Statistical design of experiments as a tool for optimizing the batch conditions of Cu(II) biosorption using pecan nutshells as biosorbent.

被引：12

作者：

Brasil, Jorge L. ^{[1
]}

Vaghetti, Julio C. P. ^{[1
]}

Royer, Betina ^{[1
]}

dos Santos, Araci A., Jr. ^{[1
]}

Simon, Nathalia M. ^{[1
]}

Pavan, Flavio A. ^{[1
]}

Dias, Silvio L. P. ^{[1
]}

Lima, Eder C. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil

来源：

QUIMICA NOVA | 2007年 / 30卷 / 03期

关键词：

biosorption; statistical design of experiments; Carya illinoensis;

D O I：

10.1590/S0100-40422007000300008

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In order to reduce the total number of experiments for achieving the highest amount of adsorbed Ca2+ (qmax) using pecan nutshells (Carya illinoensis) as biosorbent, a full 2(4) factorial design with two central points was carried out (mass of biosorbent- m, pH, initial metallic ion concentration- C-0, time of contact- t). In order to continue the optimization of the system, a central composite surface analysis design with two factors and five central points was carried out. The maximum amount of Cu2+ taken up by the pecan nutshells was 20 mg g(-1). These results were confirmed by determining a Cu2+ isotherm using the best conditions attained by the statistical design of experiments.

引用

页码：548 / 553

页数：6

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