Results 11 to 20 of about 7,802 (287)

Relationship between chlorine decay and nanobubble application in secondary treated wastewater

Water Science and Technology
There has been numerous research on the uses of treated wastewater that needs chlorine disinfection, but none have looked at the impacts of injecting nanobubbles (NBs) on the decomposition of residual chlorine.
Ahmed Khaled Abdella Ahmed, Moussa Shalaby, Osama Negim, Talaat Abdel-Wahed   +3 more
doaj   +2 more sources

Bulk Water Microbes Could Accelerate Chlorine Decay at Low Chlorine Concentrations

Water
Using a laboratory-scale system, consisting of a primary disinfection tank (PDT) and three intermittently mixed reactors (R1–R3) in series, bulk water and biofilm contributions to chlorine decay were quantified. The reactors (surface-to-volume ratio: 23.7 m−1; retention time in each reactor: 42.6 ± 1.18 h) were fed with plant-filtered water (PFW ...
Mohamed Fawaz Fawzer, George Kastl, K. C. Bal Krishna, Ian Fisher, Arumugam Sathasivan   +4 more
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Modeling Chlorine Decay in Drinking Water Distribution Systems using Aquasim [PDF]

Chemical Engineering Transactions, 2017
The main purpose of drinking water distribution systems or networks is to supply water of impeccable quality to consumers according to their demand. Problems relating to declining water quality in natural water bodies have been on the increase around the
V. Madzivhandila, E.M.N. Chirwa
doaj   +2 more sources

Monitoring Residual Chlorine Decay and Coliform Contamination in Water Distribution Network of Kampala, Uganda

Journal of Applied Sciences and Environmental Management, 2011
The study was undertaken to examine water quality in the distribution network of Kampala City by assessing five storage reservoirs and four consumer taps.
J Ecura, J Okot-Okumu, TO Okurut
doaj   +3 more sources

Residual Chlorine Modeling Sensitivity to Different Decay Models in Optimized and Non-Optimized Water Distribution Networks

Engineering Proceedings
Water distribution networks (WDNs) are designed to comply with hydraulic and water quality parameters for appropriate operation. Methodologies for WDN optimization have been developed to achieve minimum cost designs, adhering to hydraulic conditions. The
Sergio Serrano, Laura González, Valeria Rodríguez, Juan Saldarriaga   +3 more
doaj   +2 more sources

Application and Comparison of Two Chlorine Decay Models for Predicting Bulk Chlorine Residuals

Periodica Polytechnica Civil Engineering, 2016
In this study, the factors that leading to loss of chlorine residual in water distribution systems were investigated. A series of experiments performed on real water samples collected from effluent of water treatment plant before chlorination. The results showed that bulk chlorine decay rate varied significantly with the initial chlorine concentration ...
Sonia Al Heboos, István Licskó
openaire   +3 more sources

SOME ASPECTS REGARING CHLORINE DECAY IN WATER DISTRIBUTION NETWORKS [PDF]

Aerul şi Apa: Componente ale Mediului, 2011
A major objective of drinking water treatment is to provide microbiologically safe drinking water. The combination of conventional drinking water treatment and disinfection has proved to be one of the major public health advances in modern times.
LIANA IOANA VUŢĂ, GABRIELA ELENA DUMITRAN   +1 more
doaj   +1 more source

Decay of Free Residual Chlorine in Wells Water of Northern Brazil

, 2021
The concentration of chlorine in water declines as it reacts with various substances, causing decay of the residual free chlorine until its total consumption.
Wanderley Rodrigues Bastos, Caetano Chang Dórea, Dorea, Caetano C., Tatiana Lemos da Silva Machado, Taise Ferreira Vargas, Baía, Célia Ceolin, Machado, Tatiana Lemos da Silva, Célia Ceolin Baía, Vargas, Taise Ferreira, Bastos, Wanderly Rodrigues   +9 more
core   +3 more sources

Application of Computational Fluid Dynamics in Chlorine-Dynamics Modeling of In-Situ Chlorination Systems for Cooling Systems

Applied Sciences, 2020
Chlorination is the preferred method to control biofouling in a power plant cooling system due to its comparative effectiveness and low cost. If a power plant is located in a coastal area, chlorine can be electrochemically generated in-situ using ...
Jongchan Yi, Jonghun Lee, Mohd Amiruddin Fikri, Byoung-In Sang, Hyunook Kim   +4 more
doaj   +1 more source

Modeling Chlorine Decay in Surface Water [PDF]

Journal of Environmental Informatics, 2003
Chlorination is the most widely practiced form of disinfection in the US. However, there is concern that the disinfection by-products (DBPs) formed during chlorination might be carcinogenic. Because of this increasing concern in water supply systems, there is a need for models that can be used to predict chlorine residuals and optimize the disinfection
openaire   +1 more source