Adsorption of heavy metals and organic contaminants from aqueous stream with chemically enhanced kapok fibers

被引：7
作者：
Wang, Runkai [1 ]
Shin, Chul-Ho [2 ]
Kim, Daeik [3 ]
Ryu, Moonhee [4 ]
Park, Joon-Seok [5 ]
机构：
[1] Shanghai Univ Engn Sci, Coll Chem & Chem Engn, Dept Environm Sci & Engn, 333 Longtong Rd, Shanghai, Peoples R China
[2] Seohae Environm Sci Inst, Jeonju 54817, South Korea
[3] Univ So Calif, Viterbi Sch Engn, Sony Astani Dept Civil & Environm Engn, 3620 S Vermont Ave, Los Angeles, CA 90089 USA
[4] Chonbuk Natl Univ, Coll Environm & Bioresource Sci, Div Biotechnol, Iksan 54596, South Korea
[5] Kangwon Natl Univ, Dept Environm Engn, Samcheok 25913, Gangwon Do, South Korea
来源：
ENVIRONMENTAL EARTH SCIENCES | 2016年 / 75卷 / 04期
关键词：
Kapok fiber; Adsorption; Heavy metals; Methylene blue; Trichloroethylene; PENTANDRA L. GAERTN; REMOVAL; JUTE; LEAD;
D O I：
10.1007/s12665-016-5254-9
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The chemically enhanced kapok fiber was fabricated and tested for an industrial and environmental application, and optimized conditions for fiber modification and adsorption kinetic reactions were developed and evaluated. A significant improvement of the adsorption efficiency for the uptakes of Cd2+, Cu2+, Ni2+, Pb2+, and Zn2+ ions was observed with the chemically enhanced kapok fibers. The experimented metals were removed in the range of 95-99 % with a removal order such as Pb2+ > Cu (2+) Ni2+ approximate to Cd2+ Zn2+. The adsorption kinetic models for such metals were also studied, indicating that chemisorption and reconstructed three-dimensional (3D) polymer structure were the determining rate step because of the higher correlation rate constant of the pseudo-second-order reaction. Along with metal adsorption study, the adsorption of methylene blue (MB) and trichloroethylene (TCE) with the chemically enhanced fiber was also estimated.
引用
收藏
页码：1 / 6
页数：6
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