USE OF WOLLASTONITE IN THE REMOVAL OF NI(II) FROM AQUEOUS-SOLUTIONS

被引：85

作者：

SHARMA, YC ^{[1
]}

GUPTA, GS ^{[1
]}

PRASAD, G ^{[1
]}

RUPAINWAR, DC ^{[1
]}

机构：

[1] BANARAS HINDU UNIV,INST TECHNOL,DEPT APPL CHEM,WATER POLLUT RES LABS,VARANASI 221005,UTTAR PRADESH,INDIA

来源：

WATER AIR AND SOIL POLLUTION | 1990年 / 49卷 / 1-2期

关键词：

D O I：

10.1007/BF00279511

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The ability of wollastonite to adsorb Ni (II) from water has been carried out. A removal of 92% of Ni (II) with 20 g L-1 of adsorbent was observed at 50 mg L-1 adsorbate concentration, 6.5 pH and 30 °C. The process follows a first order rate kinetics with diffusion controlled nature and the data fits the Langmuir adsorption isotherm. Removal of Ni increases from 10 to 92% with the rise of pH from 3.0 to 8.0 and thereafter it remains almost unchanged. This change has been explained on the basis of aqueous-complex formation and the subsequent acid base dissociation at the solid-solution interface. © 1990 Kluwer Academic Publishers.

引用

页码：69 / 79

页数：11

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