| 纳米杀藻布杀藻效果研究 |
| 摘要点击 1485 全文点击 886 投稿时间：2005-03-23 修订日期：2005-07-06 |
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| 中文关键词 水华 杀藻 纳米技术 |
| 英文关键词 algae blooms algaecidal nanotechnology |
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| 中文摘要 |
| 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(Anabaena 7120)、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. |
| 英文摘要 |
| A nanomaterial algaecidal sheet was prepared for algaecidal treatment.The results of algaecidal activity of the nanomaterial algaecidal sheet 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 0.08cm2·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 algaecidal sheet showed no significant toxicity. |
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