铜锈环棱螺对原水中藻类及营养盐的影响

Influence of Raising Bellamya Aeruginosa on Algae and Nutrients in Raw Water

通过试验探讨在原水中投放铜锈环棱螺对水体中藻颗粒、叶绿素α含量、pH以及营养盐等指标的影响。结果表明:饲养环棱螺后的水体中,叶绿素α及藻颗粒数量均有大幅度下降,其中叶绿素α含量下降85%～89%,藻颗粒数下降70%～79%;水体中的氨氮、硝酸盐、亚硝酸盐等营养盐指标均有一定程度的上升。

Influence of algae particles, chlorophyll-α content, pH and nutrients by raising bellamya aeruginosa in raw water was researched with experiments. Result shows, chlorophyll-α content and algae particles reduce observably. Concentration of chlorophyll-α and algae particles decrease 85 %-89 % and 70 %-79 %, respectively. Concentration of nutrients, such as ammonia nitrogen, nitrate and nitrite are increased.