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2017 | 73 | 92-99
Article title

Analysis of supercritical thermohydrolysis of DNSDS water solution using HPLC

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One of the negative effects of the continuous development of civilization which is observed in recent decades is an increase in the number and variety of pollutants released into the environment. These substances have ecotoxic properties and pose a serious threat to humans and proper functioning of the ecosystem. Their presence in the environment forces the development of new technologies for their disposal. Currently, a huge interest in supercritical fluids as the media for conducting various chemical processes is observed. In a supercritical state, particularly interesting properties, has water which changes radically its solvation properties from ionic to non-ionic type and is a very good solvent for non-polar organic compounds. Accordingly, new methods of using water as a medium for oxidation of waste and toxic organic impurities are searched. One of the latest and very promising method to destroy organic contaminants, using the properties of water which exceeded the critical point, (critical temperature Tcr = 374 °C and critical pressure Pcr = 22.1 MPa) is thermohydrolysis in supercritical water. In this paper an application high-performance liquid chromatography for 4,4'-dinitrostilbene-2,2'-disulfonic acid (DNSDS) thermohydrolysis in environment of supercritical water is presented.
Physical description
  • Faculty of Process and Environmental Engineering, Technical University of Lodz, Wolczanska 175, 90-924 Lodz, Poland
  • Faculty of Process and Environmental Engineering, Technical University of Lodz, Wolczanska 175, 90-924 Lodz, Poland
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