Removal of odorant dimethyl disulfide under alkaline and neutral conditions in biotrickling filters

被引：17

作者：

Arellano-Garcia, L. ^{[2
]}

Gonzalez-Sanchez, A. ^{[1
,5
]}

Van Langenhove, H. ^{[3
]}

Kumar, A. ^{[4
]}

Revah, S. ^{[1
]}

机构：

[1] Univ Autonoma Metropolitana Cuajimalpa, Dept Proc & Tecnol, Mexico City 01120, DF, Mexico

[2] Univ Autonoma Metropolitana Iztapalapa, Mexico City 09340, DF, Mexico

[3] Univ Ghent, Fac Biosci Engn, Res Grp EnVOC, B-9000 Ghent, Belgium

[4] UNESCO IHE Pollut Prevent & Control Core, NL-2601 DA Delft, Netherlands

[5] Univ Nacl Autonoma Mexico, Inst Ingn, Circuito Escolar, Mexico City 04510, DF, Mexico

来源：

WATER SCIENCE AND TECHNOLOGY | 2012年 / 66卷 / 08期

关键词：

alkaliphilic biomass; biofiltration; biotrickling filter; dimethyl disulfide odors; neutrophilic biomass; SULFIDE; GASES;

D O I：

10.2166/wst.2012.365

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of this paper was to evaluate the performance of biotrickling filters (BTFs) for treating low concentrations of dimethyl disulfide (DMDS), using different bacterial consortia adapted to consume reduced sulfur compounds under alkaline (pH approximate to 10) or neutral (pH approximate to 7) conditions. Solubility experiments indicated that the partition of DMDS in neutral and alkaline mineral media was similar to the value with distilled water. Respirometric assays showed that oxygen consumption was around ten times faster in the neutrophilic as compared with the alkaliphilic consortium. Batch experiments demonstrated that sulfate was the main product of the DMDS degradation. Two laboratory-scale BTFs were implemented for the continuous treatment of DMDS in both neutral and alkaline conditions. Elimination capacities of up to 17 and 24 g(DMDS) m(-3) h(-1) were achieved for the alkaliphilic and neutrophilic reactors with 100% removal efficiency after an initial adaptation and biomass build-up.

引用

页码：1641 / 1646

页数：6

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