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Final LDRD report :ultraviolet water purification systems for rural environments and mobile applications.

Description: We present the results of a one year LDRD program that has focused on evaluating the use of newly developed deep ultraviolet LEDs in water purification. We describe our development efforts that have produced an LED-based water exposure set-up and enumerate the advances that have been made in deep UV LED performance throughout the project. The results of E. coli inactivation with 270-295 nm LEDs are presented along with an assessment of the potential for applying deep ultraviolet LED-based water… more
Date: November 1, 2005
Creator: Banas, Michael Anthony; Crawford, Mary Hagerott; Ruby, Douglas Scott; Ross, Michael P.; Nelson, Jeffrey Scott; Allerman, Andrew Alan et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Purification of Argon, Helium and Xenon : a Bibliography

Description: This bibliography contains 145 references on the technology and apparatus used in the purification of argon, helium and xenon, and on the analysis for water, carbon monoxide, hydrogen, nitrogen, and oxygen, in the purification process. The references are arranged in four classifications: general, argon, helium, and xenon. Within each classification, the references are arranged in chronological order.
Date: September 16, 1956
Creator: Cernak, Elizabeth A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Forward osmosis :a new approach to water purification and desalination.

Description: Fresh, potable water is an essential human need and thus looming water shortages threaten the world's peace and prosperity. Waste water, brackish water, and seawater have great potential to fill the coming requirements. Unfortunately, the ability to exploit these resources is currently limited in many parts of the world by both the cost of the energy and the investment in equipment required for purification/desalination. Forward (or direct) osmosis is an emerging process for dewatering aqueous … more
Date: July 1, 2006
Creator: Miller, James Edward & Evans, Lindsey R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recovery of D2O and UO2F2 by Distillation

Description: Technical report describing the purification and separation by distillation of UO2F2 from D2O. In the experiment which is discussed 2,129.6 lbs of UO2F2 were dissolved in 6,605 lbs of D2O. The average isotopic purity of the D2O decreased during the distillation from 99.77% to 99.73%. The dissolved impurities were less than those present originally in the heavy water.
Date: October 10, 1945
Creator: Fischer, R. & Wattenberg, Albert, 1917-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Throughput Identification, Purification and Structural Characterization of Water Soluble Protein Complexes in Desulfovibrio vulgaris

Description: Our scheme for the tagless purification of water soluble complexes. 10 g of protein from a crude bacterial extract is first fractionated by ammonium sulfate precipitation and then by a series of chromatographic steps: anion exchange (IEX), hydrophobic interaction (HIC), and finally size exclusion (Gel Filtration). Fractions from the last chromatography step are trypsin digested and peptides labeled with iTRAQ reagents to allow multiplexing and quantitation during mass spectrometric analysis. El… more
Date: May 17, 2010
Creator: Dong,, Ming; Han, Bong-Gyoon; Liu, Hui-Hai; Malik, J.; Geller, Jil; Yang, Li et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Partial Purification and Some Properties of Lipase From Pseudomonas Aeruginosa

Description: Purification of lipase from Pseudomonas aeruginosa (from both a washed cell suspension and crude culture supernatant as the enzyme source) was performed utilizing affinity chromatography. Affinity chromatography was carried out using n-dodecylamine bound to Sepharose 4B. Chromatography of the concentrated crude culture supernatant resulted in a 65 to 95 fold purification with 5.8% recovery. Washed cells collected from a ten hour culture suspended in water also produced enzyme. Activity of the w… more
Date: May 1979
Creator: Morrison, Linda Kay
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Photolytic Ozonation of Organics in Aqueous Solutions

Description: The aim of the investigation described in this work is to gain a better understanding of the processes involved in the oxidation of organic compounds by photolytic ozonation in a laboratory scale reactor. The results and discussions are presented in Chapter III. This chapter contains four parts. In the first part, mass transfer efficiency and the calculation of the mass transfer coefficient, KLa, as well as the ozone decomposition rate constant, KD, are presented and compared with those obtaine… more
Date: May 1980
Creator: Huang, Francis Y.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Zirconium Purification Pilot Plant

Description: This report discusses the process of zirconium purification, providing an alternate method for converting ZrCl4 solution to the oxide in order to free it from small amounts of hafnium impurity that are naturally present.
Date: September 12, 1950
Creator: Lea, D. C.; Aykanian, A. A.; Abbanat, R. G. & Bowman, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Exploiting interfacial water properties for desalination and purification applications.

Description: A molecular-scale interpretation of interfacial processes is often downplayed in the analysis of traditional water treatment methods. However, such an approach is critical for the development of enhanced performance in traditional desalination and water treatments. Water confined between surfaces, within channels, or in pores is ubiquitous in technology and nature. Its physical and chemical properties in such environments are unpredictably different from bulk water. As a result, advances in wat… more
Date: September 1, 2008
Creator: Xu, Hongwu; Varma, Sameer; Nyman, May Devan; Alam, Todd Michael; Thuermer, Konrad; Holland, Gregory P. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of Equipment for the Purification of Mercury by Distillation

Description: Abstract: "An investigation of the mercury salvage program has resulted in the development of an improved high compacity type of distillation apparatus. The still, electrically heated and essentially automatic in its operation, will produce at a rate greater than 75 pounds per hour and develop a product 99.99% pure or better. This still will handle the lowest grade crude of amalgam that can pass through the feed lines and will continue to develop a pure prodcut for comparatively long periods of… more
Date: May 26, 1945
Creator: Lee, J. E. & Susano, C. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Frontiers of interfacial water research :workshop report.

Description: Water is the critical natural resource of the new century. Significant improvements in traditional water treatment processes require novel approaches based on a fundamental understanding of nanoscale and atomic interactions at interfaces between aqueous solution and materials. To better understand these critical issues and to promote an open dialog among leading international experts in water-related specialties, Sandia National Laboratories sponsored a workshop on April 24-26, 2005 in Santa Fe… more
Date: October 1, 2005
Creator: Cygan, Randall Timothy & Greathouse, Jeffery A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced Coal Conversion Process Demonstration. Technical progress report, April 1, 1993--June 30, 1993

Description: This report describes the technical progress made on the Advanced Coal Conversion Process (ACCP) Demonstration Project from April 1, 1993, through June 30, 1993. The ACCP Demonstration Project is a US DOE Clean Coal Technology Project. This project demonstrates an advanced thermal coal drying process coupled with physical cleaning techniques that are designed to upgrade high-moisture, low-rank coals to a high-quality, low-sulfur fuel registered as the SynCoal{reg_sign} process. The coal is proc… more
Date: March 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Coal Conversion Process Demonstration. Technical progress report, January 1, 1993--March 31, 1993

Description: This report describes the technical progress made on the Advanced Coal Conversion Process (ACCP) Demonstration Project from January 1, 1993, through May 31, 1993. The ACCP Demonstration Project is a US DOE Clean Coal Technology Project. This project demonstrates an advanced thermal coal drying process coupled with physical cleaning techniques that are designed to upgrade high-moisture, low-rank coals to a high-quality, low-sulfur fuel registered as the SynCoal{reg_sign} process. The coal is pro… more
Date: March 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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