کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6664179 1427044 2017 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrogen sulfide removal from a biogas mimic by biofiltration under anoxic conditions
ترجمه فارسی عنوان
حذف سولفید هیدروژن از بیوگاز با بیوفیلتراسیون تحت شرایط بی هوازی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
The biofiltration of hydrogen sulfide present in a biogas mimic under anoxic conditions was performed using expanded schist and cellular concrete waste as packing materials. The impact of various parameters, such as H2S concentrations, Empty Bed Residence Time (EBRT) and molar ratio N/S, on the performances of biofilters was evaluated. At an EBRT of 300 s, expanded schist efficiently treated H2S concentrations up to 1100 ppmv (maximum elimination capacity ECmax = 30.3 g m−3 h−1). At an EBRT of 240 s, cellular concrete waste was an effective material for the treatment of concentrations of H2S up to 900 ppmv (ECmax = 25.2 g m−3 h−1). Whatever the molar ratio N/S selected, sulfate and elemental sulfur were produced in the biofilters. Both materials presented a satisfactory mechanical behavior with low pressure drops. Therefore, this study showed that biofilters could be used to treat moderate concentrations of H2S in biogas under anoxic conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Chemical Engineering - Volume 5, Issue 6, December 2017, Pages 5617-5623
نویسندگان
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