Removal of two organophosphate pesticides by a bacterial consortium immobilized in alginate or tezontle

被引：41

作者：

Yanez-Ocampo, Gustavo ^{[1
]}

Sanchez-Salinas, Enrique ^{[1
]}

Jimenez-Tobon, Gloria Alicia ^{[2
]}

Penninckx, Michel ^{[2
]}

Laura Ortiz-Hernandez, Maria ^{[1
]}

机构：

[1] Univ Autonoma Estado Morelos, Ctr Invest Biotecnol, Lab Invest Ambientales, Colonia Chamilpa Cuernav 62209, Morelos, Mexico

[2] Univ Libre Bruxelles, Lab Ecol & Phisiol Microbienne, B-1180 Brussels, Belgium

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 168卷 / 2-3期

关键词：

Immobilization; Tezontle; Alginate; Removal; Consortium; INOCULANT CARRIERS; BIODEGRADATION; DEGRADATION; PLANT; NITROPHENOL; BIOFILM; GROWTH; BEADS;

D O I：

10.1016/j.jhazmat.2009.03.047

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In order to remove methyl-parathion (MP) and tetrachlorvinphos (TCF), a bacterial consortium was immobilized with two supports consisting of alginate beads or stones of tezontle colonized by biofilm. Removal kinetics were recorded for suspended and immobilized consortium using a mineral salt medium supplemented with MP and TCF at 25 mg/L and with 0.1% (w/v) glucose as a co-substrate. The viability of the consortium cultivated in suspension was maintained for 6 days, whereas the viability of the consortium immobilized in alginate and tezontle supports was maintained for up to 11 and 13 days, respectively. Growth was enhanced when using glucose as a co-substrate. The percentage of MP removed was significantly higher (alpha = 0.05) when consortium was immobilized in alginate beads and biofilm on tezontle as compared to suspension culture. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1554 / 1561

页数：8

共 39 条

[31] Simultaneous degradation of organophosphorus pesticides and p-nitrophenol by a genetically engineered Moraxella sp with surface-expressed organophosphorus hydrolase [J].