燃气热脱附中抽提管对于土壤温度的影响

Effects of Extraction Tube on the Temperature of the Soil during the Gas Thermal Remediation

摘要: 燃气热脱附技术是一种修复场地有机物污染的非常有效的土壤修复技术。国内有许多成功案例，但对于燃气热脱附技术的温度研究还不多。本文以某华北地块为例，旨在研究燃气热脱附技术中抽提管对于土壤温度变化的影响。研究表明：抽提管的布设位置、布设方式以及抽提效果都会对土壤温升造成影响，抽提管对于浅层、中层土壤温度升温是有益，而对于深层土壤升温影响效果较弱。

Abstract: Gas thermal remediation technology is a kind of soil remediation technology, which has a good effect on organic pollutants in soil. There are many successful cases in China, but there are few researches on the mechanism of gas thermal remediation technology. This paper, taking a soil in North China as an example, aims to study the effect of extraction well with the process of soil temperature change in gas thermal remediation. The results show that the location and the design pattern of the extraction tube have an effect on the soil temperature rise, and the extraction tube is beneficial to the rising temperature of the shallow and the middle soil, but weak in the rising temperature of the deep soil.