Cost and Benefit Assessment of Setting Wastewater Sensor Web in Sinying Industrial Park
Date Issued
2015
Date
2015
Author(s)
Li, Hsing-Fong
Abstract
Industrial development in Taiwan plays a key role in both economic growth and environmental protection. Because the environmental consciousness is awakening in these years, people pay more attention to wastewater draining from industrial parks and major industries. Recently, water quality automatic monitoring and information transmitting systems were applied to wastewater effluent from industrial park. However, the law only request specific industrial parks and major industries to set up wastewater quality automatic monitoring system. It can’t prevent some plants in industrial park from draining illegal. Considering three options for setting sensor web, respectively at outlets of wastewater plants, junctions of wastewater sewers and junctions of storm sewers, economic feasibility by using the net present value method, NPV, and sensitivity analysis were investigated in this study. As a result, the best program is to set up water quality automatic monitoring system at junctions of wastewater sewers. Its net present value is largest and positive. The other two programs get negative NPVs. If three programs could be set up altogether, the total NPV will still be positive and remain economically feasible. The results of sensitivity analysis showed that the most sensitive factors for three programs are setting cost of sensor web, the service fees of wastewater treatment plant and the fines for inspection, respectively.
Subjects
Automatic monitoring
sensor web
net present value (NPV)
economic feasibility
sensitivity analysis
SDGs
Type
thesis
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