碱活化过硫酸盐在多环芳烃类污染场地土壤修复中的应用  

Application of Alkali Activated Persulfate in Soil Remediation of Polycyclic Aromatic Hydrocarbon Contaminated Sites

作　　者：姜祖明 魏鹏 路青 郑伟 李修强 赵加袁 JIANG Zuming;WEI Peng;LU Qing;ZHENG Wei;LI Xiuqiang;ZHAO Jiayuan

机构地区：[1]南京城建土地整理开发有限公司,江苏南京210020 [2]光大环境修复(江苏)有限公司,江苏南京211100

出　　处：《化工设计通讯》2025年第3期120-122,共3页Chemical Engineering Design Communications

摘　　要：以多环芳烃类污染土壤为研究对象,通过文献调研及污染场地中试试验进行研究。碱活化过硫酸盐化学氧化修复方法在药剂的扩散半径为0.5 m、2%过硫酸钠及液体氢氧化钠(32%)的试验条件下,试验的结果表明:土壤pH由7.04上升至10.29后呈现下降趋势,在试验10 d后稳定在7.00左右;土壤多环芳烃污染物浓度呈现下降趋势,在试验10 d后均达到修复目标值,针对多环芳烃类污染场地的土壤修复具有较好的修复效果。This article takes soil contaminated with polycyclic aromatic hydrocarbons as the research object,and conducts comprehensive literature research and pilot tests on contaminated sites.Under the experimental conditions of a diffusion radius of 0.5 m,2%sodium persulfate,and liquid sodium hydroxide(32%)dosage,the alkaline activated persulfate chemical oxidation remediation method showed that the soil pH increased from 7.04 to 10.29 and then showed a downward trend,stabilizing at around 7.00 after 10 days of the experiment;The concentration of polycyclic aromatic hydrocarbon pollutants in soil showed a decreasing trend and reached the remediation target value after 10 days of the experiment.Soil remediation for polycyclic aromatic hydrocarbon contaminated sites has a good remediation effect.

关 键 词：多环芳烃 土壤污染 碱活化过硫酸盐 原位化学氧化 

分 类 号：X703[环境科学与工程—环境工程]