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Energy-water nexus analysis of wastewater treatment plants (WWTPs) in China based on statistical methodologies
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2018 (English)In: CLEANER ENERGY FOR CLEANER CITIES / [ed] Wang, H; Wang, X; Yan, J; Wu, J; Yang, Y; Li, H, Elsevier, 2018, Vol. 152, p. 259-264Conference paper, Published paper (Refereed)
Abstract [en]

Wastewater treatment plants (WWTPs) are considered as energy-intensive facilities. Against the background of stricter policy requirements and discharge standard, thousands of municipal WWTPs are experiencing upgrading and reconstruction in China. However, the accompanying energy consumption cannot be ignored. Based on the statistical analysis of energy consumption and relevant factors from data of more than six thousand WWTPs over China, in this paper we analyzed the most influential factors related to energy consumption, which include treatment technology, wastewater amount, removed pollutants, social and economic characteristics, etc. Furthermore, we set up systematic method of energy performance assessment for WWTPs and explored the potential of energy saving in WWTPs. Results showed that processing capacity, organic pollutant concentration, discharge standard and economic factors have major effects on energy efficiency. Although sludge treatment and disposal normally consume intensive energy, it is possible to recover energy from biomass in the sludge. The results indicate that there is huge potential for energy saving and recovery in WWTPs, and we propose a conceptual roadmap for energy efficiency improving in WWTPs in China.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 152, p. 259-264
Series
Energy Procedia, ISSN 1876-6102 ; 152
Keywords [en]
Electricity consumption, Energy efficiency, Energy-water nexus, Wastewater treatment plant, Carbon capture, Digital storage, Energy conservation, Energy utilization, Organic pollutants, Reclamation, Sewage pumping plants, Sludge disposal, Statistical methods, Wastewater disposal, Wastewater treatment, Water treatment, Water treatment plants, Economic characteristics, Electricity-consumption, Energy performance assessments, Pollutant concentration, Sludge treatment and disposals, Statistical methodologies, Wastewater treatment plants
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-247449DOI: 10.1016/j.egypro.2018.09.116ISI: 000470975400042Scopus ID: 2-s2.0-85058231803OAI: oai:DiVA.org:kth-247449DiVA, id: diva2:1313168
Conference
Applied Energy Symposium and Forum - Low-Carbon Cities and Urban Energy Systems (CUE),Shanghai, PEOPLES R CHINA,JUN 05-07, 2018
Note

QC20190502

Available from: 2019-05-02 Created: 2019-05-02 Last updated: 2019-11-15Bibliographically approved

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Publisher's full textScopushttp://applied-energy.org/ccus2018/

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Yan, Jinyue

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