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A new approximate solution for chlorine concentration decay in pipes
Water Research, 2008Biswas et al. (1993. A model for chlorine concentration decay in pipes. Water Res. 27(12), 1715-1724) presented an analytical solution of a two-dimensional (2-D) steady-state chlorine transport equation in a pipe under the turbulent condition and employed fractional error function and regression technique to develop an approximate solution.
Hund-Der, Yeh +3 more
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Chemosphere, 2017
This paper presents the effect of preoxidation with ferrate(VI) (FeVIO42-, Fe(VI)) prior to chlorination on chlorine decay and formation of disinfection by-products in filtered raw water from a full-scale drinking water treatment plant. The rate of chlorine decay became significantly faster as the concentration of ferrate(VI) increased.
Cong Li +7 more
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This paper presents the effect of preoxidation with ferrate(VI) (FeVIO42-, Fe(VI)) prior to chlorination on chlorine decay and formation of disinfection by-products in filtered raw water from a full-scale drinking water treatment plant. The rate of chlorine decay became significantly faster as the concentration of ferrate(VI) increased.
Cong Li +7 more
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Modeling and verifying chlorine decay and chloroacetic acid formation in drinking water chlorination
Frontiers of Environmental Science & Engineering in China, 2009This study presents a phenomenological model that can be used by the water professionals to quantify chlorine decay and disinfection byproduct (DBP) formation in water. The kinetic model was developed by introducing the concept of limiting chlorine demand and extending an established reactive species approach.
Wenjun Liu, Shaoying Qi
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Science of The Total Environment, 2022
Booster chlorination was usually employed in water distribution systems with a long hydraulic retention time. The free chlorine decay and disinfection by-products (DBPs) transformation under booster chlorination conditions were investigated within a pilot-scale water distribution system (WDS). Compared with the initial chlorination in water plants, the
Pubin, Liao +4 more
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Booster chlorination was usually employed in water distribution systems with a long hydraulic retention time. The free chlorine decay and disinfection by-products (DBPs) transformation under booster chlorination conditions were investigated within a pilot-scale water distribution system (WDS). Compared with the initial chlorination in water plants, the
Pubin, Liao +4 more
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CXLIV. K-capture in the decay of chlorine 36
The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1955A search for the existence of K-capture in ^(36)C1 has been made using a proportional tube spectrometer with labelled methyl chloride as a gaseous source. A peak which was observed in the beta spectrum corresponded to the K-radiation of sulphur and indicated the presence of K-capture. The branching ratio K/β^- was found to be (l·7±0·1)%.
Drever, R. W. P., Moljk, A.
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Performance of Various Kinetic Models for Chlorine Decay
Journal of Water Resources Planning and Management, 2001A number of computer packages have been developed for modeling chlorine decay in water distribution networks. However, there is uncertainty as to the kinetic model that they should use for the decay mechanism. This paper explores the performance of six different kinetic models for the decay of free chlorine in over 200 bulk water samples from a number ...
Geeta Arora +7 more
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MODELLING CHLORINE DECAY IN DRINKING WATER MAINS
Environmental Engineering and Management Journal, 2008Drinking water treatment plays an important role in maintaining public health. Chlorine is the most often disinfectant used for microbiological protection of water. Required residual chlorine concentration must be in treated water when it leaves treatment plant, to comply with the regulations. The chlorine residual must be 0.5 mg/L at the entrance into
Diana Robescu +2 more
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Wall decay of chlorine in water distribution system
Journal of Water Supply: Research and Technology—AQUA, 2009Chlorination is a widely practised method of disinfection in India. The chlorine consumption in a distribution pipe is due to bulk and wall reactions. The chlorine decay due to wall reactions is particularly significant in old distribution systems with unlined metallic pipes.
G. R. Munavalli +2 more
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Residual chlorine decay in a broad, shallow river
Water Research, 1993Abstract Field investigations into the mixing and decay of discharge plumes containing total residual chlorine (TRC) concentrations of 2.0 mg/l were conducted in the North Saskatchewan River downstream from two water treatment plants in the City of Edmonton, Canada.
G.D. Milne, S.J. Stanley, D.W. Smith
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The Self-Decay Characteristics of Chlorine Dioxide in Water
Advanced Materials Research, 2012In order to learn the ClO2 decay behaviour in tap water, the kinetics of ClO2 decay in pure water was studied. Under the conditions of tap water treatment and keeping away from light, the effects of temperature and pH on ClO2 degradation were investigated.
Xin Jie Li, Dan Nan Jiang, Yue Jun Zhang
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