Remediation method of heavy metal polluted sediment

A technology of polluted sediment and restoration method, applied in sludge treatment, sludge detoxification, water pollutants and other directions, can solve the problems of reduced utilization efficiency, limited application, secondary pollution, etc., to improve utilization efficiency and prevent agglomeration effect, the effect of improving dispersibility
CN106986514BActive Publication Date: 2020-02-11沃邦环保有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
沃邦环保有限公司
Publication Date
2020-02-11

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Abstract

The invention discloses a remediation method of heavy metal contaminated bottom sludge. The remediation method includes the steps of firstly, moving out and dewatering the heavy metal contaminated bottom sludge; secondly, using a solid-phase conditioner to condition the contaminated bottom sludge; thirdly, using a liquid-state stabilizer to reduce heavy metal in the contaminated bottom sludge. The remediation method is low in cost, good in effect, high in efficiency, environmentally friendly, and the like.
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Description

technical field

[0001] The invention relates to the technical field of bottom mud restoration and treatment, in particular to a restoration method for heavy metal polluted bottom mud. Background technique

[0002] In industrial areas such as mineral processing, smelting, chemical industry, and electroplating, the wastewater generated by these industries will inevitably be discharged into the surrounding environment, especially the water body. Therefore, heavy metals are the main pollutants in the water body sediment in these areas. Through adsorption, complexation, precipitation, etc., the water phase is transferred to the solid phase, and finally deposited in the sediment and gradually enriched, so that the content of heavy metals in the sediment is often several orders of magnitude higher than that in the water. When the environment changes, the sediment The heavy metals in the mud can easily re-enter the water body, causing secondary pollution, endangering the benthos of ...

Claims

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