TY - JOUR
T1 - Comparative environmental and economic life cycle assessment of high solids anaerobic co-digestion for biosolids and organic waste management
AU - Lee, Eunyoung
AU - Oliveira, Deborah Stolte Bezerra Lisboa
AU - Oliveira, Luiza Stolte Bezerra Lisboa
AU - Jimenez, Eduardo
AU - Kim, Youngwoon
AU - Wang, Meng
AU - Ergas, Sarina J.
AU - Zhang, Qiong
N1 - Funding Information:
This material is based upon work supported by the William W. "Bill" Hinkley Center for Solid and Hazardous Waste Management in the U.S. and the US National Science Foundation under Grant No. 1243510 . Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the sponsors. The authors would like to thank the staff at Hillsborough County Department of Public Utilities for providing information, valuable insights and experiences for this research. Appendix A
Funding Information:
This material is based upon work supported by the William W. ?Bill? Hinkley Center for Solid and Hazardous Waste Management in the U.S. and the US National Science Foundation under Grant No. 1243510. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the sponsors. The authors would like to thank the staff at Hillsborough County Department of Public Utilities for providing information, valuable insights and experiences for this research.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2020/3/15
Y1 - 2020/3/15
N2 - High-Solids Anaerobic co-Digestion (HS-AcD) of sewage sludge (biosolids) with the organic fraction of municipal solid waste is a promising waste management alternative due to high methane yields, lower reactor volume requirements, lower energy inputs, and less leachate production than liquid anaerobic digestion. This study evaluated the environmental and economic burdens and benefits of HS-AcD of biosolids, Food Waste (FW), and Yard Waste (YW) using Life Cycle Assessment (LCA) and Life Cycle Cost Analysis (LCCA) methods using Hillsborough County, Florida in the U.S. as a case study. Results for HS-AcD were compared with incineration, composting, and landfilling, with and without landfill gas use. The results showed that HS-AcD of a mixture of biosolids, FW, and YW had the lowest environmental impacts in all categories analyzed (global warming potential, acidification, eutrophication, and ecotoxicity). In terms of economics, HS-AcD had the lowest life cycle cost, with or without considering land acquisition. The results show that HS-AcD is the best choice to manage biosolids and the organic waste in Hillsborough County in terms of both environmental and economic sustainability.
AB - High-Solids Anaerobic co-Digestion (HS-AcD) of sewage sludge (biosolids) with the organic fraction of municipal solid waste is a promising waste management alternative due to high methane yields, lower reactor volume requirements, lower energy inputs, and less leachate production than liquid anaerobic digestion. This study evaluated the environmental and economic burdens and benefits of HS-AcD of biosolids, Food Waste (FW), and Yard Waste (YW) using Life Cycle Assessment (LCA) and Life Cycle Cost Analysis (LCCA) methods using Hillsborough County, Florida in the U.S. as a case study. Results for HS-AcD were compared with incineration, composting, and landfilling, with and without landfill gas use. The results showed that HS-AcD of a mixture of biosolids, FW, and YW had the lowest environmental impacts in all categories analyzed (global warming potential, acidification, eutrophication, and ecotoxicity). In terms of economics, HS-AcD had the lowest life cycle cost, with or without considering land acquisition. The results show that HS-AcD is the best choice to manage biosolids and the organic waste in Hillsborough County in terms of both environmental and economic sustainability.
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U2 - 10.1016/j.watres.2019.115443
DO - 10.1016/j.watres.2019.115443
M3 - Article
C2 - 31945640
AN - SCOPUS:85077676424
SN - 0043-1354
VL - 171
JO - Water Research
JF - Water Research
M1 - 115443
ER -
