Phenol and sulfide oxidation in a denitrifying biofilm reactor and its microbial community analysis

被引：34

作者：

Beristain-Cardoso, Ricardo ^{[2
]}

Texier, Anne-Claire ^{[2
]}

Alpuche-Solis, Angel ^{[3
]}

Gomez, Jorge ^{[2
]}

Razo-Flores, Elias ^{[1
]}

机构：

[1] Inst Potosino Invest Cient & Tecnol, Div Ciencias Ambientales, San Luis Potosi 78216, Slp, Mexico

[2] Univ Autonoma Metropolitana Iztapalapa, Div CBS, Dept Biotecnol, Mexico City 09340, DF, Mexico

[3] Inst Potosino Invest Cient & Tecnol, Div Mol Biol, San Luis Potosi 78216, Slp, Mexico

来源：

PROCESS BIOCHEMISTRY | 2009年 / 44卷 / 01期

关键词：

Biofilm; Denitrification; Phenol oxidation; Sulfide oxidation; 16S rRNA gene; FLUIDIZED-BED REACTOR; HYDROGEN-SULFIDE; ANAEROBIC DEGRADATION; SULFATE REDUCTION; ACETATE OXIDATION; FATTY-ACIDS; 16S RDNA; CULTURES; SULFUR; BIODEGRADATION;

D O I：

10.1016/j.procbio.2008.09.002

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A microbial consortium attached onto a polyethylene support was used to evaluate the simultaneous oxidation of sulfide and phenol by denitrification. The phenol, sulfide and nitrate loading rates applied to an inverse fluidized bed reactor were up to 168 mg phenol-C/(l d), 37 mg S2- /(l d) and 168 mg NO3--N/(l d), respectively. Under steady state operation the consumption efficiencies of phenol, sulfide and nitrate were 100%. The N-2 yield (g N-2/g NO3--N) was 0.89. The phenol was mineralized resulting in a yield of 0.82 g bicarbonate-C/g phenol-C and sulfide was completely oxidized to sulfate with a yield of 0.99 g SO42--S/g S2-. 16S rRNA gene-based microbial community analysis of the denitrifying biofilm showed the presence of Thauera aromatica, Thiobacillus denitrificans, Thiobacillus sajanensis and Thiobacillus sp. This is the first work reporting the simultaneous oxidation of sulfide and phenol in a denitrifying biofilm reactor. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：23 / 28

页数：6

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