Device and technological method for repairing organic contaminated soil and underground water

Abstract

The invention relates to a device and technological method for repairing organic contaminated soil and underground water. The device comprises an ultrasonic transmitting device and a microorganism reactor. The ultrasonic transmitting device is arranged in a drilled hole in the organic contaminated soil to be repaired, and the depth of the drilled hole ranges from 6.5 m to 7.0 m. After ultrasonic pretreatment is finished, the ultrasonic transmitting device is taken out, and a water inlet pipeline and a water outlet pipeline of the microorganism reactor are arranged in the drilled hole. The underground water of the organic contaminated soil is pumped into the microorganism reactor by a self-priming pump to be treated. After treatment is finished, the underground water is recharged underground. The device is simple in design, compact in connection and convenient to use. The combined technology of adopting ultrasonic pretreatment and a microorganism reinforcement reaction for carrying out in-situ remediation on the degradation-resistant macromolecule organic contaminated soil and the underground water is adopted; treatment cost is greatly lowered; the soil structure is not damaged; the normal function of the oil is not influenced; secondary contamination to the soil is avoided; and environment protection is achieved.

Description

technical field

[0001] The invention relates to a device and a process method for remediating organic polluted soil and groundwater, and belongs to the technical field of organic polluted soil remediation. Background technique

[0002] At present, in the manufacturing industry, such as chemical industry, coking, pharmaceuticals, pigment synthesis, wood preservatives, plastic manufacturing, herbicide and insecticide manufacturing, mining industry, etc., a large amount of organic pollutants containing toxic chemicals will be produced. These organic pollution also seriously pollute the soil. With the rapid development of industrialization and urbanization in our country, a large number of industrial polluted sites have been left behind by the closure and relocation of polluting enterprises. In addition, the policies of "retreating from the second to the third" and "retreating from the city to the park" implemented by the state have led to a large number of abandoned sites in t...

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