Results 71 to 80 of about 535,335 (186)

Assessment of probable causes of chlorine decay in water distribution systems of Gaborone city, Botswana [PDF]

, 2019
Assessment of probable causes of chlorine decay in water distribution systems of Gaborone city, Botswana Gaborone city water distribution system (GCWDS) is rapidly expanding and has been faced with the major problems of high water losses due to leakage ...
Basupi, Innocent, Parida, Bhagabat P., Odirile, Phillimon T, Nono, Denis, Parida, Bhagabat P, Odirile, Phillimon T.   +5 more
core   +1 more source

Chlorine transport and decay analysis in water distribution systems using hydraulic simulation and physics- and chemistry-informed graph neural networks

Case Studies in Chemical and Environmental Engineering
Maintaining compliant chlorine residuals across water distribution networks is challenging because concentrations evolve under time-varying hydraulics, advective transport, and bulk and wall decay kinetics, while field monitoring is sparse. Physics-based
Mostafa Khodakarami, Víctor R. Vásquez
doaj   +1 more source

Chlorine decay model of North Richmond re-chlorination stations

, 1998
Chlorine decay model of North Richmond re-chlorination ...
Veeriah Jegatheesan (13075539), G Kastl (13734061), I Fisher (13734058)   +2 more
core  

West Cumbria Chlorine Decay Modelling: (194)

, 2018
"In 2022 the water supply for customers within the West Cumbria area, which is situated in the North-West region of England, will change. The existing three individual water sources that supply the area will be abandoned and customers will be supplied by
Rimmer, C., Authors:
core   +1 more source

Evaluation of second order and parallel second order approaches to model temperature variation in chlorine decay modelling

, 2011
All drinking water receives some form of disinfection and a minimum residual should remain at the customer’s tap. Most popular disinfectant of all is chlorine. Chlorine reacts with compounds in water and hence leads to decay.
Sathasivan, Arumugam, Hanieh Aboutalebi, Arumugam Sathasivan, Aboutalebi, Hanieh, Sathasivan, Arumugam (R17016), Kohapei, Ahmad J., Jabari Kohpaei, Ahmad, Ahmad Jabari Kohpaei   +7 more
core   +2 more sources

Chlorine Decay under Steady and Unsteady-state Hydraulic Conditions

Procedia Engineering, 2014
AbstractThis paper describes a simulation framework for the scale-adaptive hydraulic and chlorine decay modelling under steady and unsteady-state flows. Bulk flow and pipe wall reaction coefficients are replaced with steady and unsteady-state reaction coefficients.
Stoianov, Ivan, Aisopou, Angeliki
openaire   +2 more sources

Dynamic coupling between flow perturbations and chlorine decay kinetics in drinking water distribution systems

LHB Hydroscience Journal
Accurate prediction of chlorine residuals is essential for water supply safety. Current mechanistic predictive models for water distribution networks often rely on a limited set of discrete decay coefficients ([Formula: see text]), failing to represent ...
Shuai-Hua Hou, Chao Wang, Feng Xu, Chen Zhou, Zesen Shi   +4 more
doaj   +1 more source

A Kinetic and Mechanismic Study of Plasma-Induced Degradation of Monochloropropionic Acids in Water by Means of Anodic Contact Glow Discharge Electrolysis

International Journal of Polymer Science, 2016
Decomposition of aqueous monochloropropionic acids (MCPAs) was investigated by means of anodic contact glow discharge electrolysis (CGDE). With the decay of MCPAs, the corresponding total organic carbon (TOC) also decreased smoothly.
Haiming Yang, Xiaotong Zhao, Baigang An, Lixiang Li, Shaoyan Wang, Maowei Ju   +5 more
doaj   +1 more source

Study on Residual Chlorine Transport in Receiving Waters from Sewage Treatment under Seasonal Operation

Journal of Water and Environment Technology
In some sewage treatment plants in Japan, treated water with increased ammonia concentration is discharged to supply for the lack of nutrients in the seaweed farms.
Hiroyuki Yamanishi
doaj   +1 more source

Chlorine decay and bacterial inactivation kinetics in drinking water in the tropics

, 1996
The decay of free chlorine (Cl2) and combined chlorine (mostly monochloramine: NH2Cl) and the inactivation of bacteria was examined in Dar es Salaam, Tanzania.
Thøgersen, J., Dahi, E.
core   +1 more source