Movable type contaminated soil remediation system adopting recirculating fluidized bed

Abstract

The invention relates to a movable type contaminated soil remediation system adopting a recirculating fluidized bed, belonging to mechanical equipment. The remediation system takes the recirculating fluidized bed as a reactor; three drug feeding ways of gas state, liquid stage and solid stage, and two heat tracing devices are arranged, so that the contaminated soil can be rapidly remedied by adopting remediation drugs of different states and kinds at different temperatures and pressures according to the characteristics of the contaminated soil, and the movable type contaminated soil remediation system is not only suitable for various soils contaminated by volatile organic compound, semi-volatile organic compound, polycyclic aromatic hydrocarbon, polychlorinated biphenyl, petroleum hydrocarbon, pesticide, heavy metals and the like, but also not limited by types of solid, liquid or gas drugs. The movable type contaminated soil remediation system adopting the recirculating fluidized bed is reasonable in structural layout, convenient in moving, wide in scope of application, high in reaction speed, good in flexibility, and safe and stable in operation, is economically feasible, can be suitable for large-scale centralized processing of the contaminated soil as well as in-situ remediation, thereby having excellent environmental protection benefit and social benefit.

Description

technical field [0001] The invention relates to a mobile circulating fluidized bed polluted soil remediation system, which belongs to the category of mechanical equipment. Background technique [0002] With the rapid development of social economy, the problem of soil pollution is becoming more and more serious. However, my country's soil pollution control foundation is very weak, and there is a lack of mature, applicable, economically feasible, safe and reliable contaminated soil remediation technologies and equipment. At present, the existing domestic contaminated soil remediation technologies mainly include phytoremediation, animal remediation, microbial remediation, electric remediation, steam extraction, air aeration, solar detoxification, etc., but there are the following problems: [0003] 1. The existing soil remediation technology is basically in the experimental stage and has not yet been applied in large-scale projects. [0004] 2. Existing contaminated soil reme...

AI Technical Summary

Problems solved by technology

[0003] 1. The existing soil remediation technology is basically in the experimental stage and has not yet been applied in large-scale projects

[0004] 2. Existing contaminated soil remediation technologies have strong selectivity for soil pollution types and poor universality

However, due to the fact that most of the polluted sites in my country are characterized by complex pollution, the remediation methods with strong selectivity to pollutants cannot meet the remediation requirements of complex polluted soils.

[0005] 3. The existing contaminated soil remediation technology generally has a slow response speed and a long remediation period

[0006] 4. Existing contaminated soil remediation technologies generally have specific requirements for the form of agents, some can only use solid agents, some can only use liquid agents, and some can only use gaseous agents

[0007] 5. Some existing contaminated soil remediation technologies can only remediate the soil, which is costly and economical

[0008] In short, the existing contaminated soil remediation technology has many limitations, small scope of application, and poor universality.

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