کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4996466 1459901 2017 36 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nutrients and COD removal of swine wastewater with an isolated microalgal strain Neochloris aquatica CL-M1 accumulating high carbohydrate content used for biobutanol production
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Nutrients and COD removal of swine wastewater with an isolated microalgal strain Neochloris aquatica CL-M1 accumulating high carbohydrate content used for biobutanol production
چکیده انگلیسی
In this study, a carbohydrate-rich microalga Neochloris aquatica CL-M1 was adapted to grow in swine wastewater. The effects of cultivation conditions (i.e., temperature, light intensity or N/P ratio) on COD/nutrients removal and carbohydrate-rich biomass production were investigated. The results indicate that the highest COD removal (81.7%) and NH3-N removal (96.2%) was achieved at 150 µmol m−2 s−1 light intensity, 25 °C and N/P ratio = 1.5/1. The highest biomass concentration and carbohydrate content was 6.10 g L−1 and 50.46%, respectively, when N/P ratio = 5/1. The resulting carbohydrate-rich microalgal biomass was pretreated and used as a feedstock for butanol fermentation. With the initial sugar concentration of 48.7 g L−1 glucose and 3.4 g L−1 xylose in the pretreated biomass, the butanol concentration, yield, and productivity were 12.0 g L−1, 0.60 mol mol−1 sugar, and 0.89 g L−1 h−1, respectively, indicating the high potential of using Neochloris aquatica CL-M1 for butanol fermentation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 242, October 2017, Pages 7-14
نویسندگان
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