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Permeable reactive barrier for groundwater pollution remediation and treatment method of permeable reactive barrier

A technology for osmotic reaction walls and groundwater pollution, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of increasing pollution repair costs, pumping cannot be removed, and cannot fundamentally Remove contamination components and other problems to achieve the effect of improving the repair effect

Active Publication Date: 2015-09-02
HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although extraction treatment is widely used in groundwater remediation, as a long-term groundwater treatment method, it has the following disadvantages: ① Extraction treatment can only limit the diffusion of pollution, and cannot fundamentally remove the pollution components, especially for non-aqueous phase Liquids are almost impossible to remove by pumping; ② Long-term pumping requires continuous energy supply, and at the same time, system maintenance and monitoring also increase the cost of pollution remediation; ③ Pollution sources cannot be sealed, nor can the spread of pollution plumes be restricted

Method used

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  • Permeable reactive barrier for groundwater pollution remediation and treatment method of permeable reactive barrier

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Embodiment 1

[0035] Such as figure 1 , figure 2 Shown, a kind of groundwater pollution restoration of the present invention strengthens microbial complex enzyme permeable reaction wall and method, comprises and is made up of upstream permeable water inlet wall 1, downstream permeable filtered water wall 2, and brick walls 3 on both sides The wall cavity 4 is provided with a partition 5 inside the wall cavity 4, and the partition 5 divides the upper space of the wall cavity 4 into a reaction zone 4-1 and an enhanced microbial enrichment zone 4-2, the The bottom of the reaction zone 4-1 and the enhanced microbial enrichment zone 4-2 is communicated; the mixed mud packing bed 6 is provided in the described reaction zone 4-1, and the intensified microbial enrichment zone 4-2 is equipped with a A combination of fillers for microorganisms 7. In addition, sampling tubes 8 are respectively arranged in the reaction zone 4-1 and the enhanced microbial enrichment zone 4-2, and a movable cover plat...

Embodiment 2

[0044] Take the repair of arsenic pollution as an example:

[0045] Industrial production, mining and smelting of non-ferrous metal ore (arsenic ore and arsenic-associated ore) are the main sources of arsenic pollution. Arsenic can be used in metallurgical and semiconductor industries, such as gallium arsenide and copper arsenide. Therefore, the discharge of arsenic-containing wastewater and waste residue from chemical industry, smelting, electronic industry and mines is an important source of arsenic pollution in groundwater.

[0046] Apply the present invention to a heavy metal slag dump in a non-ferrous metal industrial park in Hunan. Downstream arsenic-contaminated groundwater for remediation. Arsenic pollution can be oxidized and reduced by microorganisms, and can also be reduced by microbial sulfate to form precipitates after the action. Chemolithoautotrophic and Chemoorganoheterotrophic were implanted in the enhanced microbial flora. These two genera have detoxificat...

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Abstract

The invention belongs to the field of groundwater pollution remediation and relates to a permeable reactive barrier for groundwater pollution remediation and a treatment method of the permeable reactive barrier. The permeable reactive barrier comprises a barrier cavity (4) formed by an upstream permeable water inlet wall (1), a downstream permeable filtering water outlet wall (2) and brick walls (3) on two sides, a partition plate (5) is arranged in the barrier cavity (4) and partitions an upper space of the barrier cavity (4) into a reaction area (4-1) and a strengthened microorganism enrichment area (4-2), and the reaction area (4-1) is communicated with the bottom of the strengthened microorganism enrichment area (4-2). According to the treatment method, waste water to be treated flows through the permeable reactive barrier. The permeable reactive barrier for groundwater pollution remediation and the treatment method have the advantages of small influence on environment, simplicity and convenience in operation, low treatment cost, stability in operation, good effect and no secondary pollution.

Description

technical field [0001] The invention belongs to the field of groundwater pollution restoration, and relates to a permeable reaction wall for groundwater pollution restoration and a treatment method thereof. Background technique [0002] Groundwater is an important source of fresh water and drinking water, which has very high economic value and ecological value, and is an important basis for human survival and social development. [0003] In recent years, the rapid expansion of cities in my country has led to a large increase in urban sewage discharge. Due to insufficient capital investment, the construction of pipe networks is relatively lagging behind, and maintenance is not timely. Thoroughly, sewage overflows with rainwater during the flood season, leading to groundwater pollution. [0004] Some industries threaten the safety of the groundwater environment, and groundwater pollution is mainly caused by industrial hazardous waste storage, landfill, mining, petrochemical in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
Inventor 游建军钟儒波李智胡志鑫唐传祥
Owner HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECH
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