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Showing 1 to 20 of 56 for “"Chlorine Dioxide"”.
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Utilization of chlorine dioxide gas in food packaging application
<bold>UTILIZATION OF CHLORINE DIOXIDE GAS IN FOOD PACKAGING APPLICATION</bold>BySiriyupa NetramaiChlorine dioxide (ClO<sub>2</sub>) in its gaseous form has been utilized in numerous studies for vapor-phase decontamination, both in treating the produces before packaging, and sanitizing the products …
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Chlorine dioxide and by-products in water distribution systems
Chlorine dioxide is used as both a pre-oxidant and/or a post-disinfectant in several water treatment plants in the United States. Chlorine dioxide is associated with its byproducts chlorite and chlorate. Chlorine dioxide, chlorine, chlorite and chlorate were sampled in four distribution systems …
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Comparative Analytical Methods for the Measurment of Chlorine Dioxide
… methods used for the analysis of low-level Chlorine Dioxide (ClO2) concentrations in drinking water were evaluated for accuracy and precision and ranked according to cost, efficiency and ease of the methods under several conditions that might be encountered at water treatment plants. The …
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The removal of phenols from oily wastewater by chlorine dioxide
… produced by petroleum and canning industries. Chlorine dioxide was used for the removal of phenolic compounds from these oily wastewaters. Most of phenolic compounds can be destroyed by chlorine dioxide within 15 minutes if CI02-to-phenol ratios of higher than 5.0 are provided. Factors such as …
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Reduction of odors associated with chlorine dioxide applications to drinking water
Chlorine dioxide has been used in drinking water treatment for the reduction of trihalomethanes and tastes-and-odors. Recently, chlorine dioxide was implicated as the source of offensive "cat-urine-like" and "kerosene-like" odors in drinking water. The purpose of this project was to determine the …
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Development of a Chlorine Dioxide Gas Concentration Monitoring Unit and Kinetic Analysis of the Effect of Chlorine Dioxide Treatment on Color and Microbial Content Change of Spinach
Analytical methods for measuring chlorine dioxide concentration in solution have been extensively researched and documented in literature. Much less common, are the techniques for measuring ClO2 in a gaseous medium, particularly when the measurement is needed to be made continuously in real time. …
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Chlorine dioxide impacts on microcystis aeruginosa cell stress, growth and microcystin production
… increased production of cyanotoxins.;Here, chlorine dioxide (ClO2) was tested to inhibit a toxin-producing strain of Microcystis aeruginosa. Through a series of experiments, ClO2 was exposed to M. aeruginosa, and the production of microcystin was monitored. The first experiment, batches of …
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Oxidation of trihalomethane-precursors and manganese(II) by chlorine dioxide and permanganate
The objectives were to evaluate permanganate and chlorine dioxide as preoxidants both when they were dosed individually and when they were dosed together, for their abilities to improve water treatment plant performance. The specific goals were to determine the effect of the preoxidant conditions …
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Treatment of algae-induced tastes and odors by chlorine, chlorine dioxide and permanganate
Chlorine (Cl₂(sq»' chlorine dioxide (ClO₂ ) and potassium permanganate (KMnO₄) were evaluated as oxidants for the removal of grassy and cucumber odors associated with the pure compounds, cis-3-hexenol and trans-2, cis-6-nonadienal, respectively, and for the removal of fishy odors associated with a …
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Chlorine dioxide photochemistry in solution: time-resolved resonance Raman and femtosecond pump-probe studies
The solution-phase reaction dynamics of chlorine dioxide (OClO) are studied using time-resolved resonance Raman (TRRR) and femtosecond pump-probe (FPP) spectroscopy. OClO photochemistry is investigated in a variety of solvents in order to ascertain the influence of environment on the …
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Chlorine dioxide by-products in drinking water and their control by powdered activated carbon
The concentrations of chlorine dioxide (CI02), chlorine, chlorite (CIO2), and chlorate (CI03) were evaluated following pretreatment of raw water by CI02 at water treatment plants in New Castle, Pennsylvania; Charleston, West Virginia; Skagit, Washington; and Columbus, Georgia. Chlorite and chlorate …
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Effect of the water disinfectant chlorine dioxide on the integrity of a reverse osmosis membrane
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Seth Robbins (robbins.sd@gmail.com) on 2014-05-30T17:10:15Z Item is restricted until 2016-05-30T17:09:03Z
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Destruction of algae-produced taste-and-odor compounds by chlorine, potassium permanganate, and chlorine dioxide
… was to determine the effect of three oxidants - chlorine, potassium permanganate, and chlorine dioxide - on solutions of pure odorous as well as nonodorous compounds and algal extracts containing a mixture of odor-related compounds. Oxidant dosages used were in the ranges expected during water …
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Synergy of Alum and Chlorine Dioxide for Curbing Disinfection Byproduct Formation Potential at Central Arkansas Water
… has begun retrofitting their two plants to use chlorine dioxide as an alternative primary disinfectant followed by free chlorine secondary disinfection in the distribution system. In this study, fluorescence parallel factor (PARAFAC) analysis was combined with free chlorine simulated …
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Water Quality Impacts of Pure Chlorine Dioxide Pretreatment at the Roanoke County (Virginia) Water Treatment Plant
Chlorine dioxide (ClO₂) was included in the Spring Hollow Water Treatment Plant (Roanoke County, Virginia) to oxidize manganese and iron, prevent tastes and odors, and avoid the formation of excessive halogenated disinfection by-products. A state-of-the-art, gas:solid ClO₂ generation system …
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A comparison of antichlors used in scrubbing chlorine and chlorine dioxide from bleach plant vent gases
A project was conducted to determine the relative effectiveness of several antichlors in regards to their Cl₂ and ClO₂ gaseous "scrubbing" capacity. Both a pilot study as well as full scale trials were completed. Work was done on a bleach plant-packed tower scrubber system at a kraft pulp and paper …
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An investigation of the oxidative potential of potassium permanganate and chlorine dioxide during the oxidation of reduced manganese
… manganese (Mn²), manganese oxide (MnO₂(s)), chlorine dioxide (Cl0₂), and potassium permanganate (KMnO₄). Based on these findings, laboratory analyses were performed to determine if these reactions would occur under simulated water treatment plant conditions. In addition, a speciation …
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