Evaluation of wastewater treatment alternatives for different water reuse applications with modeling and cost analysis

Uyanık, Pınar
Wastewater reclamation can be a solution to water scarcity. Several wastewater treatment schemes exist for specific water reuse applications. This thesis aims to evaluate different wastewater treatment schemes for a range of water reuse applications through modeling and cost analysis. For this purpose, different secondary level treatment schemes as conventional activated sludge (TS_A), extended aeration (TS_B) and A2O (TS_C) were modeled using BioWin for three wastewater characteristics and three flowrates. Cost analysis for secondary treatment level, where BioWin modeling results were included, and tertiary, advanced treatment levels were done for 30 years period, including capital and operational costs. The total and unit costs of reclaimed water were calculated for different treatment schemes (TS_1 to TS_6) assigned to different water reuse applications such as groundwater recharge, urban, agricultural, industrial and environmental reuse. The unit reclaimed water costs were found to range in $ 0.029/m³ to $ 0.601/m³ for different treatment schemes. If the user has a lower budget for water reuse application, such as unrestricted area irrigation or agricultural reuse, TS_1 (A2O + Filtration + UV + Cl), TS_3 (CAS/EXT/A2O + Filtration + UV + Cl), TS_4 (A2O/CAS/EXT) and TS_5 (CAS/EXT/A2O + UV + Cl) could be used. Reclaimed water from TS_2 (CAS/EXT/A2O + Filtration + UV + Cl + SAT) and TS_6 (A2O + MF + RO + UV + Cl) could be used as potable usage with higher unit treatment costs because of the requirement of a higher level of water quality. This thesis study revealed that the decision-maker can make a cost-benefit decision considering partial reuse to involve a low-cost alternative and decide on which process to follow depending on the water reuse application.


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Toğrul, Nevzat; Merzi, Nuri; Department of Civil Engineering (2015)
Management of water supply systems by an economic and efficient way is a significant issue for water authorities. Selection and operation of water supply elements appropriately to satisfy water need affects the energy consumption of the system. This study aims to constitute a long term rehabilitation plan for water supply elements (only storage tanks, pumps and transmission line pipes are in the scope of the study). A case study has been performed on N8.3 pressure zone of Ankara water distribution network. ...
Estimation the adsorption capacity of mining waste -Leonarite- for treatment
Kurt, Zöhre (2020-11-01)
As the limited resources are shrinking, there has been a demand to obtain solutions for potable water as well as creative solutions to treat it. One material that has not been explored is a waste product of coal mining- leonardite. Leonardite is highly produced in Turkey and has been exported to all over the world to be used in agriculture. The reasons why leonardite is working miracles in the agriculture has not been revealed but it contains humic acid and is a agriculture additive. It has a potential to a...
Alternative solutions for long missing streamflow data for sustainable water resources management
Mesta, Buket; Akgün, Ömer Burak; Kentel Erdoğan, Elçin (Informa UK Limited, 2020-08-01)
Sustainable water resources management requires long time series of streamflow data. In this study, a Takagi-Sugeno fuzzy rule-based (FRB) model is developed to reconstruct long periods of missing daily streamflow data which is a common problem in developing countries. The FRB model uses observations of neighbouring stream gauges, and thus is advantageous regarding data and time requirement compared to physical models. With the proper set of inputs, the FRB model provides better estimates than the hydrologi...
Comparison of groundwater recharge estimation techniques: a case study from the Kucuk Menderes River basin in Turkey
Gundogdu, A; Yazıcıgil, Hasan; Kirmizitas, H (2000-04-01)
Quantification of groundwater recharge is a basic prerequisite for efficient groundwater management. While there are several approaches to estimating groundwater recharge rates, some of the approaches proposed cannot be applied in basin-wide hydrogeological investigations due to a lack of data. Thus, some conventional recharge estimation techniques for which data are most often available have to be used in estimating groundwater recharge. In this study, water level fluctuation, the precipitation vs water le...
Comparison of energy consumption and carbon footprint of wastewater treatment systems through modeling
Okan, Bora; Ergüder Bayramoğlu, Tuba Hande.; Department of Environmental Engineering (2019)
With increasing population and developing regulations, wastewater treatment plants (WWTP) have started to become a higher energy consuming sector in order to serve higher capacities. In the design and management phases of a treatment plant, energy consumption and carbon footprint of the plant should be considered. In this regard, hypothetical and real case models are created to simulate and compare WWTP systems. In this thesis study, first, municipal WWTPs of Turkey were analyzed to determine the traditiona...
Citation Formats
P. Uyanık, “Evaluation of wastewater treatment alternatives for different water reuse applications with modeling and cost analysis,” M.S. - Master of Science, Middle East Technical University, 2020.