Anionic Surfactants Removal by Natural Coagulant/Flocculant Products

被引：51
作者：
Beltran-Heredia, J. [1 ]
Sanchez-Martin, J. [1 ]
Solera-Hernandez, C. [1 ]
机构：
[1] Univ Extremadura, Dept Chem Engn & Phys Chem, E-06071 Badajoz, Spain
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2009年 / 48卷 / 10期
关键词：
MORINGA-OLEIFERA SEEDS; WASTE-WATER TREATMENT; NONIONIC SURFACTANTS; ACTIVATED CARBON; ADSORPTION; COAGULATION; INTERFACE; BIODEGRADABILITY; PERFORMANCE; SULFONATE;
D O I：
10.1021/ie801913y
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A new tannin-based coagulant and flocculant agent has been tested on the removal of sodium dodecyl benzene sulfonate (SDBS), a dangerous and pollutant anionic surfactant. It is called Tanfloc and consists of a chemically modified tannin extract from Acacia mearnsii de Wild. Tanfloc has been revealed as an efficient product in anionic surfactant removal. Around 70% of SDBS removal has been achieved with Tanfloc doses of 150 mg.L-1. pH has a negative influence on surfactant removal, while the higher the initial surfactant concentration is the higher q capacity is obtained. Theoretical data adjustment has been carried out according to three different models: Frumkin-Fowler-Guggenheim (FFG), Gu and Zhu (G-Z), and Freundlich (F). Adjustment parameters have been obtained with r(2) levels above 0.90 in all cases.
引用
收藏
页码：5085 / 5092
页数：8
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