淀山湖蓝藻碎屑的好氧降解和营养盐释放规律研究

中国环境科学2013,33(11)：2047~2052ChinaEnvironmentalScience淀山湖蓝藻碎屑的好氧降解和营养盐释放规律研究孙远军*(上海市环境科学研究院,上海201200)摘要：收集淀山湖的水华蓝藻,经超声波处理后,研究死亡蓝藻的好氧降解及营养盐释放规律.结果表明,蓝藻细胞有机碳的矿化速率为9.415mg/(Ld),有机氮的氨化速率为0.441mg/(Ld),有机磷的降解速率为0.044mg/(Ld),好氧降解将会造成溶解态营养盐的大量释放,降解后硝态氮和正磷酸盐分别比初始值高4.22倍和4.20倍.关键词：淀山湖；蓝藻；好氧降解；营养盐释放中图分类号：X52文献标识码：A文章编号：1000-6923(2013)11-2047-06StudyontheaerobicdecompositionandnutrientreleaseofcyanobacteriadetritusinDianshanLake.SUNYuan-jun*(ShanghaiEnvironmentScienceAcademy,Shanghai201200,China).ChinaEnvironmentalScience,2013,33(11)：2047~2052Abstract：TheaerobicdegradationandnutrientsreleaseruleofcyanobacteriadebriscollectingfromDianshanLakewasstudied，afterultrasonictreatment.Theresultsshowedthatthecyanobacterialcellmineralizationrateoforganiccarbonwasupto9.415mg/(Ld),theammonificationrateoforganicnitrogenupto0.441mg/(Ld),thedegradationrateoforganicphosphorusupto0.044mg/(Ld).Aerobicdegradationwillresultinamassivereleaseofdissolvednutrient,thenitrateandorthophosphateconcentrationwas4.22and4.20