摘要
为防治密云水库富营养化问题，应用部分物理和生物技术进行现场试验。吸附性材料净水试验后，试验区内水中氮的浓度和磷的浓度比对照区都有所下降，这将对藻类生长所需的营养物质量起到一定的控制作用。水葫芦净化水体试验说明，试验区内水体的总磷和总氮浓度皆低于对照水体的，这将控制藻类生长所需的营养物质量，即控制藻类的生长速度。机械除藻试验后，水中的叶绿素含量比除藻前下降60％～100％。表底层水体交换试验后，试验区内表、中层水体的温度有所下降，温度降低将抑制表、中层水体中藻细胞的繁殖速率，对水华的发生将起到一定的抑制作用。
To prevent and repair water eutrophication in Miyun Reservoir, a site experiment was implemented by using physical and biological techniques. The concentrations of the total phosphorus and nitrogen in the experimental site are lower than those in the controlled-experimental site after the sorption experiment and the hyacinth feeding experiment. After the experiment of mechanical removal of algae, the content of the chlorophyll in water is 0～40% of the previous value. The temperature of the surface and middle-level water in reservoir decreased when the bottom water of the reservoir was pumped to the surface. This would control the increase of algal cells in water.
出处
《地学前缘》
EI
CAS
CSCD
北大核心
2005年第U04期77-82,共6页
Earth Science Frontiers
关键词
吸附性材料
水葫芦
养分富集作用
水藻
表底层水体
密云水库
sorption
hyacinth feeding
eutrophication
algae
surface and bottom water
Miyun Reser-(voir )
