Adsorption of heavy metals by a sorbent based on pine bark

被引：14

作者：

Khokhotva, A. P. ^{[1
]}

机构：

[1] Natl Tech Univ Ukraine, Kiev Polytech Inst, Kiev, Ukraine

来源：

JOURNAL OF WATER CHEMISTRY AND TECHNOLOGY | 2010年 / 32卷 / 06期

关键词：

Pine bark; modification; urea; heavy metals; adsorption; desorption; isotherms; HYDROLYZED LIGNIN; IONS;

D O I：

10.3103/S1063455X10060044

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Sorption properties of the pine bark treated with a 5% urea solution have been studied with respect to heavy metals Cu(II), Ni(II), Zn(II), and Pb(II). The bark subjected to treatment has higher sorption properties and retains several times as many metals as the untreated bark. Parameters of the Langmuir and Freundlich sorption isotherms were obtained. The possible mechanisms of the bark interaction with urea and reasons for an enhanced metal adsorption on the bark treated with urea solution have been also discussed.

引用

页码：336 / 340

页数：5

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