Portable adsorption treatment plant for low concentration heavy metal sewage in farmland and treatment method of heavy metal sewage

A low-concentration heavy metal, adsorption treatment technology, applied in the direction of water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem that is not suitable for the treatment of low-concentration heavy metal-containing sewage in farmland and occupies a large area , complex process and other issues, to achieve the effect of strong applicability and scalability, fast processing speed and low cost

Pending Publication Date: 2019-01-18
SICHUAN AGRI UNIV
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Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a portable adsorption treatment device for low-concentration heavy metal-containing sewage in farmland, which solve...

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  • Portable adsorption treatment plant for low concentration heavy metal sewage in farmland and treatment method of heavy metal sewage
  • Portable adsorption treatment plant for low concentration heavy metal sewage in farmland and treatment method of heavy metal sewage

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Embodiment 1

[0029] as attached figure 1 As shown, this embodiment discloses a portable adsorption treatment device for farmland low-concentration heavy metal-containing sewage. and generalizability. The portable adsorption treatment device for farmland low-concentration heavy metal-containing sewage of the present invention comprises a water pump 1, a primary adsorption pipeline 2, a secondary adsorption pipeline 3, a first pipeline 4 and a second pipeline 5, and the outlet end of the water pump 1 is connected to the primary adsorption pipeline. The inlet end of pipeline 2 is connected through first pipeline 4, and the outlet end of described primary adsorption pipeline 2 is connected with the inlet end of secondary adsorption pipeline 3 through second pipeline 5; The outlet end of described secondary adsorption pipeline 3 is connected with Outlet pipeline 6; the pipe diameter of described first pipeline 4, second pipeline 5 is all less than the pipe diameter of primary adsorption pipeli...

Embodiment 2

[0033] This embodiment discloses a method for the treatment of farmland low-concentration heavy metal-containing sewage, which is carried out by using the device described in Embodiment 1, including the following steps:

[0034] Step A. Primary adsorption treatment: farmland low-concentration heavy metal sewage enters the primary adsorption pipeline under the action of the water pump, and under the action of quartz sand, fine sediment particles and a small part of heavy metal ions in the sewage are removed;

[0035] Step B. Secondary adsorption treatment: The sewage after the primary adsorption treatment enters the secondary adsorption pipeline through the second pipeline, and under the action of the mixed adsorbent, the heavy metal ions in the sewage are removed, and then discharged through the outlet pipeline.

[0036] Among them, the low-concentration heavy metal sewage from the farmland is first separated from the mud and water, and then enters the primary adsorption pipeli...

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Abstract

The invention discloses a portable adsorption treatment plant for low concentration heavy metal sewage in farmland and a treatment method of the heavy metal sewage, and solves the problems that the heavy metal wastewater adsorption device is high in cost, large in floor space, and complicated in process, and is unsuitable for low-concentration heavy metal sewage treatment in farmland in the priorart. The treatment plant disclosed by the invention comprises a water pump, a first stage adsorption pipeline, a second stage adsorption pipeline, a first pipeline and a second pipeline, wherein an outlet end of the water pump is connected with an inlet end of the first stage adsorption pipeline via the first pipeline, and an outlet end of the first stage adsorption pipeline is connected with an inlet end of the second stage adsorption pipeline via the second pipeline; the outlet end of the second stage adsorption pipeline is connected with a water outlet pipe; the first stage adsorption pipeline is filled with quartz sand, and the second stage adsorption pipeline is filled with a mixed adsorbent of activated carbon and zeolite. The portable adsorption treatment plant has the advantages ofscientific design, simple structure, low cost, convenient carrying and transferring, easy replacement of the filler and fast processing speed, and has strong applicability and generalizability.

Description

technical field [0001] The invention relates to the technical field of farmland low-concentration heavy metal-containing sewage treatment, in particular to a portable adsorption treatment device and a treatment method for farmland low-concentration heavy metal-containing sewage. Background technique [0002] With industrial development and economic growth, soil heavy metal pollution has gradually become a major global concern, and heavy metal pollution in farmland soil is directly related to human health, food safety and other issues. Due to rainwater leaching, agricultural irrigation and other reasons, heavy metal-contaminated soil will produce a large amount of low-concentration heavy metal-containing sewage, which will pollute groundwater and rivers. Although the heavy metal ions entering the water body have a low concentration and are not highly toxic, they are difficult to degrade and can produce more toxic organic compounds, such as methylmercury, under the action of m...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F101/20
CPCC02F1/281C02F1/283C02F2101/20
Inventor 张世熔冯伟进刘西萌王怡君张瑞琪钟钦梅冯灿马小杰王贵胤潘小梅徐小逊
Owner SICHUAN AGRI UNIV
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