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Experimental device and method for contaminated soil thermal remediation feasibility study

A technology of polluted soil and experimental equipment, which is applied in the field of soil and groundwater pollution restoration, can solve problems such as difficulty in achieving restoration effects, loss of energy consumption in restoration projects, and increase in restoration costs, and achieves strong remodelability, convenient maintenance and management, and short operating cycles. short effect

Inactive Publication Date: 2017-09-08
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the technical parameters in the actual project are unreasonable, it may lead to a great loss of energy consumption in the repair project, and the repair cycle will be prolonged, which will greatly increase the repair cost and make it difficult to achieve the expected repair effect

Method used

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  • Experimental device and method for contaminated soil thermal remediation feasibility study
  • Experimental device and method for contaminated soil thermal remediation feasibility study
  • Experimental device and method for contaminated soil thermal remediation feasibility study

Examples

Experimental program
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Effect test

Embodiment 1

[0031]An experimental device for feasibility study of thermal remediation of polluted soil, comprising an air intake module, a heating module, an extraction and condensation module, and an exhaust gas treatment module connected by pipelines in sequence; the air intake module includes an air compressor 1, a pressure Regulating valve 2, gas flowmeter 3, intake pipe 4, the first ball valve 5 is provided on the intake pipe 4; Described heating module comprises heating equipment 6, thermal reactor 7, heating equipment thermocouple 8, soil thermocouple 9 and Thermocouple data logger 10, the top of heating equipment 6 is provided with the hole that feeds air intake pipe 4, air outlet pipe 11, heating equipment thermocouple 8 and soil thermocouple 9 to penetrate, and thermal reactor 7 is arranged in heating equipment 6, and thermal reaction Device 7 is made up of thermal reactor tank 22 and the thermal reactor cover 23 that is located at its top, thermal reactor cover 23 is provided wi...

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PUM

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Abstract

The invention relates to an experimental device and method for contaminated soil thermal remediation feasibility study. The experimental device comprises an air inlet module, a heating module, an extraction condensation module and a tail gas treatment module. The contaminated soil thermal remediation feasibility study experimental method can carry out a thermal remediation feasibility experiment on different contaminated soils, and in situ thermal remediation feasibility is clarified by analyzing concentrations of concerned pollutants in soil before and after the experiment, a gas sample and a condensate sample which are collected during the experiment as well as composition and mass of pollutants in activated carbon after the experiment. The experimental device and method which are provided by the invention are applicable to optimization of in situ contaminated soil thermal remediation feasibility analysis and have important guidance on optimization of key technical parameters, such as target temperature, heating time, extraction rate and a tail gas treatment scheme, of in situ thermal remediation site engineering.

Description

technical field [0001] The invention relates to the field of soil and groundwater pollution restoration, in particular to an experimental device and method for feasibility study of thermal restoration of polluted soil. Background technique [0002] With the promulgation of the "Soil Pollution Prevention and Control Action Plan", the State Council and governments at all levels have paid more attention to the investigation and restoration of polluted sites. At present, there are many contaminated sites in China, but the soil remediation technology is relatively backward, and the non-standard application of technology has also brought many problems to the soil remediation industry. [0003] Soil remediation technologies include microbial remediation, phytoremediation, chemical redox, electrodynamic remediation, gas phase extraction and thermal remediation, etc. Soil thermal remediation technology has wide applicability to pollutant removal, and can remove multiple pollutants...

Claims

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Application Information

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IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 宋昕丁达魏昌龙陈星任家强唐洪涛吕正勇
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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