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pro vyhledávání: '"Ramon G. Lee"'
Autor:
Kevin L. Dixon, Ramon G. Lee
Publikováno v:
Radon, Radium, and Other Radioactivity in Ground Water ISBN: 9781003069836
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef4ea6f56e85cb4df0886be23fbda4ee
https://doi.org/10.1201/9781003069836-25
https://doi.org/10.1201/9781003069836-25
Publikováno v:
Journal - American Water Works Association. 89:111-122
Regeneration of spent granular activated carbon (GAG) can be affected by inorganics that have accumulated by ion exchange on specific GAC sites, precipitation, or adsorption of metal-organic complexes. The authors found iron (Fe) in several spent GAC
Autor:
Ramon G. Lee, David A. Cornwell
Publikováno v:
Journal - American Water Works Association. 86:50-63
Waste streams recycled to the influent of a water treatment plant typically contain contaminants at concentrations that are of concern. These contaminants may include Giardia and Cryptosporidium, trihalomethanes, manganese, and assimilable organic ca
Publikováno v:
Carbon. 32:1285-1301
Thermal regenerations were conducted on a spent granular activated carbon (GAC) that had served in a water treatment plant for about four years and contained 1.8% calcium. Oxidation was conducted in steam, CO2, or steam plus CO2, at 650–950°C. As
Publikováno v:
Journal - American Water Works Association. 85:111-123
Previous research has shown a relationship between corrosion of an iron pipe and the protection of biofilm bacteria from disinfection. It is believed that the corrosion product reacts with chlorine disinfectants and prevents the biocide from penetrat
Publikováno v:
Journal - American Water Works Association. 85:76-89
Thermal regenerations were conducted on a granular activated carbon (GAC) that had become exhausted (spent) in a water treatment plant where it had been in service nearly four years. This GAC contained 2 percent calcium. With this field-loaded calciu
Publikováno v:
Journal - American Water Works Association. 84:85-94
Surface-water treatment plants are required by the Surface Water Treatment Rule to remove viruses and Giardia lamblia cysts or to inactivate them to specific levels. Particle removal data can be used to demonstrate the level of Giardia removal provid
Autor:
Kevin L. Dixon, Ramon G. Lee
Publikováno v:
Journal - American Water Works Association. 83:48-55
Experiments were performed to determine the effect of granular activated carbon (GAC) filtration and sulfur-based reducing agents on chlorite and chlorate ions in water. It is concluded that neither GAC filtration nor sulfur-based reduction is a feas
Publikováno v:
Journal - American Water Works Association. 83:141-148
Spray jet aeration, packed-tower aeration, and multistaged bubble aeration were evaluated for gas bubbles into a column or tank of removal of radon from water. It was found that spray jet aeration was limited to 175 percent water (e.g., diffused aera
Publikováno v:
Journal - American Water Works Association. 82:75-82
This study compared an immunofluorescence (IFA) method for the simultaneous detection of Giardia and Cryptosporidium in water with the zinc sulfate flotation and Lugol's iodine method. The results show that the IFA technique detected approximately 12