摘要
文章研究了Fe0的纯度、粒径和投加量以及酸洗预处理对水溶液中四氯化碳的还原性脱氯作用的影响,并对其脱氯的主要产物——氯仿进行了讨论。结果表明:(1)Fe0纯度越高,粒径越小,四氯化碳的去除效果越好;(2)在实验范围内,Fe0投加量越大,四氯化碳的去除效率越高;(3)酸洗后,四氯化碳的去除效果明显的提高;(4)Fe0纯度、粒径和投加量以及酸洗处理对四氯化碳的还原产物氯仿亦具有一定的影响,四氯化碳的去除与氯仿的产生之间存在着一定的对应关系。
Influences of Fe^0 purity, particle size, amount and acid-washing pretreatment on reductive dechlorination of CT in water solution as well as its main degradation product-chloroform were studied. Results indicated that better removal efficiency of CT was obtained with higher Fe^0 purity and smaller Fe^0 size. With more Fe^0 amount was added, higher removal efficiency of CT was got. After acid-washing pretreatment, removal efficiency of CT was improved obviously. Fe^0 purity, particle size, amount and acid-washing pretreatment of Fe^0 had some effect on degradation product of chloroform, which had some corresponding relationship with removal of CT.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第12期8-10,共3页
Environmental Science & Technology
基金
国家自然科学基金项目(40373044)
江苏省高等学校研究生创新计划项目(2005-70)
中国矿业大学科技基金项目(2006B021)
关键词
零价铁
四氯化碳
氯仿
去除效果
zero-valent iron
carbon tetrachloride
chloroform
removal efficiency
