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- Title
Economic comparison between wastewater treatment systems using simulation software.
- Authors
Latif, E. F.
- Abstract
Cost estimation may affect selection of wastewater treatment plant technology. The aim of this research is to determine the optimum wastewater treatment plant (WWTP) technology among performance convergent technologies that utilize a small footprint and comply with environmental Egyptian regulations, with a focus on their economic cost. Three wastewater treatment technologies: intermittent cycle extended aeration system (ICEAS), moving bed biofilm reactor (MBBR) and complete mix activated sludge (CMAS) were proposed, and simulated using GPS-X and CapdetWorks software to predict performances, calculate and compare the capital, operation and maintenance costs for them. The GPS-X simulation results for the three technologies performance proved that all these technologies can achieve effluent concentrations that comply with environmental Egyptian regulations. CapdetWorks cost estimation results demonstrated that; ICEAS aeration tank construction cost was higher than MBBR and CMAS technologies, and despite, that the MBBR aeration tank having a lower volume, the construction of CMAS system aeration tanks was less in cost (13.5% less), but the construction cost of MBBR's gravity thickeners and drying beds was less expensive than ICEAS and CMAS systems. The total construction cost was 19.6, 17.1 and 17.7 M $ and the operation and maintenance costs were 1.8, 1.5 and 2.1 M $/y, for ICEAS, MBBR and CMAS WWTPs, respectively. The operation and maintenance of drying beds represented 59%, 40% and 58% of the total operation and maintenance costs for ICEAS, MBBR and CMAS technologies respectively. MBBR technology WWTP is considered most cost-effective and more economic, where the price of 1 m3 was 0.47, 0.39 and 0.48 $ for ICEAS, MBBR and CMAS technologies respectively.
- Subjects
WASTEWATER treatment; AERATION tanks; SIMULATION software; MOVING bed reactors; SEWAGE disposal plants; FOOTPRINTS
- Publication
Desalination & Water Treatment, 2022, Vol 264, p91
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2022.28583