System and method for restoring heavy metal polluted water body in river channel
A water body remediation and heavy metal technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of low remediation rate and small remediation amount, and achieve the effect of high-efficiency remediation
Inactive Publication Date: 2019-05-14
ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
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However, these methods have problems such as small amount of repair and low repair rate.
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[0026] A river channel heavy metal polluted water restoration system, comprising:
[0027] The water body treatment pool 3 is connected to the upstream of the river channel 22 through the first pipeline 1, and the water body treatment pool 3 is divided into a dosing pool 11, a sedimentation tank 12 and Filter tank 13, the filter tank 13 is provided with filter device;
[0028] A servo motor 8 is fixedly installed on the dosing pool 11 through the horizontal plate 6, and the auger 7 at the output end of the servo motor 8 penetrates the horizontal plate 6 and extends into the dosing pool 11;
[0029] The artificial wetland system 20 includes a first-level wetland 17, a second-level wetland 18 and a third-level wetland 19, the first-level wetland 17, the second-level wetland 18 and the third-level wetland 19 are arranged in terraces with successively lower heights, and the first-level The wetland 17 is connected to the filter pool 13 through the second pipeline 5 , and the terti...
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The invention discloses a system for restoring a heavy metal polluted water body in a river channel. The system comprises a water body treatment tank and a artificial wetland system, wherein the waterbody treatment tank is connected to the upstream of a river channel through a first pipeline, and is sequentially divided into a dosing tank, a sedimentation tank and a filter tank through a first partition plate and a second partition plate, and a filtering device is arranged in the filter tank; a servo motor is fixedly arranged on the dosing tank through a transverse plate, and an auger at theoutput end of the servo motor extends into the dosing tank by penetrating through the transverse plate; and the artificial wetland system comprises a first-level wetland, a second-level wetland and athird-level wetland which are arranged in a form of terraced fields with successively lower heights, the first-level wetland is connected to the filter tank through a second pipeline, and the third-level wetland is connected to the upstream of the river channel through a pipeline. The system provided by the invention realizes the joint treatment of sewage and sludge and achieves high-efficiency restoration of the heavy metal polluted water body in the river channel.
Description
technical field [0001] The invention belongs to the technical field of heavy metal-polluted water restoration systems in river courses, and in particular relates to a restoration system and method for heavy metal-polluted water bodies in river courses. Background technique [0002] Heavy metals are one of the potentially harmful pollutants in water bodies. When the water environment changes, the deposited heavy metals are re-released into the overlying water through a series of physical, chemical and biological processes, resulting in "secondary pollution" of the water body. [0003] At present, the water heavy metal restoration technology at home and abroad is in its infancy. Generally, the remediation technologies for heavy metal pollution in water include river dilution method, chemical coagulation adsorption method, ion reduction exchange method, biological remediation method, electrokinetic remediation method and biofilm remediation method. However, these methods have...
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IPC IPC(8): C02F9/14
Inventor 张英李查清汪国平王雨萱
Owner ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER