کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4989666 | 1456931 | 2017 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The use of a silicone-based biomembrane for microaerobic H2S removal from biogas
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کلمات کلیدی
MBRSRBSOBDAPIBMU4′,6-diamidino-2-phenylindole - 4 '، 6-دیامیدینو-2-فنیلینولBSA - BSAbovine serum albumin - آلبومین سرم گاوOxygen - اکسیژنSulfur oxidizing bacteria - باکتری اکسید کننده گوگردMembrane bioreactor - بیوراکتور غشاییBiomembrane - بیومبوHydrogen sulfide removal - حذف سولفید هیدروژنSulfate reducing bacteria - سولفات کاهش باکتری هاMicroaeration - میکروآرایش
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
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, N2, O2, 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: H2SÂ >Â CO2Â >Â CH4Â >Â O2Â >Â N2. 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 189, 22 December 2017, Pages 145-152
Journal: Separation and Purification Technology - Volume 189, 22 December 2017, Pages 145-152
نویسندگان
Lucie Pokorna-Krayzelova, Jan Bartacek, Dana Vejmelkova, Ana A. Alvarez, Petra Slukova, Jindrich Prochazka, Eveline I.P. Volcke, Pavel Jenicek,