Redox potential measurements for determining the disinfecting power of chlorinated water.
TLDR
The redox potential was found to be better correlated with the disinfecting property of the water than was the amount of available chlorine.Abstract:
The kill of Escherichia coli within 3 min. was studied in chlorine-demand-free water using sodium hypochlorite, monochloramine, dichloramine, halazone, chloramine T, cyanuric acid + sodium hypochlorite and cyanuric acid + monochloramine. The redox potential and the available chlorine were measured. The redox potential was found to be better correlated with the disinfecting property of the water than was the amount of available chlorine. For individual pure chlorine compounds, the measuring of available chlorine showed in general a somewhat better correlation with reduction of the bacteria than the redox potential showed.read more
Citations
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Journal ArticleDOI
Transformation of the antibacterial agent sulfamethoxazole in reactions with chlorine: kinetics, mechanisms, and pathways.
Michael C. Dodd,Ching-Hua Huang +1 more
TL;DR: Experiments conducted in wastewater and drinking water matrixes appeared to validate measured reaction kinetics for SMX, indicating that SMX and likely other sulfonamide antibacterials should generally undergo substantial transformation during disinfection of such waters with free chlorine residuals.
Patent
Air and water purification using continuous breakpoint halogenation and peroxygenation
TL;DR: In this article, a process for optimizing the rate of oxidation using a combination of halogen, eg chlorine donors and peroxygen, eg potassium monopersulfate, was proposed.
Book ChapterDOI
The redox potential: Its use and control in biotechnology
TL;DR: This review describes the theory for and the measurement of the redox potential and the use and control ofredox potential in biotechnology.
Patent
System for optimized control of multiple oxidizer feedstreams
TL;DR: In this article, a method and apparatus for controlling and optimizing the feed of two or more oxidizers to an aqueous stream, thereby providing a synergistic effect is presented.
References
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Journal ArticleDOI
The Determination of Free and Combined Chlorine in Water by the Use of Diethyl-p-phenylene Diamine
TL;DR: In this paper, the diethyl-pphenylene diamine (DPD) is used to give a red color to the free chlorine and the subsequent addition of a small amount of potassium iodide (KI) immediately causes monochloramine to produce some color.
Journal ArticleDOI
An evaluation of the methods for determining residual chlorine in water. Part I. Free chlorine
Journal ArticleDOI