Journal
FUEL
Volume 198, Issue -, Pages 170-174Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2016.11.046
Keywords
Anaerobic digestion; UASB; Vinasse; COD; BOD5; BMP
Categories
Funding
- National Science and Technology Council
- Mexican National Technologic/Tuxtla Gutierrez Technologic Institute [267951]
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This work evaluated the redesign of an Upflow Anaerobic Sludge Blanket (UASB) bioreactor to increase biogas production from anaerobic digestion of vinasse and compared the redesign UASB bioreactor with a conventional UASB design. Vinasse contains a high level of organic matter, 120.2 +/- 18.4 g O-2/L of chemical organic demand (COD), and a 0.8 biodegradability index (BI). Thus, vinasse is a potential nutrient source for biogas production by anaerobic digestion. The modified UASB bioreactor has an innovation that consisted in a second leach bed sludge, which improved the methane proportion in biogas producing 2140 mL CH4/day as compared to the traditional bioreactor (1840 mL CH4/day). (C) 2016 Elsevier Ltd. All rights reserved.
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