期刊论文

Effect of Thermal Desorption on Fluoranthene-contaminated Soil and Its Subsequent Use

中文

环境科学与技术

1003-6504

2020

43

3

146-151

10.19672/j.cnki.1003-6504.2020.03.020

国家重点研发计划：重点行业场地污染形成机制与源解析（2018YFC1800400）；

本校为第一机构

为探究热脱附参数对荧蒽去除效率的影响及热脱附后土壤后续利用类型,文章采用异位修复试验,将荧蒽污染土壤在不同温度(100~500 ℃)和不同处理时间(10~80 min)下进行热脱附处理,运用扫描电镜(SEM)和傅里叶红外光谱(FT-IR)对不同处理条件下的土壤进行性质表征,测定修复前后土壤理化性质。研究结果表明:土壤荧蒽去除率随温度(100~500 ℃)的增加而增加,但在300~ 500 ℃区间内去除率增幅较小。在300 ℃时荧蒽去除率已达80%。土壤荧蒽去除率在0~50 min内随热脱附时间的增大而增大,在50 min时热脱附反应平衡。综合土壤荧蒽去除率和能耗考量,选择300 ℃和50 min作为热脱附荧蒽适宜参数,此时土壤荧蒽去除...

In order to explore the influence of thermal desorption parameters on the removal efficiency of fluoranthene and the subsequent types of soil use after thermal desorption, ectopic remediation experiments were used to contaminate the soil contaminated with fluoranthene at different temperatures (100~500 ℃) and different treatment times (10~80 min), thermal desorption treatment was performed, and scanning electron microscope and Fourier infrared spectroscopy were used to characterize the soil under different treatment conditions, and the physica...