Mercury Removal by Adsorption on Pectin Extracted from Sugar Beet Pulp: Optimization by Response Surface Methodology

被引：20

作者：

Ma, Xinfang ^{[1
]}

Li, Deqiang ^{[2
]}

Wu, Zhansheng ^{[1
]}

Zhang, Haiyan ^{[1
]}

Chen, Xiaoxuan ^{[1
]}

Liu, Zhiyong ^{[1
]}

机构：

[1] Shihezi Univ, Coll Chem & Chem Engn, Shihezi 832003, Xinjiang, Peoples R China

[2] Xinjiang Agr Univ, Coll Chem Engn, Urumqi, Xinjiang, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2016年 / 39卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Hg(II) removal; Pectin extraction; Response surface methodology; Sugar beet pulp; ACTIVATED CARBON; EQUILIBRIUM; IONS; CAPACITY;

D O I：

10.1002/ceat.201400059

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Considering the rich sugar beet resource in Xinjiang, China, the possibilities for Hg(II) removal by pectin extracted from sugar beet pulp and optimization of the extraction process using response surface methodology (RSM) were studied. The experiments were proposed by Box-Behnken design (BBD) and a second-order regression model was developed for regression analysis and analysis of variance. Optimized conditions in terms of temperature, concentration, and solid-liquid ratio were determined. The effects of different parameters like pH, time, temperature, and initial Hg(II) concentration on adsorption capacity were investigated. The isotherm adsorption experiments were fitted with the Langmuir model which indicated monolayer adsorption.

引用

页码：371 / 377

页数：7

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