化学物添加控制湖泊内源磷负荷的有效性研究  

Effectiveness of controlling internal phosphorus loading by using chemical substance

作　　者：包先明[1] 陈开宁[2] 范成新[2] 

机构地区：[1]淮北煤炭师范学院生物系,安徽淮北235000 [2]中国科学院南京地理与湖泊研究所,南京210008

出　　处：《生态环境》2007年第1期8-11,共4页Ecology and Environmnet

基　　金：国家高技术研究发展计划(863项目)(2002AA601013);中国科学院知识创新重大项目(KZCX1-SW-12-Ⅱ)

摘　　要：利用太湖五里湖湖水和未受破坏原柱状沉积物样组成的系统进行投加生石灰、铁盐和铝盐的湖水脱磷效果的实验室研究。分别一次性向各柱状样上覆水体中投加6种不同质量浓度的铝盐、钙盐和铁盐溶液,经过一段时间的观察和测定。结果表明,3种化学物的添加均能使实验上覆水体中总磷质量浓度大幅度降低,并且随着投加的生石灰、铁盐和铝盐的量的增加,上覆水体中总磷的质量浓度下降幅度越大,水体中总磷的去除率越高,同时这3种化学物的添加对湖泊沉积物内源磷的释放有一定的抑制作用。The possibility of reducing phosphorus loading by using Calcium lime; Aluminium salt; Fen-is salt additions to lake water-sediments system is proposed in the paper, The water-sediments all coming from WuLi lake of Jiangsu Province. Separated appended six different concentrations of Calcium lime, Aluminium salt and Fen＇is salt to different lake water-sediments system. Through a period of time observed and measured, The results showed that Calcium lime, Aluminium salt and Fenis salt all can obviously reducing total phosphorus concentration in urpper water. The total phosphorus removing rates enhancing with the three supplement matters concentrations increasing. Simultaneously the three supplement matters all can depress internal phosphorus release.

关 键 词：石灰 铝盐 铁盐 内源磷负荷 五里湖 

分 类 号：X524[环境科学与工程—环境工程]