期刊
5TH INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT RESEARCH (ICEER 2018)
卷 153, 期 -, 页码 237-241出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2018.10.008
关键词
Anaerobic co-digestion; biogas production; copper suplementation; domestic wastewater; food waste
资金
- Macau Science and Technology Development Fund [FDCT044/2017/AFJ, FDCT115/2016/A3]
- University of Macau Multi-Year Research Grant [MYRG2017-00181-FST]
This work aims to study the effect of copper supplementation (as CuCl2), at different concentrations (10, 30, and 50 mg/L Cu2+) to enhance the conversion of organics present in a mixture of food waste and domestic wastewater (0.183, v/v) to biogas. The UASB reactor was operated under mesophilic conditions (35 +/- 0.1 degrees C) at hydraulic retention time of 10 days in the intermittent feed mode (48 h feed/48 h feedless). Regardless of the Cu2+ concentration supplemented, a higher cumulative biogas yield (260-329 mL CH4/g CODremoved) was obtained compared to the control without supplementation (175 mL CH4/g CODremoved). The microelement supplementation reduced the amount of short chain fatty acids accumulated in the reactor by 35%, stimulating the methane production. (C) 2018 The Authors. Published by Elsevier Ltd.
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