کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8071785 | 1521399 | 2018 | 47 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Assessment of continuous fermentative hydrogen and methane co-production using macro- and micro-algae with increasing organic loading rate
ترجمه فارسی عنوان
ارزیابی تولید همزمان تولید هیدروژن و متان با استفاده از میکرو و جلبک با افزایش میزان بارگذاری آلی
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کلمات کلیدی
ماکرو جلبک، میکرو جلبک، دو مرحلۀ همساز سازی، هیدروژن، متان،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
A two-stage continuous fermentative hydrogen and methane co-production using macro-algae (Laminaria digitata) and micro-algae (Arthrospira platensis) at a C/N ratio of 20 was established. The hydraulic retention time (HRT) of first-stage H2 reactor was 4 days. The highest specific hydrogen yield of 55.3â¯mL/g volatile solids (VS) was obtained at an organic loading rate (OLR) of 6.0 gVS/L/d. In the second-stage CH4 reactor at a short HRT of 12 days, a specific methane yield of 245.0 mL/gVS was achieved at a corresponding OLR of 2.0 gVS/L/d. At these loading rates, the two-stage continuous system offered process stability and effected an energy yield of 9.4 kJ/gVS, equivalent to 77.7% of that in an idealised batch system. However, further increases in OLR led to reduced hydrogen and methane yields in both reactors. The process was compared to a one-stage anaerobic co-digestion of algal mixtures at an HRT of 16 days. A remarkably high salinity level of 13.3â¯g/kg was recorded and volatile fatty acid accumulations were encountered in the one-stage CH4 reactor. The two-stage system offered better performances in both energy return and process stability. The gross energy potential of the advanced gaseous biofuels from this algal mixture may reach 213â¯GJ/ha/yr.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 151, 15 May 2018, Pages 760-770
Journal: Energy - Volume 151, 15 May 2018, Pages 760-770
نویسندگان
Lingkan Ding, Enrique Chan Gutierrez, Jun Cheng, Ao Xia, Richard O'Shea, Amita Jacob Guneratnam, Jerry D. Murphy,