江蓠对水体重金属铅镍的蓄积及生物修复研究  

The Cumulation and Biologic Restoretion to Pb,Ni by Gracilaria in the Water

作　　者：张皓[1] 

机构地区：[1]常州市环境监测中心站,江苏常州213001

出　　处：《环境监控与预警》2011年第1期48-53,共6页Environmental Monitoring and Forewarning

摘　　要：以活体细基江篱繁枝变型(Gracilariatunuistipitata var)作为研究材料,以Pb、Ni重金属离子为污染因子,通过室内静态模拟实验,综合利用等离子发射光谱仪,超速离心机,差速离心机等实验手段研究在单一离子污染胁迫下,江蓠对Pb、Ni重金属离子的短期去除效果,各重金属离子在其体内蓄积效应,江蓠质外体、共质体以及江蓠各功能细胞器中重金属离子的分布情况。初步评价江蓠对重金属的净化效果,以及对单一重金属离子Pb、Ni的体内蓄积效应,为进一步探讨江蓠吸附重金属的生理生化机制及其在重金属污染环境修复中的实际应用奠定基础。This research uses Gracilariatunuistipitata Var as a research material and uses Pb,Ni as pollutants,through a series of experiments such as the indoor static simulation experiment,comprehensive utilization of plasma-atomic emission spectrometer,high speed centrifuge,and differential speed centrifuge experimental methods.Comparative study on the removal of short-term effects of Gracilaria to Pb,Ni,the accumulation effect of heavy metal ions in the body of Gracilaria and the distribution of heavy metal ions in Gracilaria＇s apoplast and symplast from different angles in a single heavy metal ion＇s pollution stress of Pb,Ni has been studied.Evaluation of the purifying effect of Gracilaria to heavy metal as well as the accumulation effect in vivo of a single heavy metal ion about Pb,Ni is performed so as to lay the foundation for the further exploration of the physiological and biochemical adsorption mechanisms of Gracilaria to heavy metals and its practical application in heavy metal pollution in environmental recovery.

关 键 词：细基江篱繁枝变型 PB Ni 生物修复 

分 类 号：X506[环境科学与工程—环境工程]