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Showing 1 to 10 of 10 for “"Methylisoborneol"”.
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Oxidation of Disinfection Byproducts and Algae-related Odorants by UV/H₂O₂
… byproducts in the presence of geosmin and 2-methylisoborneol, which are earthy-musty odorants that commonly occur in drinking water. UV/H₂O₂ is an expensive advanced oxidation process that is used to successfully control geosmin and 2-methylisoborneol. The aqueous oxidation of odorous …
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Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems.
… and odour compounds, especially geosmin and 2- methylisoborneol is important in the potable water and aquaculture industries. A rapid, robust, sensitive, and cost-effective analysis method using SPE-GCMS has been developed and is capable of detecting both compounds to sub nano gram levels. The …
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Behaviour of trace organics and dissolved organic matter in granular activated carbon filters for drinking water supply
… (T&O) causing compounds such as geosmin and 2-methylisoborneol and reducing the concentration of dissolved organic matter (DOM) which contributes to the formation of disinfection by-products. GAC filters were installed at the Hamilton Drinking Water Treatment Station (HDWTS) in 2006 to address …
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Temperature Effects on Drinking Water Odor Perception
… some, but not all, concentrations of geosmin, 2-methylisoborneol, <i>trans-2,</i> <i>cis-6-</i>nonadienal, n-hexanal, free chlorine, and 1-butanol. Additionally, above 400 ng/L of geosmin, 400 ng/L of MIB, and 100 ng/L the odor intensity was equal to or less than the odor intensity at 600, 600, …
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Analysis of potent odorants in spearmint oils
… 1-hexen-3-one, 3-methyl-2-butene-1-thiol, and 2-methylisoborneol. Forty-six compounds in Native spearmint, Scotch spearmint, and Macho mint oils were quantified using various methods. Nineteen high abundance compounds were quantified using a gas chromatography-flame ionization detector (GC-FID), …
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Identification and characterization of odorous metabolites produced by selected freshwater algae
… the algal cells. Phormidium sp. produced more 2-methylisoborneol (MIB) than geosmin, and the alga retained only a relatively small amount of either compound within the cells. Synura petersenii produced more 2t,4c,7c-decatrienal than 2t,6c-nonadienal, and large fractions of the concentrations …
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Detection, analysis, and photocatalytic destruction of the freshwater taint compound geosmin.
… off-flavour compounds are geosmin (GSM) and 2-methylisoborneol (MIB). These compounds are produced by several varieties of cyanobacteria and actinomycetes as metabolic products and can be detected by humans at concentrations as low as 0.015 mg L-1. Removal of GSM and MIB from potable waters has …
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Determination of Henry's Law Constants of Odorous Contaminants and Their Application to Human Perception
… of moderate water solubility (about 100 mg/L). 2-Methylisoborneol (2-MIB) is a methylated monoterpene alcohol that is produced by actinomycetes and blue-green algae and has a musty odor that is detectable at 4-10 ng/L water. Geosmin, also produced by actinomycetes and blue-green algae, has a …
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The Effect of Natural Organic Matter on UV/H<sub>2</sub>O<sub>2</sub> Treatment and the Effect of UV/H<sub>2</sub>O<sub>2</sub> Treatment on Natural Organic Matter
… metolachlor, methyl tert-butyl ether (MTBE), methylisoborneol, ibuprofen, gemfibrozil, and 17α-ethynylestradiol was evaluated. UV absorbance scans demonstrated changes in NOM from UV/H<sub>2</sub>O<sub>2</sub> that increased under certain NOM conditions. As NOM increased, electrical energy per …
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Mechanisms Of Nanofilter Fouling And Treatment Alternatives For Surface Water Supplies
… affected spore rejection. Geosmin and methylisoborneol have molecular weights of 182 and 168 respectively, and are byproducts of algal blooms, which commonly increase taste and odor as measured by the threshold odor number (TON) in drinking water. Although these molecules are neutral …