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Content Provider | World Health Organization (WHO)-Global Index Medicus |
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Author | Liu, Zhengang Balasubramanian, Rajasekhar Kaushik, Rajni Parshetti, Ganesh K. |
Description | Author Affiliation: Kaushik R ( Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Republic of Singapore.); Parshetti GK ( Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Republic of Singapore.); Liu Z ( Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Republic of Singapore.); Balasubramanian R ( Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Republic of Singapore. Electronic address: ceerbala@nus.edu.sg.) |
Abstract | Food waste was subjected to enzymatic hydrolysis prior to hydrothermal treatment to produce hydrochars and bio-oil. Pre-treatment of food waste with an enzyme ratio of 1:2:1 (carbohydrase:protease:lipase) proved to be effective in converting food waste to the two products with improved yields. The carbon contents and calorific values ranged from 43.7% to 65.4% and 17.4 to 26.9 MJ/kg for the hydrochars obtained with the enzyme-assisted pre-treatment, respectively while they varied from 38.2% to 53.5% and 15.0 to 21.7 MJ/kg, respectively for the hydrochars obtained with no pre-treatment. Moreover, the formation of carbonaceous microspheres with low concentrations of inorganic elements and diverse surface functional groups was observed in the case of enzyme-assisted food waste hydrochars. The enzymatic pre-treatment also facilitated the formation of the bio-oil with a narrow distribution of organic compounds and with the highest yield obtained at 350 °C. |
ISSN | 09608524 |
Volume Number | 168 |
e-ISSN | 18732976 |
Journal | Bioresource Technology |
Language | English |
Publisher | Elsevier |
Publisher Date | 2014-09-01 |
Publisher Place | Great Britain (UK) |
Access Restriction | Subscribed |
Subject Keyword | Charcoal Chemistry Enzymes Metabolism Food Oils Refuse Disposal Methods Temperature Water Pharmacology Hydrolysis Drug Effects Photoelectron Spectroscopy Solutions Time Factors Waste Products Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
Content Type | Text |
Resource Type | Article |
Subject Domain (in MeSH) | Inorganic Chemicals Enzymes and Coenzymes Lipids Complex Mixtures Pharmaceutical Preparations Investigative Techniques Physical Phenomena Chemical Phenomena Physiological Phenomena Environment and Public Health |
Subject | Bioengineering Renewable Energy, Sustainability and the Environment Waste Management and Disposal Environmental Engineering Medicine |
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