摘要
摇蚊幼虫经常出现在以地表水为水源的源水中,其适应力强,易于在水处理构筑物中筑巢,成为饮用水安全面临的新问题.通过实验室驯化培养,研究了西安地区地表水中摇蚊幼虫的生长习性,并利用次氯酸钠、过氧化氢、高锰酸钾、二氧化氯和臭氧等几种常用氧化剂对其进行了灭活试验,研究了在不同投药量、pH值、接触时间下比较几种药剂的灭活效果.结果表明,臭氧灭活效果最佳,1.5 mg/L投量即可达到完全灭活;其他几种药剂灭活效果较差.
The emergence of chironomid larvae in water treatment units is bothering municipal water supply practice in these years. These always floated into the plant with the inflow of surface water and pipes in the units. After collecting the larvae samples, we have provided an optimum habitat for chironomid population incubation in lab. and observed their habits and characteristics. Sodium hypochlorite （NaCIO）, hydrogen peroxide （H2O2 ）, potassium permanganate （KMnO4）, chlorine dioxide （ClO2）, ozone （O3） are used to inactivate and kill the midge larvae at different dosage, pH and contact time. It turned out that the inactivation effect of ozone is better than others. Under 30 min of contact time and at a dosage of 1.5 mg/L, ozone could kill the larvaes completely.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2006年第3期420-424,共5页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
国家教育部高等学校优秀青年教师教学科研计划资助项目(2002-397)
西安市城乡建设委员会科技计划项目
关键词
摇蚊幼虫
灭活
氧化
Chironornid larvae
inactivation
oxidation
