Removal of heavy metals through adsorption using sand

The removal of four heavy metals i.e. Pb, Cr, Cu, and Zn from their aqueous solutions, using ordinary sand as an adsorbent, was studied at 20oC. The amount of metal adsorbed to form monolayer on sand(am), obtained from Langmuir isotherm, exhibited the preference of metals for sand in the order Pb>Cr>Cu>Zn. The heavy metal-sand adsorption phenomena can be illustrated on the basis of the interaction between surface functional group of silicates (sand) and the metal ions. It is deduced that sand can be used as a low cost adsorbent for the removal of heavy metal from wastewater (containing low conc. of metals), especially in the developing countries.

作 者： M.Ali Awan Ishtiaq A.Qazi Imran Khalid   作者單位： M.Ali Awan,Imran Khalid(Institute of Environmental Science and Engineering (IESE), National University of Sciences & Technology (NUST), Rawalpindi, Pakistan)

Ishtiaq A.Qazi(Pakistan Council of Renewable Energy Technologies, Islamabad, Pakistan) 

刊 名： 環(huán)境科學(xué)學(xué)報(英文版)  ISTIC SCI 英文刊名： JOURNAL OF ENVIRONMENTAL SCIENCES  年，卷(期)： 2003 15(3)  分類號： X131 X506  關(guān)鍵詞： sand   heavy metals   adsorption  

【Removal of heavy metals through adso】相關(guān)文章：

Application of ultrasonic to speciation analysis of heavy metals in soil04-25

Effect of substrate concentration on the bioleaching of heavy metals from sewage sludge04-25

Accumulation of heavy metals in four grasses grown on lead and zinc mine tailings04-25

Status of persistent organic pollutants and heavy metals in surface water of Arctic region04-27

Experimental approaches and analytical technique for determining heavy metals in fallen dust at ferrosilicon production04-25

Heavy metals in oysters, mussels and clams collected from coastal sites along the Pearl River Delta, South China04-27

go through (經(jīng)歷)05-04

通過海關(guān) Going Through Customs05-04

Contaminations removal from static lake water by compound04-26

Removal of Low Concentration Toluene Vapor in a Biotrickling Filter04-26