Potential of Ulva prolifera in phytoremediation of seawater polluted by cesium and cobalt: an experimental study on the biosorption and kinetics
文献类型：CNKI期刊论文
| 作者 | Xuemei WANG; Tifeng SHAN; Shaojun PANG |
| 发表日期 | 2022-07-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | radionuclide pollution phytoremediation green tide Ulva prolifera biosorption kinetics |
| 英文摘要 | Radionuclides accidentally released from nuclear power plants,such as ~(137)Cs and ~(60)Co,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 pseudosecond-order equation(R~2>0.95),indicating that adsorption is the rate-limiting step in the total bio sorption 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. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the State’s Key Project of Research and Development Plan,China (No. 2016YFC1402507) ; the China Agriculture Research System of Ministry of Finance,the Ministry of Agriculture (No. CARS-50) |
| 卷 | v.40期:04页:306-313 |
| 语种 | 英文; |
| 分类号 | X173;X55 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187376]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CASandShandongProvinceKeyLaboratoryofExperimentalMarineBiology,CenterforOceanMega-Science,InstituteofOceanology,ChineseAcademyofSciences 2.LaboratoryforMarineBiologyandBiotechnology,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) |
| 推荐引用方式 GB/T 7714 | Xuemei WANG,Tifeng SHAN,Shaojun PANG. Potential of Ulva prolifera in phytoremediation of seawater polluted by cesium and cobalt: an experimental study on the biosorption and kinetics. 2022. |
入库方式： OAI收割
来源：海洋研究所
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