姜文超;

• 1:上海市政工程设计研究总院(集团)有限公司

摘要(Abstract)：

为提高低温热脱附技术对土壤高沸点多环芳烃污染物的去除效果，在电加热炉和土壤加热箱中分别模拟热脱附耦合过硫酸盐(PS)热氧化降解苯并[a]芘(Bap)的效果研究。结果表明：序批式试验中，在60℃条件下热活化PS可有效降解土壤中Bap污染物，120 min内去除率为48.4%,远优于单独PS氧化或单独热脱附的效果；Bap降解效果随着温度提高(40～90℃)、PS浓度增大(0.05～0.5 mol/L)以及水土质量比升高(0.5/1～2/1)而提高。在应用试验中，氧化剂PS的循环注入一定程度上影响了土壤升温速率，但在较高PS浓度注入下加热箱中各取样点位Bap的残留均能达到修复要求(<0.55 mg/kg);PS的持续分解表明热脱附耦合PS修复技术具有持续性。

关键词(KeyWords)： 环境工程学;热脱附;过硫酸盐;多环芳烃;土壤修复;序批式试验

Abstract:

Keywords:

基金项目(Foundation): 上海市科研计划项目(19DZ1205205);; 上海市科技人才计划项目(19QB1405300)

作者(Authors): 姜文超;

DOI: 10.13637/j.issn.1009-6094.2021.1884

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