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Metabolism of urban wastewater: Ecological network analysis for Guangdong Province, China

Zheng, Boyue, Huang, Guohe, Liu, Lirong, Zhai, Mengyu and Guan, Yuru (2019) Metabolism of urban wastewater: Ecological network analysis for Guangdong Province, China Journal of Cleaner Production, 217. pp. 510-519.

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Abstract

Wastewater discharge is a burden on environmentally sustainable development, especially in the water-deficient area. Existing Studies on wastewater discharge is not comprehensive for lacking analysis of mutual flow and necessary components. In this study, a wastewater metabolism input-output model is developed to achieve sustainable development through a novel perspective to depict the industrial wastewater flow among sectors. Since chemical oxygen demand and ammonia nitrogen are indicators for studying the degree of wastewater pollution, this paper also considers their wastewater to make the research synthetic and systematic. A case study of Guangdong Province, China, is conducted to further illustrate the potential benefits of the model in investigation of the sectors interactions. The results show that the wastewater discharge of Guangdong Province is considerable, with industrial wastewater, chemical oxygen demand wastewater and ammonia-nitrogen wastewater being 7.53 billion tons, 852 thousand tons and 69 thousand tons respectively. Some typical sectors have been distinguished based on ecological network analysis and input-output analysis for mitigating wastewater discharge, such as electronic equipment manufacture, chemical materials and paper manufacture, and tertiary industry. The implementation of the “Replace Subsidies with Rewards” policy is conducive to the discharge reduction of the system.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Centre for Environment and Sustainability
Authors : Zheng, Boyue, Huang, Guohe, Liu, Lirong, Zhai, Mengyu and Guan, Yuru
Date : 25 January 2019
Funders : National Key Research and Development Plan, National Science Foundation, 111 Program
DOI : 10.1016/j.jclepro.2019.01.222
Grant Title : National Key Research and Development Plan
Copyright Disclaimer : © 2019 Published by Elsevier Ltd.
Uncontrolled Keywords : Wastewater metabolism input-output model; Industrial wastewater; Chemical oxygen demand wastewater; Ammonia nitrogen wastewater; Policy recommendations; Guangdong province; China;
Additional Information : Embargo OK Metadata OK
Depositing User : James Marshall
Date Deposited : 16 Jul 2020 14:26
Last Modified : 16 Jul 2020 14:26
URI: http://epubs.surrey.ac.uk/id/eprint/858228

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