Microwave leaching type soil remediation evaluation device and evaluation method

Abstract

The invention discloses a microwave leaching type soil remediation evaluation device and method, and belongs to the technical field of pollutant removal equipment. The evaluation device comprises a temperature control cylinder used for containing soil and capable of controlling the soil temperature, and a microwave heating unit and an ultraviolet light source are arranged in the temperature control cylinder, the top of the temperature control cylinder is provided with a leaching port used for spraying an oxidizing agent or contrast liquid to the soil, and the temperature control cylinder is further provided with an exhaust port capable of being connected with a gas detection system and a liquid phase outlet connected with a liquid phase detector; soil is heated through microwaves, the microwaves excite an ultraviolet light source to emit ultraviolet light to conduct digestion treatment on volatile gas of the soil, organic pollutants are further oxidized through a sprayed oxidizing agent, and pollutant components and concentrations in a gas phase and a liquid phase are detected through a gas detection system and a liquid phase detector. By analyzing migration and transformation of organic pollutants in a solid-liquid-gas multi-scale environment, a migration and transformation rule of the pollutants from soil to a gas phase and between the soil and a liquid phase is obtained.

Description

technical field [0001] The invention belongs to the technical field of pollutant removal equipment, and in particular relates to a microwave leaching type soil restoration evaluation device and an evaluation method. Background technique [0002] With the aggravation of soil organic pollution, the remediation of organic polluted solid waste is one of the key means for the recovery of soil organic pollution. [0003] After entering the environmental system, organic pollutants will stay for a long time, not only can be transported over long distances, but also can be transported in soil, water, air, etc. The migration and distribution among environmental media such as sediments and sediments will eventually form a concentration field that exists in a certain space-time distribution form, so that the organisms in the environment, including human beings, are exposed to pollutants through different ways, posing a serious threat to human health. [0004] Therefore, the research on...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a microwave leaching type soil remediation evaluation device and evaluation method, aiming to solve the problem that the migration and transformation of pollutants in the soil cannot be accurately studied in the above-mentioned prior art, including multi-scale interface movement, oxidant to Evaluation of the oxidation effect of organic pollutants in soil, the effect of microwave non-thermal effect on soil pollutants, etc.

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