期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：310
期号：4
页码：1-7
DOI：10.1088/1755-1315/310/4/042015
出版社：IOP Publishing
摘要：Lead(II) contamination is a serious environmental problem. The purpose of this research is to discuss the feasibility of utilizing dead water hyacinth granule to eliminate lead(II) cations from aqueous solution through batch tests. Effects of contact time, medium acidity-alkalinity, and solution lead concentration on this biosorption process were detailedly studied. The experimental result suggested that the lead(II) biosorption depended highly on the medium pH. A pH of 5.0 was most helpful to lead(II) removal. The biosorption data conformed to pseudo-second-order kinetics and the biosorption equilibrium time was equal to 45 minutes. The biosorption isotherm data could be characterized using Langmuir model accompanied with the maximum biosorption capacity of 75.44 mg/g. Our findings revealed that water hyacinth could be an efficient adsorbent for lead(II) elimination.
