Results 31 to 40 of about 6,723 (257)

Impact of Booster Chlorination on Chlorine Decay and THM Production: Simulated Analysis

Journal of Environmental Engineering, 2009
The effect of conventional and booster chlorination on chlorine residuals and trihalomethane (THM) formation in drinking water distribution systems was modeled using the EPANET hydraulic modeling software. The model results suggest that booster chlorination may allow utilities to meet disinfection goals better by carrying chlorine residuals to remote ...
Brian Carrico, Philip C. Singer
openaire   +2 more sources

Experimental appraisal and numerical modelling of chlorine demand and decay in a typical drinking water distribution network in South Africa

Ecotoxicology and Environmental Safety
Safe drinking water requires sound monitoring and maintenance of residual chlorine within drinking water distribution networks (DWDNs) to suppress possible microbial regrowth.
Donald Maphanga, Mapula Lucey Moropeng, Vhahangwele Masindi, Vhahangwele Akinwekomi, Spyros Foteinis   +4 more
doaj   +1 more source

Decay process of free residual chlorine concentration affected by travel time in water distribution systems

Revista Ambiente & Água, 2022
Chlorination is the most widely used method for disinfecting water for human consumption. While the chlorinated water travels through a distribution system, the concentration of free residual chlorine (FRC) declines depending on the natural water ...
Luciano de Oliveira, Diana Rosa dos Reis, Nora Katia Saavedra del Aguila Hoffmann   +2 more
doaj   +1 more source

Effectiveness of emergency water treatment practices in refugee camps in South Sudan

Bulletin of the World Health Organization, 2015
Objective To investigate the concentration of residual chlorine in drinking water supplies in refugee camps, South Sudan, March-April 2013.Methods For each of three refugee camps, we measured physical and chemical characteristics of water supplies at ...
Syed Imran Ali, Syed Saad Ali, Jean-Francois Fesselet   +2 more
doaj   +1 more source

A Mathematical Model for Variable Chlorine Decay Rates in Water Distribution Systems

Modelling and Simulation in Engineering, 2019
A model for relating the time-dependent variable rate of reaction to the decay of chlorine residual in water is developed based on the initial chlorine dose, molar concentrations of reactants, and the rate constant itself.
Ababu T. Tiruneh, Tesfamariam Y. Debessai, Gabriel C. Bwembya, Stanley J. Nkambule   +3 more
doaj   +1 more source

Calibration of water quality model for distribution networks using genetic algorithm, particle swarm optimization, and hybrid methods

MethodsX, 2019
Chlorine reacts with both organic and inorganic matters in water. That is why water quality modeling has received great attention in recent years. The serious issue in municipal water quality modeling is gathering the essential input parameters of the ...
Roya Peirovi Minaee, Mojtaba Afsharnia, Alireza Moghaddam, Ali Asghar Ebrahimi, Mohsen Askarishahi, Mehdi Mokhtari   +5 more
doaj   +1 more source

PANoptosis in the pathogenesis of myelodysplastic syndromes

Molecular Oncology, EarlyView.
PANoptosis, a combination of three types of programmed cell death, is mediated by a large protein complex called a PANoptosome. In healthy bone marrow hematopoietic cells, PANoptosis is restricted by inhibitory signaling. In MDS, bone marrow cells become sensitive to the PANoptotic stimuli due to the aberrant inactivation of inhibitory signaling or ...
Rohit Thalla, Jyoti Lamichhane, Cameron Lewis, Peter Breslin, Jiwang Zhang   +4 more
wiley   +1 more source

Chlorine Decay Simulation in Real Water Distribution System Using Epanet Program

Annals of West University of Timisoara: Physics, 2023
Deterioration of treated drinking water intended for consumption during distribution may be due to physical, chemical or microbiological changes that occur in the water.
Malika Mekki, Hassiba Bouabdesselam, Radouane Laib, Nabil Beloufa, Samir Bekheira, Trari Mohamed   +5 more
doaj   +1 more source

Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi, Katharine Lee, Kerry C. Nix, Miguel Menchaca, Xiwei Shé, Lorelei Santa Maria, Wei Wu, Zihuai He, Fiona M. Baumer   +8 more
wiley   +1 more source

Analysis of water quality characteristic for water distribution systems

Journal of Water Reuse and Desalination, 2019
Since governments all over the world are paying more attention to water quality in water distribution systems (WDS), a method based on mass balance and first-order chlorine decay model was proposed to assess the efficiency of WDS involving water quality (
Yumin Wang, Guangcan Zhu, Zhonglian Yang
doaj   +1 more source