Removal of Toxic Heavy Metals from Contaminated Aqueous Solutions Using Seaweeds: A Review

被引:32
作者
Foday, Edward Hingha, Jr. [1 ,2 ,3 ]
Bo, Bai [1 ,2 ,4 ,5 ]
Xu, Xiaohui [1 ,2 ]
机构
[1] Changan Univ, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Xian 710054, Peoples R China
[2] Changan Univ, Sch Water & Environm, Dept Environm Engn, Xian 710054, Peoples R China
[3] Eastern Tech Univ Sierra Leone, Fac Educ, Combema Rd, Kenema City 00232, Sierra Leone
[4] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Tibetan Med Res, Xining 810008, Peoples R China
[5] Qinghai Prov Key Lab Tibetan Med Res, Xining 810001, Peoples R China
关键词
heavy metals; seaweed; biosorption; aqueous solution; remediation; ALGAL BIOMASS; WASTE-WATER; COMPETITIVE ADSORPTION; HEXAVALENT CHROMIUM; CADMIUM BIOSORPTION; COPPER; BROWN; IONS; LEAD; NICKEL;
D O I
10.3390/su132112311
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Heavy metal contamination affects lives with concomitant environmental pollution, and seaweed has emerged as a remedy with the ability to save the ecosystem, due to its eco-friendliness, affordability, availability, and effective metal ion removal rate. Heavy metals are intrinsic toxicants that are known to induce damage to multiple organs, especially when subjected to excess exposure. With respect to these growing concerns, this review presents the preferred sorption material among the many natural sorption materials. The use of seaweeds to treat contaminated solutions has demonstrated outstanding results when compared to other materials. The sorption of metal ions using dead seaweed biomass offers a comparative advantage over other natural sorption materials. This article summarizes the impact of heavy metals on the environment, and why dead seaweed biomass is regarded as the leading remediation material among the available materials. This article also showcases the biosorption mechanism of dead seaweed biomass and its effectiveness as a useful, cheap, and affordable bioremediation material.
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页数:17
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