BATCH ADSORPTION OF Zn(II) IONS FROM AQUEOUS SOLUTION ONTO SAWDUST

被引：0

作者：

Nacu, Gabriela ^{[1
]}

Negrila, Lacramioara ^{[1
]}

Bulgariu, Laura ^{[1
]}

机构：

[1] Gheorghe Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Dept Environm Engn & Management, 73 Prof Dimitrie Mangeron St, Iasi 700050, Romania

来源：

REVUE ROUMAINE DE CHIMIE | 2017年 / 62卷 / 4-5期

关键词：

adsorption; sawdust; Zn(II) ions; aqueous solution; HEAVY-METAL IONS; PLEUROTUS-PLATYPUS; BIOSORPTION; EQUILIBRIUM; ADSORBENTS; REMOVAL; MODELS; ZINC; BIOSORBENT; KINETICS;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The removal of Zn(II) ion from aqueous solution by adsorption onto sawdust was examined in batch experiments. The sawdust used as adsorbent in this study is a waste obtained in large quantities in our country from wood processing industry. The experiments were performed in order to examined the influence of most important parameters (initial solution pH, adsorbent dose, initial Zn(II) concentration, contact time and temperature), and the obtained results were used to establish the optimum adsorption conditions. These were found to be an initial solution pH of 1.09 and 6.23, 8.0 g sawdust/L, 100 min of contact time and ambient temperature. The standard thermodynamic parameters (Delta G(0), Delta H-0 and Delta S-0) were also evaluated and the obtained results have indicated that the adsorption process is thermodynamically favourable and endothermic.

引用

页码：439 / 447

页数：9

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