کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5744059 1618001 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research paperEvaluation and kinetics of biogas yield from morning glory (Ipomoea aquatica) co-digested with water hyacinth (Eichhornia crassipes)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Research paperEvaluation and kinetics of biogas yield from morning glory (Ipomoea aquatica) co-digested with water hyacinth (Eichhornia crassipes)
چکیده انگلیسی

Morning glory (MG, Ipomoea aquatica) with water hyacinth (WH, Eichhornia crassipes) were co-digested for 17 weeks at five different MG:WH ratios of 100:0, 70:30, 50:50, 30:70 and 0:100 (w:w dry basis). Fixed quantity of cow dung slurry was added to each treatment as inoculum to seed the digesters. Biodegradation and maximum biogas yield models based on first-order kinetics were fitted to the experimental biogas yields to describe the cumulative and predict maximum biogas yields, respectively from each treatment. From the results, it was observed that MG was viable and prolific for biogas production. Although co-digestion did not have significant (p > 0.05) effect on biogas yield, MG:WH (50:50) recorded the highest yield (0.29 dm3 kg−1 vs fed day−1). However, co-digestion affected (p ≤ 0.05) total bacterial count. The biodegradation model described the observed biogas yields satisfactorily as indicated by the high R2. Similarly, the high R2 values and percentages of predicted maximum yield/observed maximum yield showed that the maximum biogas yield model predicted the maximum yields satisfactorily. Biogas yield from MG:WH (100:0) was the best described and predicted by the biodegradation and maximum yield models, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Engineering - Volume 98, January 2017, Pages 98-104
نویسندگان
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