Plant microorganism combination remediation soil and shallow groundwater organic pollutant system

Abstract

The invention relates to a plant microorganism combination remediation soil and a shallow groundwater organic pollutant system, comprising a treating groove, plant remediation floating beds, an embedding immobilized microorganism processing film, a star-type aerating apparatus and a tail gas treatment device, wherein the system is remediated by the treating groove, the plant remediation floating beds, the embedding immobilized microorganism processing film, the star-type aerating apparatus and the tail gas treatment device; the treating groove is supported by a mesh supporting wall; the plantremediation floating beds are sampled mutually connected; the embedding immobilized microorganism processing film is fixed at a position 1.5m away from the bottom of the treating groove; and the star-type aerating apparatus is connected with the tail gas treatment device by a pipeline. The advantages are as follows: with relative simple design, the system is more convenient to carry out; the groundwater with organic pollutants has the characteristics of high efficiency, economy and non secondary pollution; the range for remediating underwater is wide; the variety of the removable pollutant isvery wide; and the system is applied to treating municipal sewage and domestic sewage.

Description

【Technical field】 [0001] The invention relates to the technical field of soil and groundwater pollution restoration, in particular to a plant-microbe joint restoration system for organic pollutants in soil and shallow groundwater. 【Background technique】 [0002] Groundwater pollution has become an environmental problem that cannot be ignored. At present, many soils and shallow groundwater in our country are seriously polluted by organic matter. The types of pollutants are complex, the concentration far exceeds the standard, and the existence of free phase is even detected. The pollution situation has far exceeded the natural attenuation and repair ability of the soil and groundwater system. Among the three types of soil and groundwater pollution, organic pollution has surpassed heavy metal pollution and radioactive pollution, and has become the main form of groundwater pollution. Among them, the pollution and remediation of organic chlorinated olefins in groundwater have bec...

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Problems solved by technology

Fe is often used for metal reduction research. According to the above-mentioned chemical remediation technology, the chemical method has a relatively high treatment rate for TCE under suitable conditions, but the treatment cost is relatively high, and there are certain requirements for the control of reaction conditions.

[0004] In practice, it is found that the use of a single remediation method often cannot quickly and effectively control the diffusion and migration of organic pollution in the soil and groundwater environment. On the contrary, it will lead to aggravated environmental pollution and increase the difficulty of governance, which not only threatens the safety of drinking water in the surrounding areas, but also increases the water cost of enterprises And it may lead to the occurrence of chronic poisoning or even acute poisoning of residents

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