Abstract
Thermal treatment of contaminated soil has gained great interest. If biological methods have no sufficient cleaning effect, the soil material must be deposited or incinerated. Thermal treatment of contaminated soil with supercritical water (Tc = 374 °C, Pc = 22.1 MPa), in contrast to incineration, leads to clean soil material without creating nitrogen oxides and sulfur dioxide. Depending on the type of contamination, reaction products are CO2, H2O, inorganic acids and highly volatile hydrocarbons. The process is carried out at elevated pressures (25 MPa) and, compared to incineration, at moderate temperatures (375–600 °C). Residence times are short (< 120 s) and reaction products can be controlled by conditions of state relating to the oxidation (Brunner 1994).
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References
Barner HE, Huang CY, Johnson T, Jacobs G, Martch MA, Killilea WR (1982) Journal of Hazardous Materials 31: 1–17
Brunner G (1993) Verfahren zur Oxidation von organischen und anorganischen Stoffen mit Sauerstoff in wässeriger Umgebung. Patentschrift DE 41 32 915 Cl
Brunner G (1994) Extraction and Destruction of Waste with Supercritical Water. In: Kiran E, Levelt Sengers JMH (eds) Supercritical Fluids. Kluwer Academic Publishers, pp 697–705
Finis A (1996) Reinigung von Bodenmaterial durch Extraktion und Reaktion mit überkritischem Wasser und Kohlendioxid. Thesis, Technische Universität Hamburg-Harburg
Finis A, Brunner G (1995) Hydrolytic and Thermolytic Clean-Up of Contaminated Soil with Supercritical Water. In: van den Brink WJ, Bosman R, Arendt F (eds), Contaminated Soil ‘85. Kluwer Academic Publishers, p 1023–1028
Finis A, Brunner G (1996) Continuous Extraction of Contaminated Soil with Supercritical Wa-ter. In: von Rohr PR, Trepp C (eds) Process Technology Proceedings, vol 12, p 179–184
Finis A, Weber W, Brunner G (1997) Supercritical carbon dioxide for the removal of hydrocar-bons from contaminated soil. Sep Sci & Techn 32: 1403–1414
Fischer J, Hofmann H, Luft G, Wendt H (1980) Fundamental investigations and electrochemical engineering aspects concerning an advanced concept for alkaline water electrolysis. AIChE Journal 26: 794
Franck EU (1961) Überkritisches Wasser als elektrolytisches Lösungsmittel. Angewandte Chemie 10: 309–322
Härtel G, Peter S, Tunn W (1980) Über die Acidität wäßriger Lösungen der Chloride des Natriums, Calciums und Magnesiums in Anwesenheit von Kohlendioxid bei hohen Drücken
Hirth T (1992) Pyrolyse, Hydrolyse, und Oxidation kohlenstoffhaltiger Verbindungen in überkritischem Wasser bei Drücken bis 1000 bar. Thesis, Universität Karlsruhe
Killilea W, Swallow K, Malinowski K, Staszak C (1989) The modar process for the destruction of hazardous organic wastes — Field test of a pilot scale unit. Waste Management 9: 19–26
Michel S (1992) Grundlagenuntersuchung zur Extraktion von polyzyklischen aromatischen Kohlenwasserstoffen aus kontaminierten Böden mit überkritischem Kohlendioxid. Thesis, Universität Dortmund
Misch B (2001) Kontinuierliche Extraktion von Feststoffen und Reinigung mischkontaminierten Bodenmaterials mit überkritischen Fluiden. Thesis, Technische Universität Hamburg-Harburg
Misch B, Brunner G (1999) An alternative method of oxidizing aqueous waste in supercritical water, Oxygen supply by means of electrolysis. In: Steam, water and Hydrothermal Systems, Proc 13th Int Conf On Properties of Water and Steam. Toronto, Canada
Misch B, Brunner G (2000) Deutsche Forschungsgemeinschaft (eds) Sonderforschungsbereich 188, TP A 10, Final report 1998–1999–2000
Misch B, Finis A, Brunner G (2000) An alternative method of oxidizing aqueous waste. Journal of Supercritical fluids 17: 227–237
Mishra VS, Mahajani VV, Joshi JB (1995) Wet Air Oxidation. Industrial & Engineering Chemistry Research 34: 2–48
Modell M (1982) Processing Methods for the Oxidation of Organics in Supercritical Water. United States Patent B1 4338199
Nowak K (1996) Reinigung kontaminierter Bodenmaterialien mit überkritischem Wasser. Thesis, Technische Universität Hamburg-Harburg, 1995, Printed by Shaker, Aachen
Ogata Y, Yasuda M, Hine F (1988) Effects of the operating pressure on the performance of water electrolysis cells at elevated temperatures. J of the Electrochemical Soc: Electrochemical Science and Technology: 2976
Read AJ (1975) The first ionization constant of carbonic acid from 25 to 250 °C and to 2000 bar. J of solution chemistry 4, 1: 52–70
Savage PE, Gopalan S, Mizan TI, Martino CJ, Brock EE (1995) Reactions at Supercritical Conditions: Applications and Fundamentals. AIChE Journal 41: 1723–1778
Schleußinger A (1996) Einfluß von Schleppmitteln auf die Hochdruckextraktion am Beispiel der Bodensanierung. Thesis, Universität Dortmund
Takenouchi S, Kennedy G (1964) The binary system H2O — CO2 at high temperatures and pressures. American J of Science 262,pp 1055–1074
Toews K, Shroll R, Wai CM (1995) pH-Defining Equilibrium between Water and Supercritical CO2. Influence on SFE of Organics and Metal Chelates. Anal Chem 67 (22), pp 4040–4043
Wiebe R (1941) The binary system carbon dioxide — water under pressure. Chemical Reviews 29: 475–481
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Brunner, G., Misch, B., Firus, A., Nowak, K. (2001). Supercritical Water and Supercritical Carbon Dioxide for Cleaning of Soil Material. In: Stegmann, R., Brunner, G., Calmano, W., Matz, G. (eds) Treatment of Contaminated Soil. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04643-2_31
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DOI: https://doi.org/10.1007/978-3-662-04643-2_31
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