Which is more cost-effective? A comparison of two wastewater treatment models in China–Singapore Suzhou Industrial Park,China |
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| Authors: | Zengwei Yuan Ling Zhang Jun Bi |
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| Institution: | 1. Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, 15782, Santiago de Compostela, Galicia, Spain;2. Peruvian LCA Network, Department of Engineering, Pontificia Universidad Católica del Perú, 1801 Avenida Universitaria, San Miguel, Lima 32, Perú;3. CETaqua, Water Technology Centre, 08940, Cornellà de Llobregat, Barcelona, Spain;4. Department of Economic Policy, University of Barcelona, Av. Diagonal, 690 08034 Barcelona, Spain |
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| Abstract: | The study examines the cost-effectiveness of two wastewater treatment models in China so as to provide a choice for policymaking. We choose the wastewater treatment system in China–Singapore Suzhou Industrial Park as case study because: 1) its sharing wastewater treatment plant (WTP); 2) its WTP was invested and operated by a private company; 3) its firms did not discharge illegal; 4) accessibility of data. The actual costs are determined by an extensive survey of 493 firms registered with the park. These data are also used to create a benchmark model assuming that each firm complies with environmental regulations by constructing its own WTP. The results show that sharing the WTPs greatly reduces the overall treatment cost. Furthermore, it reduces illegal discharges and improves the overall environmental performance of the park. Finally, it enforces cooperation among companies located in the park and creates a good image attracting more enterprises to join in. |
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