Volume 15: Low Carbon Cities and Urban Energy Systems: Part IV

The spatial regulation and energy efficiency analysis of wastewater treatment plants in the Beijing-Tianjin-Hebei region Cai Ouyang, Cuncun Duan, Bin Chen, Dan Song

Abstract

China’s wastewater treatment facilities have become increasingly energy-intensive in recent decades. In this study, the relative energy efficiencies of 283 regional wastewater treatment plants in Jing-jin-Ji area (JJJ) were evaluated using a slacks-based measure data envelopment analysis (DEA). Results showed that the efficiencies of 276 wastewater treatment plants have notable improving potential according to the production frontier of DEA. The energy cost of wastewater treatment plants (WWTPs) was quantified for JJJ and analyzed according to the spatial discrepancies. This paper may shed lights on assessment and evaluation of regional wastewater treatment plants considering the energy efficiency.

Keywords Energy cost, DEA, Energy-water nexus