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Analysis of organic compounds in water by direct adsorption and thermal desorption. [Dissertation]

Description: An instrument was designed and constructed that makes it possible to thermally desorb organic compounds from wet adsorption traps to a gas chromatograph in an efficient and reproducible manner. Based on this device, a method of analyzing organics in water was developed that is rapid, sensitive, and of broader scope than previously published methods. The system was applied to the analysis of compounds with a wide range of volatilities. Temperature and flow parameters were investigated and specif… more
Date: March 1, 1980
Creator: Ryan, J.P. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Survey of LWR environmental control technology performance and cost

Description: This study attempts to establish a ranking for species that are routinely released to the environment for a projected nuclear power growth scenario. Unlike comparisons made to existing standards, which are subject to frequent revision, the ranking of releases can be used to form a more logical basis for identifying the areas where further development of control technology could be required. This report describes projections of releases for several fuel cycle scenarios, identifies areas where al… more
Date: March 1, 1980
Creator: Heeb, C. M.; Aaberg, R. L.; Cole, B. M.; Engel, R. L.; Kennedy, W. E., Jr. & Lewallen, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Refining of fossil resin flotation concentrate from Western coal. Ninth quarterly report, January 1--March 31, 1995

Description: Heptane showed a consistently higher extraction than hexane even through heptane contains only one more methylene group in its molecular structure. However economic factors must also be considered in the overall evaluation of the process. In this regard a simple economic evaluation was carried out taking into consideration the operating costs for the resin concentrate refining process. First of all, the price of industrial grade heptane is about the same as hexane. Because the process operates … more
Date: March 31, 1995
Creator: Jensen, G. F. & Miller, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

In situ measurement of volatile organic compounds in groundwater by methods coupled to the cone penetrometer

Description: The objective of this investigation is to interface an in situ, on-line sparging system with a cone penetrometer to provide direct analysis of volatile organic compounds (VOCS) in groundwater by on-site analysis. Transfer line materials (15 m {times} 0.160--0.216 cm ID) composed of stainless steel, nickel, aluminum and Teflon{reg_sign}PFA, PTFE, and FEP were evaluated for their ability to quantitatively transfer chloroform, 1,1,1-trichloroethane, carbon tetrachloride, tetrachloroethylene, n-hex… more
Date: March 1, 1995
Creator: Doskey, P. V.; Aldstadt, J. H.; Kuo, J. M.; Costanza, M. S. & Erickson, M. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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