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High-energy-saving sewage multi-layer percolation purification treatment method

A purification treatment and percolation technology, which is applied in the field of environmental engineering, can solve problems such as strict requirements on the concentration of suspended particulate matter in influent water, reduced pollutant removal rate, and difficulty in meeting water quality standards, achieving pollution-free discharge, high ornamental value, and saving infrastructure. The effect of fees

Inactive Publication Date: 2020-03-27
陈琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the hydraulic load of constructed wetland is high, but aquatic plants wither in low temperature and cold seasons, resulting in a serious reduction in pollutant removal rate and difficulty in meeting water quality standards; underground infiltration has limitations such as low hydraulic load and strict requirements on the concentration of suspended particulate matter in influent water.

Method used

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  • High-energy-saving sewage multi-layer percolation purification treatment method
  • High-energy-saving sewage multi-layer percolation purification treatment method
  • High-energy-saving sewage multi-layer percolation purification treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]As shown in the figure, collect the sewage passing through the grid fence into the sedimentation tank 1, add 30 grams of microbial flocculant per ton of sewage, let it settle for 12 hours, and then transport the sewage to the diafiltration device for diafiltration purification; the diafiltration The device includes a primary diafiltration tank 2 and a secondary diafiltration tank 3, and the sedimentation tank 1, the primary diafiltration tank 2 and the secondary diafiltration tank 3 are arranged in steps; Filter the water layer 4 and the topsoil layer 5, and send the sewage from the water outlet 61 at the bottom of the sedimentation tank 1 into the first parallel pipeline 71 above the primary infiltration tank 2 near the sedimentation tank 1, and from the lower end of the first parallel pipeline 71 Multiple groups of water outlet holes 8 drip into the water hyacinth planted in the top soil layer 5 of the primary infiltration tank 2, and the sewage passes through the wetla...

Embodiment 2

[0038] As shown in the figure, collect the sewage passing through the grid fence into the sedimentation tank 1, add 25 grams of microbial flocculant per ton of sewage, let it settle for 17 hours, and then transport the sewage to the diafiltration device for diafiltration purification; the diafiltration The device includes a primary diafiltration tank 2 and a secondary diafiltration tank 3, and the sedimentation tank 1, the primary diafiltration tank 2 and the secondary diafiltration tank 3 are arranged in steps; Filter the water layer 4 and the topsoil layer 5, and send the sewage from the water outlet 61 at the bottom of the sedimentation tank 1 into the first parallel pipeline 71 above the primary infiltration tank 2 near the sedimentation tank 1, and from the lower end of the first parallel pipeline 71 Multiple groups of water outlet holes 8 drip into the water onion planted in the topsoil layer 5 of the primary infiltration tank 2, and the sewage passes through the wetland ...

Embodiment 3

[0044] As shown in the figure, collect the sewage passing through the grid fence into the sedimentation tank 1, add 20 grams of microbial flocculant per ton of sewage, let it settle for 21 hours, and then transport the sewage to the diafiltration device for diafiltration purification; the diafiltration The device includes a primary diafiltration tank 2 and a secondary diafiltration tank 3, and the sedimentation tank 1, the primary diafiltration tank 2 and the secondary diafiltration tank 3 are arranged in steps; Filter the water layer 4 and the topsoil layer 5, and send the sewage from the water outlet 61 at the bottom of the sedimentation tank 1 into the first parallel pipeline 71 above the primary infiltration tank 2 near the sedimentation tank 1, and from the lower end of the first parallel pipeline 71 Multiple groups of water outlet holes 8 drip into the water sunflowers planted in the topsoil layer 5 of the first-level infiltration tank 2, and the sewage passes through the...

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Abstract

The invention discloses a high-energy-saving sewage multi-layer percolation purification treatment method which comprises the following steps: collecting sewage passing through a grid fence into a sedimentation tank, adding a flocculating agent for sedimentation for 10 hours, and conveying the sewage to a percolation device for percolation purification, wherein the percolation device comprises a first-stage percolation tank and a second-stage percolation tank, the sedimentation tank, the first-stage percolation tank and the second-stage percolation tank are arranged in a stepped manner; the sewage sequentially passes through the sedimentation tank, the first-stage infiltration tank and the second-stage infiltration tank, and finally, the effluent quality meets the national emission standard; according to the invention, the constructed wetland, the biological treatment technology and the multi-layer percolation technology are effectively combined; the three technologies are organicallycombined and integrated, so that suspended matters, total phosphorus, total nitrogen and ammonia nitrogen in the sewage can be effectively removed, the energy consumption is low, the occupied area issmall, the operation cost is low, the management and maintenance are convenient, the equipment counterfeiting cost is low, the applicable occasions and the applicable terrain range are wide, and the application prospect is good.

Description

technical field [0001] The invention relates to the field of environmental engineering, and more specifically relates to a high-energy-saving sewage multi-layer percolation purification treatment method. Background technique [0002] my country is a country seriously short of water. The per capita water volume is only equivalent to 1 / 4 of the world's per capita water volume. The shortage of fresh water resources has affected the social and economic development in many areas of our country. At the same time, in recent years, my country's water pollution situation has become increasingly serious. Water shortages have made the original shortage of fresh water resources frosty. Controlling water pollution discharge has important practical value and strategic significance for alleviating my country's water resource shortage. For this reason, sewage treatment plants have been built in various regions to centrally treat municipal sewage. However, the concentration of pollutants in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/04C02F3/32
CPCC02F1/001C02F1/283C02F1/5281C02F3/046C02F3/32C02F9/00C02F2001/007C02F2301/08Y02W10/10
Inventor 陈琳胡隐平
Owner 陈琳
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