The hypothesis of this research was that under some conditions, monochloramine cometabolism causes disinfectant loss in distribution systems, and is a defense mechanism that allows nitrifiers to persist in pipe-wall biofilm. The research objectives were to (1) define the relative significance of monochloramine cometabolism in causing disinfectant loss over the typical range of conditions encoun...

Analysis and design of siphonic roof drainage systems are usually performed with specific software developed by the system’s manufacturers. An experimental study was carried out to verify if a general for analysis hydraulic pressurized pipe networks can be used analyze system. A test model built tests were conducted compare prototype results simulation runs in EPANET. new EPANET data overcome l...

Water distribution systems are designed to adequately satisfy the water requirement for domestic, commercial industrial and firefighting purpose. A spatial database of (WDS) Hayin-Banki was created in a Geographic Information System (GIS) environment (ArcGIS), drawing inputs data from supply demand. Environmental Protection Agency Network (EPANET, 2.0) used analyze WDS explore its reliability c...

This work contributes a modeling framework to characterize the effect of cyber-physical attacks (CPAs) on the hydraulic behavior of water distribution systems. The framework consists of an attack model and a MATLAB toolbox named epanetCPA. The former identifies the components of the cyber infrastructure (e.g., sensors or programmable logic controllers) that are potentially vulnerable to attacks...