气候变化领域集成服务门户(CCPortal): Unravelling the environmental and economic impacts of innovative technologies for the enhancement of biogas production and sludge management in wastewater systems

CCPortal

DOI	10.1016/j.jenvman.2020.110965
	Unravelling the environmental and economic impacts of innovative technologies for the enhancement of biogas production and sludge management in wastewater systems
	Arias A.; Behera C.R.; Feijoo G.; Sin G.; Moreira M.T.
发表日期	2020
ISSN	3014797
卷号	270
英文摘要	The retrofitting of wastewater treatment plants (WWTPs) should be addressed under sustainability criteria. It is well known that there are two elements that most penalize wastewater treatment: (i) energy requirements and (ii) sludge management. New technologies should reduce both of these drawbacks to address technical efficiency, carbon neutrality and reduced economic costs. In this context, the main objective of this work was to evaluate two real plants of different size in which major modifications were considered: enhanced recovery of organic matter (OM) in the primary treatment and partial-anammox nitrification process in the secondary treatment. Plant-wide modelling provided an estimate of the input and output flows of each process unit as well as the diagnosis of the main performance indicators, which served as a basis for the calculation of environmental and economic indicators using the LCA methodology. The combination of high-rate activated sludge (HRAS) + partial nitrification Anammox can decrease the environmental impacts by about 70% in the climate change (CC) category and 50% in the eutrophication potential (EP) category. Moreover, costs can be reduced by 35–45% depending on the size of the plant. In addition, the enhanced rotating belt filter (ERBF) can also improve the environmental profile, but to a lesser extent than the previous scenario, only up to 10% for CC and 15% for EP. These positive results are only possible considering the production of energy through biogas valorization according to the waste-to-energy scheme. © 2020 Elsevier Ltd
英文关键词	Enhanced rotating belt filter (ERBF) integrated fixed film activated sludge (IFAS); High rate activated sludge (HRAS); Life cycle assessment (LCA); Scale-up analysis; Wastewater treatment modelling
scopus关键词	biogas; organic matter; biofuel; activated sludge; anaerobic digestion; biogas; climate change; economic impact; eutrophication; innovation; life cycle analysis; oxidation; performance assessment; sustainability; wastewater treatment; wastewater treatment plant; activated sludge; anaerobic ammonium oxidation; Article; calculation; climate change; clinical evaluation; economic aspect; ecotoxicity; energy consumption; environmental impact; eutrophication; high rate activated sludge; life cycle assessment; medical technology; nitrification; nonhuman; sludge management; statistically significant result; waste water; waste-to-energy; sewage; Biofuels; Nitrification; Sewage; Waste Disposal, Fluid; Waste Water
来源期刊	Journal of Environmental Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176601
作者单位	Department of Chemical Engineering, CRETUS Institute. Universidade de Santiago de Compostela, Santiago de Compostela, Galicia 15782, Spain; Process and Systems Engineering Center (PROSYS), Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, Kgs. Lyngby2800, Denmark
推荐引用方式 GB/T 7714	Arias A.,Behera C.R.,Feijoo G.,et al. Unravelling the environmental and economic impacts of innovative technologies for the enhancement of biogas production and sludge management in wastewater systems[J],2020,270.
APA	Arias A.,Behera C.R.,Feijoo G.,Sin G.,&Moreira M.T..(2020).Unravelling the environmental and economic impacts of innovative technologies for the enhancement of biogas production and sludge management in wastewater systems.Journal of Environmental Management,270.
MLA	Arias A.,et al."Unravelling the environmental and economic impacts of innovative technologies for the enhancement of biogas production and sludge management in wastewater systems".Journal of Environmental Management 270(2020).