Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Robert D Cody"'
Publikováno v:
Cement and Concrete Research. 35:332-343
Some Iowa highway concrete constructed of coarse carbonate aggregate exhibits premature deterioration, which is, in part, caused by the growth of secondary minerals, including ettringite. Petrographic scanning electron microscope (SEM) and energy-dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91d06be5d18784f9e1bad6ab25cd9bd2
https://doi.org/10.1016/j.cemconres.2004.05.029
https://doi.org/10.1016/j.cemconres.2004.05.029
Publikováno v:
Geosciences Journal. 8:319-323
The purpose of this research was to evaluate the effect of mixed surfactant solution for removal of perchlorethylene (PCE) in sandy soil. Ten different surfactant solutions were used in column studies. Mixed surfactant solutions (anionic and nonionic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a57ddf9b42951d376e182dae31847f4
https://doi.org/10.1007/bf02910251
https://doi.org/10.1007/bf02910251
Publikováno v:
Environmental and Engineering Geoscience. 9:313-326
Many researchers have proposed that secondary or delayed ettringite is responsible for serious, premature deterioration of concrete highways. The current research project was designed to determine experimentally if secondary ettringite formation in c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a215692df5683083d7ecc5db6762842
https://doi.org/10.2113/9.4.313
https://doi.org/10.2113/9.4.313
Publikováno v:
Environmental and Engineering Geoscience. 8:137-145
Iowa highway concretes containing reactive dolomite, (CaMg) 2 CO 3 , aggregate, composed of fine-grained, microporous dolomite, sometimes have service lives of less than 10 years. This premature deterioration may, in part, be caused by expansive forc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a790bc2089d3bcfafd3e1a05a9c32f9
https://doi.org/10.2113/gseegeosci.8.2.137
https://doi.org/10.2113/gseegeosci.8.2.137
Publikováno v:
Separation and Purification Technology. 27:77-82
As a part of the study on the surfactant-aided remediation of organic contaminants, solvent extraction was investigated to determine its efficiency for used surfactant recycling. The experiments used a glass column 70 cm height with an internal diame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b98c83bb6dc6c93ef76f7fc3cabc8b27
https://doi.org/10.1016/s1383-5866(01)00159-9
https://doi.org/10.1016/s1383-5866(01)00159-9
Publikováno v:
Environment International, Vol 27, Iss 8, Pp 681-688 (2002)
Surfactants may be used in remediation of subsoil and aquifer contaminated with hydrophobic compounds. The objectives of this study were to examine the effect of soil texture on hydrophobic organic contaminant (HOC; toluene, or 1,2,4-trichlorobenzene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dcf71ef0e8c18f851536676eae61259d
https://doi.org/10.1016/s0160-4120(01)00130-1
https://doi.org/10.1016/s0160-4120(01)00130-1
Publikováno v:
Canadian Geotechnical Journal. 38:1329-1334
The effectiveness of four food-grade and two industrial surfactants to remove toluene or 1,2,4-trichlorobenzene added to an Iowa soil was evaluated in batch and column experiments. One of the anionic food-grade surfactants, disodium n-hexadecyl diphe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3ee0186cb37757d293803caf232638a
https://doi.org/10.1139/t01-044
https://doi.org/10.1139/t01-044
Autor:
Dal-Heui Lee, Robert D. Cody
Publikováno v:
Geosciences Journal. 5:287-291
Remediation techniques using surfactants to flush hydrophobic organic contaminants from soils have recently been investigated. However, less attention has been given to evaluating the effects of surfactants on the hydraulic properties of porous media
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a273b61b8b12fb1358993bce707096e5
https://doi.org/10.1007/bf02912699
https://doi.org/10.1007/bf02912699
Autor:
Robert D. Cody, Dal-Heui Lee
Publikováno v:
Geosciences Journal. 5:281-286
Recently, extensive research on soil and groundwater remediation has demonstrated surfactant (surface active agents) flushing to be a viable alternative for improving the efficiency of pump-and-treat remediation. Column tests were carried out to exam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5876da3f956526782e330eda0b8fc1c6
https://doi.org/10.1007/bf02912698
https://doi.org/10.1007/bf02912698
Publikováno v:
Groundwater Monitoring & Remediation. 21:49-57
The primary goal of this study was to develop a suitable experimental and laboratory methodology for investigating the efficiency of surfactants in removing hydrophobic contaminants from sand and the efficient recovery of used surfactant solutions fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74cc12c44077215206def315d51461ef
https://doi.org/10.1111/j.1745-6592.2001.tb00630.x
https://doi.org/10.1111/j.1745-6592.2001.tb00630.x