PROCESS-DEVELOPMENT FOR REMOVAL AND RECOVERY OF CADMIUM FROM WASTE-WATER BY A LOW-COST ADSORBENT - ADSORPTION RATES AND EQUILIBRIUM STUDIES

被引：250

作者：

PERIASAMY, K ^{[1
]}

NAMASIVAYAM, C ^{[1
]}

机构：

[1] BHARATHIAR UNIV,DEPT ENVIRONM SCI,DIV ENVIRONM CHEM,COIMBATORE 641046,TAMIL NADU,INDIA

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1994年 / 33卷 / 02期

关键词：

D O I：

10.1021/ie00026a022

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Activated carbon prepared from peanut hulls (PHC), an agricultural waste by-product, has been used for the adsorption of Cd(II) from synthetic wastewater. The adsorption data fit better with the Freundlich adsorption isotherm. The applicability of the Lagergren kinetic model has also been investigated. An almost quantitative removal of 20 mg/L Cd(II) by 0.7 g of PHC/L of aqueous solution was observed in the pH range 3.5-9.5. A comparative study with a commercial granular activated carbon (CAC) showed that the adsorption capacity (K(f)) of PHC was 31 times larger than that of CAC.

引用

页码：317 / 320

页数：4

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