کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7082521 | 1460004 | 2013 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Harvesting microalgae grown on wastewater
ترجمه فارسی عنوان
برداشت میکروالگوها در فاضلاب رشد می کند
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کلمات کلیدی
جلبک، فاضلاب، انعقاد، آبگیری ارزیابی چرخه حیات،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The costs and life cycle impacts of microalgae harvesting for biofuel production were investigated. Algae were grown in semi-continuous culture in pilot-scale photobioreactors under natural light with anaerobic digester centrate as the feed source. Algae suspensions were collected and the optimal coagulant dosages for metal salts (alum, ferric chloride), cationic polymer (Zetag 8819), anionic polymer (E-38) and natural coagulants (Moringa Oleifera and Opuntia ficus-indica cactus) were determined using jar tests. The relative dewaterability of the algae cake was estimated by centrifugation. Alum, ferric chloride and cationic polymer could all achieve >91% algae recovery at optimal dosages. Life cycle assessment (LCA) and cost analysis results revealed that cationic polymer had the lowest cost but the highest environmental impacts, while ferric chloride had the highest cost and lowest environmental impacts. Based on the LCA results, belt presses are the recommended algae dewatering technology prior to oil extraction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 139, July 2013, Pages 101-106
Journal: Bioresource Technology - Volume 139, July 2013, Pages 101-106
نویسندگان
Innocent Udom, Behnaz H. Zaribaf, Trina Halfhide, Benjamin Gillie, Omatoyo Dalrymple, Qiong Zhang, Sarina J. Ergas,