Zobrazeno 1 - 10
of 10
pro vyhledávání: '"J. D. Istok"'
Publikováno v:
Soil Science. 165:505-515
Nitrate contamination of groundwater aquifers from agricultural fertilization is of growing concern. It is generally assumed that little biological activity occurs in the vadose zone and that NO 3 - moves through this zone unimpeded. Various N fracti
Publikováno v:
Ground Water. 37:581-588
The objective of this study was to evaluate the ability of the single-well, "push-pull" test to characterize the enhanced solubilization of trichloroethene (TCE) by a hexadecyl diphenyl oxide disulfonate (DOWFAX) surfactant. Batch solubilization expe
Publikováno v:
Water Resources Research. 29:3201-3208
An analytical solution is derived for the advection-dispersion equation with rate-limited desorption and first-order decay, using an eigenfunction integral equations method. The model equations represent one-dimensional solute transport in a homogene
Publikováno v:
Environmental sciencetechnology. 44(3)
Bioaugmentation to enhance the rate and extent of reductive dechlorination of chlorinated ethenes was investigated in intermediate ( approximately 1 m) scale physical aquifer models (PAMs) designed to simulate the groundwater flow field near an injec
Publikováno v:
Environmental sciencetechnology. 37(17)
A method for estimating in situ transformation rates of sorbing solutes in groundwater is presented. The method utilizes a novel data processing technique called "forced mass balance" (FMB) to remove the effects of transport processes from reactant a
Autor:
Mark D Williams, Vincent R Vermeul, Martinus Oostrom, John C Evans, Jonathan S Fruchter, J D Istok, M D Humphrey, David C Lanigan, James E Szecsody, Mark D White, Thomas W Wietsma, Charles R Cole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9e2c7b7445cfef86784f8a47e7a1de1
https://doi.org/10.2172/15002681
https://doi.org/10.2172/15002681
Autor:
J. D. Istok, Jennifer A. Field
'Surfactant enhanced DNAPL recovery involves the use of injected surfactants to increase the solubility and/or mobility of DNAPL in the subsurface to reduce the time and cost required for site remediation. The successful design of a surfactant enhanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::669201ba018385b55cbbe056fb5a145c
https://doi.org/10.2172/13616
https://doi.org/10.2172/13616
Publikováno v:
Transactions of the ASAE. 29:0730-0734
Autor:
L. Boersma, J. D. Istok
Publikováno v:
Soil Science Society of America Journal. 50:752-758
Autor:
M. E. Harward, J. D. Istok
Publikováno v:
Soil Science Society of America Journal. 46:1106-1108
X-ray diffraction (XRD), differential thermal analysis (DTA), and transmission electron microscopy (TEM) were used to characterize the phyllosilicates in a catena of soils derived from serpentinite in southwestern Oregon. Serpentine (variety chrysoti