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...
Spatial data analysis for monitoring and prediction of selected water quality parameters in reservoirs: Porsuk Dam reservoir case
Yenilmez, Firdes; Aksoy, Ayşegül; Düzgün, H. Şebnem; Department of Environmental Engineering (2014)
In the design of a water quality monitoring network, selection of water quality sampling locations is crucial to adequately represent the water quality of the water body when high costs of analyses and field work are taken into account. In this study, a new approach was proposed to identify the representative water quality sampling locations in reservoirs and lakes using geostatistical tools for estimation of spatial distribution of selected water quality parameters. To do so, kernel density estimation (KDE...
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...
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. ...
Design, synthesis and electropolymerization of a new chemiluminescent terthienyl system
Atılgan, Nurdan; Önal, Ahmet Muhtar; Department of Chemistry (2008)
A novel monomer, possessing chemiluminescence properties, 5,7-di-ethylenedioxythiophen-2-yl-2,3-dihydro-thieno[3,4-d]pyridazine-1,4-dione (ETE-Lum) was synthesized. Chemiluminescence properties of ETE-Lum were investigated in alkaline water solution in the presence of H2O2 and this reaction was catalyzed by Fe+3 ion and blood. This study submits a new opportunity to investigate forensic and analytical application instead of 5-amino-2,3-dihydro-1,4-phthalazine-dione (luminol). Response of other metalic catio...
Citation Formats
O. N. Özdemir, “Simulation of chlorine decay in water supply networks.,” Ph.D. - Doctoral Program, Middle East Technical University, 1997.