Simulation of chlorine decay in water supply networks.

Özdemir, Osman N


Evaluation of performance and optimum valve settings for pressure management using forecasted daily demand curves by artificial neural networks
Yıldız, Evren; Merzi, Nuri; Department of Civil Engineering (2011)
For the appropriate operation and correct short term planning, daily demand curve (DDC) of municipal water distribution networks should be forecasted beforehand. For that purpose, artificial neural networks (ANN) is used as a new method. The proposed approach employs already recorded DDCs extracted from the database of ASKI (Ankara Water Authority) SCADA center and related independent parameters such as temperature and relative humidity obtained from DMI (State Meteorological Institute). In this study, a co...
Rehabilitation of water supply systems
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. ...
Development of a membrane based treatment scheme for water recovery from textile effluents
Çapar, Gökşen; Yetiş, Ülkü; Department of Environmental Engineering (2005)
A membrane based treatment scheme was developed for the recovery of the print dyeing wastewaters (PDWs) and the acid dye bath wastewaters (ADBWs) of carpet manufacturing industry. The treatment schemes were developed by selecting the best pre-treatment and treatment processes among the alternatives of chemical precipitation (CP), microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF). The best process train for PDW was CP+NF, where organic matter, color, turbidity and total hardness were removed...
Development of a methodology for identification and control of the chemicals of the greatest concern: Yeşilirmak River Basin case study
Küçük, Elif; Yetiş, Ükü; Department of Environmental Engineering (2018)
The EU Water Framework Directive (WFD) (2000/60/EC) aims to achieve good water status of surface water and groundwaters. For the purpose of evaluating chemical status, the Member States are required to monitor 45 priority substances in water bodies. To ensure good ecological status, the WFD requires the Member States to identify “river basin specific pollutants” and establish the environmental quality standards for these pollutants. In accordance with the WFD, main objectives of this study are to find out t...
Automated calibration of water distribution networks
Apaydın, Öncü; Merzi, Nuri; Department of Civil Engineering (2013)
Water distribution network models are widely used for various purposes such as long-range planning, design, operation and water quality management. Before these models are used for a specific study, they should be calibrated by adjusting model parameters such as pipe roughness values and nodal demands so that models can yield compatible results with site observations (basically, pressure readings). Many methods have been developed to calibrate water distribution networks. In this study, Darwin Calibrator, a...
Citation Formats
O. N. Özdemir, “Simulation of chlorine decay in water supply networks.,” Ph.D. - Doctoral Program, Middle East Technical University, 1997.