The use of a silicone-based biomembrane for microaerobic H2S removal from biogas

被引：8

作者：

Pokoma-Krayzelova, Lucie ^{[1
,2
]}

Bartacek, Jan ^{[1
]}

Vejmelkova, Dana ^{[1
]}

Alvarez, Ana A. ^{[1
]}

Slukova, Petra ^{[1
]}

Prochazka, Jindrich ^{[3
]}

Volcke, Eveline I. P. ^{[2
]}

Jenicek, Pavel ^{[1
]}

机构：

[1] Univ Chem & Technol Prague, Dept Water Technol & Environm Engn, Tech 5, Prague 16628 6, Czech Republic

[2] Univ Ghent, Dept Biosyst Engn, Coupure Links 653, B-9000 Ghent, Belgium

[3] FARMTEC As, Tisova 326, Jistebnice 39133, Czech Republic

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2017年 / 189卷

关键词：

Biomembrane; Hydrogen sulfide removal; Microaeration; Oxygen; Sulfur oxidizing bacteria; HYDROGEN-SULFIDE REMOVAL; DESULFURIZATION; MICROAERATION; PERMEABILITY; DIFFUSIVITY; EFFICIENCY; DIGESTION; MEMBRANES; REACTORS; NITROGEN;

D O I：

10.1016/j.seppur.2017.07.077

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A lab-scale bio-membrane unit was developed to improve H2S removal from biogas through microaeration. Biomembrane separated biogas from air and consisted of a silicone tube covered by microaerobic biofilm. This setup allowed efficient H2S removal while minimizing biogas contamination with oxygen and nitrogen. The transport and removal of H2S, N-2, O-2, CH4 and CO2 through bare membrane, wet membrane and biomembrane was investigated. Membrane allowed the transfer of gases through it as long as there was enough driving force to induce it. H2S concentration in biogas decreased much faster with the biomembrane. The permeation of gases through the membranes decreased in order: H2S > CO2 > CH4 > O-2 > N-2. H2S removal efficiency of more than 99% was observed during the continuous experiment. Light yellow deposits on the membrane indicated the possible elemental sulfur formation due to biological oxidation of H2S. Thiobacillus thioparus was detected by FISH and PCR-DGGE.

引用

页码：145 / 152

页数：8

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