太湖蓝藻成因分析与清淤方法探讨  

Analysis of formation of blue-green algae and dredging methods in Taihu Lake

作　　者：叶上扬[1] 喻国良[1] 庞红犁[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《水资源保护》2012年第2期30-33,41,共5页Water Resources Protection

基　　金：国家"十一五"水体污染控制与治理科技重大专项(2008ZX07106-2-1)

摘　　要：分析氮磷比和温度对太湖蓝藻生长与消亡的影响,结果表明,较高质量浓度的TN、TP是太湖富营养化的根本原因,适宜的氯磷比是太湖蓝藻大规模暴发的内因,25℃左右的水温是太湖蓝藻暴发的突变点。针对太湖传统清淤工作中存在的问题,提出了利用高频微幅振动清淤的湖泊淤泥疏浚新技术和清淤与淤灌相结合的综合清淤方案。The impacts of the nitrogen-to-phosphorus ratio and temperature on the growth and death of blue-green algae in Taihu Lake were analyzed.The results show that the high concentrations of TN and TP are the leading causes of eutrophication,a proper chlorine-to-phosphorus ratio is the internal cause of largescale algal bloom,and a temperature of 25℃ is the critical point of algal bloom in Taihu Lake.To solve the problems of traditional dredging methods,a new silt dredging technology using high-frequency and micro-amplitude vibration and an integrated dredging scheme with a combination of the technologies of dredging and warping irrigation were proposed.

关 键 词：太湖治理 蓝藻成因 高频振动 清淤 

分 类 号：X524[环境科学与工程—环境工程]