| Title |
Bioenergy recovery from methanogenic co-digestion of food waste and sewage sludge by a high-solid anaerobic membrane bioreactor (AnMBR): mass balance and energy potential |
| ID_Doc |
41564 |
| Authors |
Cheng, H; Li, YM; Hu, YS; Guo, GZ; Cong, M; Xiao, BY; Li, YY |
| Title |
Bioenergy recovery from methanogenic co-digestion of food waste and sewage sludge by a high-solid anaerobic membrane bioreactor (AnMBR): mass balance and energy potential |
| Year |
2021 |
| Published |
|
| DOI |
10.1016/j.biortech.2021.124754 |
| Abstract |
To support smart city in terms of municipal waste management and bioenergy recovery, a high-solid anaerobic membrane bioreactor (AnMBR) was developed for sewage sludge (SeS) and food waste (FW) treatment in this study. COD mass balance showed that 54.1%, 66.9%, 73.5%, 91.4% and 93.5% of the COD input was converted into methane at the FW ratio of 0, 25%, 50%, 75% and 100%, respectively. The corresponding net energy balance was 13.6, 14.1, 17.1, 22.9 and 27.4 kJ/g-VS, respectively. An important finding of this investigation was that, for the first time, the relationship between net energy balance and carbon to nitrogen (C/N) ratio was revealed and the established sigmoid-type function was shown to be capable of predicting energy balance at different C/N ratios regardless of the region. The outcomes of this study show the potential of high-solid AnMBRs in SeS and FW treatment for supporting smart cities in the future. |
| Author Keywords |
AnMBR; Anaerobic co-digestion; Sewage sludge; COD mass balance; EROI; Smart city |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000620172900010 |
| WoS Category |
Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels |
| Research Area |
Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels |
| PDF |
|