摘要
针对应急性杀藻需求,采用纳米材料研制了纳米杀藻布并对其进行了实验室和小型现场杀藻试验.结果显示,当纳米布面积为0.08cm2.mL-1藻液时,光照3 000 lx下处理24h,藻悬浮液中微囊藻(Microcystis aeruginosa)、鱼腥藻(Anabaena7120)、裸藻(Euglena gracilis)、衣藻(Chlamydomonas reinhardtii)的细胞密度分别下降了77%、69.1%、89.1%和56.9%,硅藻舟型藻(Navicula incerta)的叶绿素下降了18.7%.在无锡五里湖水华发生现场小试结果显示处理1d可使水体Chla的水平下降76%.鱼类急性毒理测试显示该材料无毒性.
A nanomaterial algaecidal sheet was prepared for algaeeidal treatment. The results of algaeeidal activity of the nanomaterial algaecidalsheet in lab and field experiments were investigated. It was showed that under the ratio of the area of nanomaterial algaecidal sheet to the volume of algal cell suspension at 0.08cm^2·mL^-1 and light intensity at 3 000 lx, the cell density of algal cell suspension of Microcystis aeruginosa, Anabaena 7120, Euglena gracilis, and Chlamydomonas reinhardtii decreased by 77%, 69.1%, 89.1% and 56.9 % respectively after 24h treatment, and Chla concentration of algal cell suspension of Navicula incerta decreased by 18.7%. Chla concentration of a site with algal bloom in Wuli Lake decreased by 76% after 1 day treatment in the field experiment. Acute fish toxicity test （5 days） of the nanomaterial algaeeidal sheet showed no significant toxicity.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2006年第4期715-719,共5页
Environmental Science
基金
国家高技术研究发展计划(863)项目(2002AA601013)
湖北省科技攻关计划项目(2003AA306B05)
关键词
水华
杀藻
纳米技术
algae blooms
algaeeidal
nanoteehnology
