach l2mg / L, the sewage treatment land is significantly reduced, the cost is saved, and the total investment of sewage treatment is greatly reduced.

Description

Technical field [0001] The invention relates to sewage treatment technology, in particular to a sewage treatment method using the geographical environment of rivers and ditches. Background technique [0002] At present, "oxidation ditch" and activated sludge technology are widely used at home and abroad for water pollution treatment, which is to treat sewage through biochemical methods, but the technology covers a large area, ranging from tens of thousands of square meters. The area is hundreds of thousands of square meters. Nowadays, under the premise of rapid urban development, land resources are becoming increasingly scarce and prices are rising. Therefore, the investment in the construction of new sewage treatment plants has also increased significantly, which directly leads to a substantial increase in the operation cost of sewage treatment. There are huge constraints on development. Summary of the invention [0003] The purpose of the present invention is to provide a low-c...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 韩君昌
Owner QINGDAO BAIJIANCHENG ENVIRONMENTAL PROTECTION TECH CO LTD