生物表面活性剂对矿区污染土壤淋洗效果研究  

Study on Leaching Effect of Contaminated Soil in Mining Area by Biosurfactant

作　　者：雷国建 聂静 文波 李栎 汪才友 汪才超 王超 Lei Guojian;Nie Jing;Wen Bo;Li Li;Wang Caiyou;Wang Caichao;Wang Chao(Hu’nan Guozhong Environmental Technology Co.,Ltd.,Changsha 410208;Jiangxi Organic Environmental Technology Co.,Ltd.,Nanchang 330096,China)

机构地区：[1]湖南国重环境科技有限责任公司,湖南长沙410208 [2]江西有机环境科技有限公司,江西南昌330096

出　　处：《广东化工》2022年第9期113-115,共3页Guangdong Chemical Industry

摘　　要：本研究以广东省韶关市曲江区大宝山矿区内污染区域的土壤样品为研究对象,对其基本理化性质进行分析,通过单因子指数法和内梅罗指数综合指数分析法对土壤污染程度进行分析评价,确定供试土壤中的主要污染物来源为Pb和Zn。研究选用天然型表面活性剂茶皂素作为土壤淋洗剂进行土壤震荡实验,同时以超纯水为对照,探究不同浓度(1%~6%)和不同pH值(2-7)的茶皂素对土壤中Pb和Zn的淋洗效果。结果表明,在pH为2,浓度为4%时达到最佳,解吸率分别为31.66%和38.65%。This research takes soil samples from the contaminated area in the Dabaoshan mining area in Qujiang District,Shaoguan City,Guangdong Province as the research object.First,analyze its physical and chemical properties,and then analyze and evaluate the degree of soil pollution through the single factor index method and the Nemero index comprehensive index analysis method.The main pollutants in the tested soil were determined to be Pb and Zn.The natural surfactant tea saponin was used as a soil leaching agent for shaking experiments,and ultrapure water was used as a control to explore the effects of tea saponin of different concentrations(1%~6%)and different pH values(2~7)on the soil.The leaching effect of Pb and Zn can achieve the best when the pH is 2 and the concentration is 4%,and the desorption rates are 31.66%and 38.65%,respectively.

关 键 词：生物表面活性剂 茶皂素 矿区污染土壤 淋洗 指数分析 

分 类 号：TQ[化学工程]