کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7072877 | 1459943 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Semi-continuous methane production from undiluted brown algae using a halophilic marine microbial community
ترجمه فارسی عنوان
تولید متان نیمه پیوسته از جلبکهای قهوه ای باز نشده با استفاده از یک جامعه میکروبی دریایی هالوفیلی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
تولید متان نیمه پیوسته، جلبکهای قهوه ای، شرایط نابجا، جامعه میکروبی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Acclimated marine sediment-derived culture was used for semi-continuous methane production from materials equivalent to raw brown algae, without dilution of salinity and without nutrient supply, under 3 consecutive conditions of varying organic loading rates (OLRs) and hydraulic retention time (HRT). Methane production was stable at 2.0 g VS/kg/day (39-day HRT); however, it became unstable at 2.9 g VS/kg/day (28-day HRT) due to acetate and propionate accumulation. OLR subsequently decreased to 1.7 g VS/kg/day (46-day HRT), stabilizing methane production beyond steady state. Methane yield was above 300 mL/g VS at all OLRs. These results indicated that the acclimated marine sediment culture was able to produce methane semi-continuously from raw brown algae without dilution and nutrient supply under steady state. Microbial community analysis suggested that hydrogenotrophic methanogens predominated among archaea during unstable methane production, implying a partial shift of the methanogenic pathway from acetoclastic methanogenesis to acetate oxidation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 200, January 2016, Pages 616-623
Journal: Bioresource Technology - Volume 200, January 2016, Pages 616-623
نویسندگان
Toyokazu Miura, Akihisa Kita, Yoshiko Okamura, Tsunehiro Aki, Yukihiko Matsumura, Takahisa Tajima, Junichi Kato, Yutaka Nakashimada,