SURFACE ENTRAPMENT OF TOXIC METALS FROM ELECTROPLATING WASTE AND THEIR POSSIBLE RECOVERY

被引：19

作者：

AJMAL, M

SULAIMAN, AM

KHAN, AH

机构：

[1] Environmental Research Laboratory, Department of Applied Chemistry, Faculty of Engg. and Tech., Aligarh Muslim University, Aligarh

来源：

WATER AIR AND SOIL POLLUTION | 1993年 / 68卷 / 3-4期

关键词：

D O I：

10.1007/BF00478471

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 ions such as Cr, Ni, Cu, Cd and Zn have been removed from the electroplating waste using Fe(III) hydroxide as adsorbent. The maximum removal of these metal ions (> 90%) occurred at pH 8 to 9. Removal of SO42- (98%) occurred at pH 4. Anions were found to play a negative role in the adsorption phenomenon. Metal ion sorption has been found to decrease with increasing anionic concentrations. The methodology proposed might provide an inexpensive and economical procedure for removal and recovery of toxic metals from electroplating wastes.

引用

页码：485 / 492

页数：8

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