An overview of the recovery of acid from spent acidic solutions from steel and electroplating industries

被引:298
作者
Agrawal, Archana [1 ]
Sahu, K. K. [1 ]
机构
[1] Natl Met Lab, Met Extract & Forming Div, Jamshedpur 831007, Bihar, India
关键词
Acid extraction; Solvent extraction; Precipitation; Bleed stream; Waste pickle liquor; MAGNESIUM-ALUMINUM OXIDE; ANION-EXCHANGE MEMBRANES; STRONG MINERAL ACIDS; TRI-N-OCTYLAMINE; SULFURIC-ACID; HYDROCHLORIC-ACID; DIFFUSION DIALYSIS; SOLVENT-EXTRACTION; BIPOLAR MEMBRANES; ORGANIC SOLUTIONS;
D O I
10.1016/j.jhazmat.2009.06.099
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Every metal and metallurgical industry is associated with the generation of waste, which may be a solid, liquid or gaseous in nature. Their impacts on the ecological bodies are noticeable due to their complex and hazardous nature affecting the living and non-living environment which is an alarming issue to the environmentalist. The increasingly stringent regulations regarding the discharge of acid and metal into the environment, and the increasing stress upon the recycling/reuse of these effluents after proper treatment have focused the interest of the research community on the development of new approaches for the recovery of acid and metals from industrial wastes. This paper is a critical review on the acidic waste streams generated from steel and electroplating industries particularly from waste pickle liquor and spent bleed streams. Various aspects on the generation of these streams and the methods used for their treatment either for the recovery of acid for reuse or disposal are being dealt with. Major stress is laid upon the hydrometallurgical methods such as solvent extraction. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:61 / 75
页数:15
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