Potential of Ulva prolifera in phytoremediation of seawater polluted by cesium and cobalt: an experimental study on the biosorption and kinetics

作     者：Xuemei WANG Tifeng SHAN Shaojun PANG Xuemei WANG;Tifeng SHAN;Shaojun PANG

作者机构：CAS and Shandong Province Key Laboratory of Experimental Marine BiologyCenter for Ocean Mega-ScienceInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Biology and BiotechnologyPilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China 

出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报（英文）)

年 卷 期：2022年第40卷第4期

页      面：1592-1599页

核心收录：

学科分类：0710[理学-生物学] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 0707[理学-海洋科学] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学] 

基　　金：Supported by the State’s Key Project of Research and Development Plan,China(No.2016YFC1402507) the China Agriculture Research System of Ministry of Finance,and the Ministry of Agriculture(No.CARS-50) 

主　　题：radionuclide pollution phytoremediation green tide Ulva prolifera biosorption kinetics 

摘      要：Radionuclides accidentally released from nuclear power plants,such as ^(137)Cs and ^(60)Co,can lead to severe contamination of marine *** macroalgae are effi cient 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 U lva prolifera that was cultured in seawater medium containing Cs and Co in diff erent concentrations(0(the control),10,20,50,and 100 mg/L).In the experiment,5 kg(fresh weight)of *** was cultured in natural seawater in 90-L *** showed that after the experiment,the average bioconcentration factors(BCFs)of the control group were 247.2 and 1126.4 for Cs and Co,*** absolute absorption quantity of *** increased and the BCFs decreased with the increase in Cs and Co *** biosorption of the two metals on the fi rst day well fi t the pseudo-second-order equation(R^(2)0.95),indicating that adsorption is the rate-limiting step in the total biosorption *** of both metal ions declined signifi cantly in the fi rst hour and decreased by 25.2%and 15.5%in 48 h,***,live *** is effi cient at scavenging Cs and Co in seawater,providing potential applications for the phytoremediation of radionuclides contaminated seawaters.