摘要
研究了水体中生石灰和漂白粉对淡水小球藻的生长的影响。淡水小球藻在含有不同浓度的生石灰或漂白粉的培养液中培养,培养24h后开始使用分光光度计检测培养液在650nm的吸光度值,每隔24h检测1次,连续检测3次。研究结果表明,培养液中生石灰和漂白粉的存在均对小球藻的生长起到抑制作用,并且2者的浓度越高,抑制作用越明显。在24h、48h和72h,生石灰抑制小球藻生长的半效应浓度(EC50)分别是28.57、10.77和9.79mg/L,漂白粉抑制小球藻生长的半效应浓度(EC50)分别是2.17、1.10和0.91mg/L。
This article intends to study the effects of quicklime and bleaching powder in water bodies on the growth of Chlorella. Inoculated Chlorella vulgaris was cultured in the solutions which had different concentration gradient of quicklime or bleaching powder. The OD650nm of the culture solutions were determined per 24 hours and continued 3 times. （The results indicated that both quicklime and bleaching powder in the culture solutions had inhibition effects on the growth of Chlorella vulgaris, and the inhibition effects were greater with the increase of concentration. 24 h -EC50, 48h - EC50 and 72h - EC50 of quicklime were 28.57,10.77and 9.79 mg/L respectively, while of bleaching powder were 2.17,1.10 and 0.91 mg/L respectively.
出处
《水生态学杂志》
北大核心
2009年第2期145-147,共3页
Journal of Hydroecology
关键词
淡水小球藻
生石灰
漂白粉
生长抑制
半效应浓度(EC50)
Chlorella vulgaris
quicklime
bleaching powder
growth inhibition
median effect concentration （ EC50 ）
