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Sewage infiltration 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 withered aquatic plants, so as to achieve pollution-free discharge, high ornamental value, and suspended solids. Reduced effect

Inactive Publication Date: 2018-08-10
HECHI UNIV
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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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  • Sewage infiltration purification treatment method

Examples

Experimental program
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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 sewage infiltration purification treatment method. Sewage passing a grating is collected into a settling tank, flocculating agents are added and settled for 12-36 hours, thesewage is conveyed to an infiltration device, infiltrated and purified, the infiltration device comprises a primary infiltration tank and a secondary infiltration tank, the settling tank, the primaryinfiltration tank and a secondary infiltration tank are stepped, the sewage sequentially passes the settling tank, the primary infiltration tank and the secondary infiltration tank, and finally, effluent quality meets national discharge standards. A constructed wetland technology, a biological treatment technology and a multilayer infiltration technology are effectively and organically combined and integrated, suspended matters, total phosphorus, total nitrogen and ammonia nitrogen in the sewage can be effectively removed, and the method is low in energy consumption, small in occupied area, low in operation cost, convenient in management and maintenance, low in equipment counterfeiting cost and wide in applicable place and applicable landform range and has a good application prospect.

Description

technical field [0001] The invention relates to the field of environmental engineering, and more specifically relates to a sewage 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 the tail water after effluent d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/281C02F1/283C02F1/286C02F1/5236C02F1/5281C02F3/32C02F3/34C02F9/00C02F2101/105C02F2101/16C02F2101/30C02F2301/08C02F2303/14
Inventor 张银君
Owner HECHI UNIV
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