Removal of heavy metal ions from water using ion flotation

被引：131
|
作者：
Taseidifar, Mojtaba [1 ]
Makavipour, Fatemeh [1 ]
Pashley, Richard M. [1 ]
Rahman, A. F. M. Mokhlesur [1 ]
机构：
[1] UNSW Canberra, Sch Phys Environm & Math Sci, Northcott Dr, Canberra, ACT 2610, Australia
来源：
ENVIRONMENTAL TECHNOLOGY & INNOVATION | 2017年 / 8卷
关键词：
ICP-MS; Surfactant; Ion flotation; Heavy metals; Cysteine; Octanoyl chloride; AQUEOUS-SOLUTION; NATURAL-WATERS; WASTE-WATER; L-CYSTEINE; ADSORPTION; CHINA; ACIDS; CU2+; CD2+;
D O I：
10.1016/j.eti.2017.07.002
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The effects of different single-chain surfactants obtained by reacting cysteine with octanoyl (C8), decanoyl (C10) and dodecanoyl (C12) chloride were investigated for their use in ion flotation removal of low levels of arsenic, mercury, lead, cadmium and chromium ions from aqueous solution. Re-crystallized octanoyl-cysteine (octanoyl-cys) surfactant showed the highest removal efficiency at 99.9%, for Hg ions, using pure nitrogen gas. Successful removal results of most other ions was found to be in the range 99.1-99.7%, using either air or nitrogen gas. Characterization of the octanoyl-cys surfactant was also carried out using elemental analysis, H-1 NMR, FT-IR, melting point (MP) and critical micelle concentration (CMC) determination. Crown Copyright (C) 2017 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：182 / 190
页数：9
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