کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7073087 | 1459944 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of hydrolysis and volatile fatty acids production from sugarcane filter cake: Effects of urea supplementation and sodium hydroxide pretreatment
ترجمه فارسی عنوان
بهینه سازی هیدرولیز و تولید اسیدهای چرب فرار از کیک فیلتر نیشکر: اثرات مکمل اوره و پیشگیری از هیدروکسید سدیم
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کلمات کلیدی
نیشکر، کیک فیلتر، هضم بی هوازی اسید چرب فرار، پیش درمان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Different methods for optimization the anaerobic digestion (AD) of sugarcane filter cake (FC) with a special focus on volatile fatty acids (VFA) production were studied. Sodium hydroxide (NaOH) pretreatment at different concentrations was investigated in batch experiments and the cumulative methane yields fitted to a dual-pool two-step model to provide an initial assessment on AD. The effects of nitrogen supplementation in form of urea and NaOH pretreatment for improved VFA production were evaluated in a semi-continuously operated reactor as well. The results indicated that higher NaOH concentrations during pretreatment accelerated the AD process and increased methane production in batch experiments. Nitrogen supplementation resulted in a VFA loss due to methane formation by buffering the pH value at nearly neutral conditions (â¼6.7). However, the alkaline pretreatment with 6Â g NaOH/100Â g FCFM improved both the COD solubilization and the VFA yield by 37%, mainly consisted by n-butyric and acetic acids.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 199, January 2016, Pages 235-244
Journal: Bioresource Technology - Volume 199, January 2016, Pages 235-244
نویسندگان
Leandro Janke, Athaydes Leite, Karla Batista, Sören Weinrich, Heike Sträuber, Marcell Nikolausz, Michael Nelles, Walter Stinner,