典型文献
Potential of Ulva prolifer a in phytoremediation of seawater polluted by cesium and cobalt:an experimental study on the biosorption and kinetics
文献摘要：
Radionuclides accidentally released from nuclear power plants,such as 137Cs and 60Co,can lead to severe contamination of marine ecosystems.Living macroalgae are efficient in absorbing metal elements from seawater.A 10-day simulation was conducted to assess the potential of scavenging cesium(Cs)and cobalt(Co)with live Ulva prolifera that was cultured in seawater medium containing Cs and Co in different concentrations(0(the control),10,20,50,and 100 mg/L).In the experiment,5 kg(fresh weight)of U.prolifera was cultured in natural seawater in 90-L tanks.Results showed that after the experiment,the average bioconcentration factors(BCFs)of the control group were 247.2 and 1 126.4 for Cs and Co,respectively.The absolute absorption quantity of U.prolifera increased and the BCFs decreased with the increase in Cs and Co concentrations.The biosorption of the two metals on the first day well fit the pseudo-second-order equation(R2＞0.95),indicating that adsorption is the rate-limiting step in the total biosorption process.Concentrations of both metal ions declined significantly in the first hour and decreased by 25.2％and 15.5％in 48 h,respectively.Therefore,live U.prolifera is efficient at scavenging Cs and Co in seawater,providing potential applications for the phytoremediation of radionuclides contaminated seawaters.
文献关键词：
中图分类号：
作者姓名：
Xuemei WANG;Tifeng SHAN;Shaojun PANG
作者机构：
CAS and Shandong Province Key Laboratory of Experirnental Marine Biology,Center for Ocean Mega-Science,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China;Laboratory for Marine Biology and Biotechnology,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China
文献出处：
引用格式：
[1]Xuemei WANG;Tifeng SHAN;Shaojun PANG-.Potential of Ulva prolifer a in phytoremediation of seawater polluted by cesium and cobalt:an experimental study on the biosorption and kinetics)[J].海洋湖沼学报（英文版）,2022(04):1592-1599
A类：
prolifer,Radionuclides,BCFs
B类：
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AB值：
0.523101
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