Method of manipulating the chemical properties of water to improve the effectiveness of a desired chemical process
Abstract
The method of the present invention is adapted to manipulate the chemical properties of water in order to improve the effectiveness of a desired chemical process. The method involves heating the water in the vessel to subcritical temperatures between 100.degree. to 374.degree. C. while maintaining sufficient pressure to the water to maintain the water in the liquid state. Various physiochemical properties of the water can be manipulated including polarity, solute solubility, surface tension, viscosity, and the disassociation constant. The method of the present invention has various uses including extracting organics from solids and semisolids such as soil, selectively extracting desired organics from nonaqueous liquids, selectively separating organics using sorbent phases, enhancing reactions by controlling the disassociation constant of water, cleaning waste water, and removing organics from water using activated carbon or other suitable sorbents.
- Inventors:
-
- Grand Forks, ND
- Greenville, NC
- Issue Date:
- Research Org.:
- Univ. of North Dakota, Grand Forks, ND (United States)
- OSTI Identifier:
- 872747
- Patent Number(s):
- 6001256
- Assignee:
- Energy & Environmental Research Center (Grand Forks, ND)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- DOE Contract Number:
- FC21-93MC30097
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; manipulating; chemical; properties; water; improve; effectiveness; desired; process; adapted; manipulate; involves; heating; vessel; subcritical; temperatures; 100; degree; 374; maintaining; sufficient; pressure; maintain; liquid; various; physiochemical; manipulated; including; polarity; solute; solubility; surface; tension; viscosity; disassociation; constant; extracting; organics; solids; semisolids; soil; selectively; nonaqueous; liquids; separating; sorbent; phases; enhancing; reactions; controlling; cleaning; waste; removing; activated; carbon; suitable; sorbents; selectively extracting; selectively separating; sorbent phase; waste water; activated carbon; critical temperature; method involves; surface tension; aqueous liquid; chemical properties; sufficient pressure; chemical process; removing organic; maintaining sufficient; desired chemical; aqueous liquids; selectively extract; separating organic; method involve; involves heating; suitable sorbent; /210/
Citation Formats
Hawthorne, Steven B, Miller, David J, Yang, Yu, and Lagadec, Arnaud Jean-Marie. Method of manipulating the chemical properties of water to improve the effectiveness of a desired chemical process. United States: N. p., 1999.
Web.
Hawthorne, Steven B, Miller, David J, Yang, Yu, & Lagadec, Arnaud Jean-Marie. Method of manipulating the chemical properties of water to improve the effectiveness of a desired chemical process. United States.
Hawthorne, Steven B, Miller, David J, Yang, Yu, and Lagadec, Arnaud Jean-Marie. Fri .
"Method of manipulating the chemical properties of water to improve the effectiveness of a desired chemical process". United States. https://www.osti.gov/servlets/purl/872747.
@article{osti_872747,
title = {Method of manipulating the chemical properties of water to improve the effectiveness of a desired chemical process},
author = {Hawthorne, Steven B and Miller, David J and Yang, Yu and Lagadec, Arnaud Jean-Marie},
abstractNote = {The method of the present invention is adapted to manipulate the chemical properties of water in order to improve the effectiveness of a desired chemical process. The method involves heating the water in the vessel to subcritical temperatures between 100.degree. to 374.degree. C. while maintaining sufficient pressure to the water to maintain the water in the liquid state. Various physiochemical properties of the water can be manipulated including polarity, solute solubility, surface tension, viscosity, and the disassociation constant. The method of the present invention has various uses including extracting organics from solids and semisolids such as soil, selectively extracting desired organics from nonaqueous liquids, selectively separating organics using sorbent phases, enhancing reactions by controlling the disassociation constant of water, cleaning waste water, and removing organics from water using activated carbon or other suitable sorbents.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}
Works referenced in this record:
Reversed-Phase Chromatography
book, January 1980
- Melander, Wayne R.; Horváth, Csaba
- High-Performance Liquid Chromatography
Subcritical Water Extraction of Polychlorinated Biphenyls from Soil and Sediment
journal, December 1995
- Yang, Yu.; Bowadt, Soren.; Hawthorne, Steven B.
- Analytical Chemistry, Vol. 67, Issue 24
Coupled Subcritical Water Extraction with Solid-Phase Microextraction for Determining Semivolatile Organics in Environmental Solids
journal, January 1996
- Hageman, Kimberly J.; Mazeas, Laurent; Grabanski, Carol B.
- Analytical Chemistry, Vol. 68, Issue 22
Subcritical Water Chromatography with Flame Ionization Detection
journal, February 1997
- Miller, David J.; Hawthorne, Steven B.
- Analytical Chemistry, Vol. 69, Issue 4
Extraction of Organic Pollutants from Environmental Solids with Sub- and Supercritical Water
journal, September 1994
- Hawthorne, Steven B.; Yang, Yu.; Miller, David J.
- Analytical Chemistry, Vol. 66, Issue 18
Class-Selective Extraction of Polar, Moderately Polar, and Nonpolar Organics from Hydrocarbon Wastes Using Subcritical Water
journal, February 1997
- Yang, Yu; Hawthorne, Steven B.; Miller, David J.
- Environmental Science & Technology, Vol. 31, Issue 2