2019_EJRNL_PP_BOYUE_ZHENG_1.pdf
Terbatas Lili Sawaludin Mulyadi
» ITB
Terbatas Lili Sawaludin Mulyadi
» ITB
Wastewater discharge is a burden on environmentally sustainable development, especially in the waterdeficient 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