REMOVAL OF FE(II) BY WASTE FE(III)/CR(III) HYDROXIDE FROM AQUEOUS-SOLUTION AND ELECTROPLATING INDUSTRY WASTE-WATER

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作者
NAMASIVAYAM, C
RANGANATHAN, K
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中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The effects of Fe(II) concentration, contact time, adsorbent dosage, particle size, temperature and pH on adsorption of Fe(II) by waste Fe(III)/Cr(III) hydroxide have been studied. The per cent Fe(II) adsorbed increased with decrease in initial concentration of Fe(II), increase in adsorbent dosage and temperature. The equilibrium data fit well with the Langmuir and Freundlich isotherms. The adsorption rate constants and thermodynamical parameters are presented. Removal of Fe(II) by the adsorbent is also testified using electroplating industry wastewater.
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页码:351 / 355
页数:5
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