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EnglishReductive Dechlorination (RD) is a fundamental biological process which take place when chlorinated compounds are in contact with a source of carbon under anaerobic conditions. The creation of a reactive zone with these characteristics inside contaminated aquifers is of fundamental importance in order to achieve the desired goals of decontamination. HRC (Hydrogen Release Compounds) biopolymer is widely employed in aquifers as source of carbon; its injection efficiency ,is strictly dependent on the employed injection protocol that is governed by two parameters: temperature and mixing rate. A rigorous rheological approach was used in order to better characterise and improve HRC injection into soils in a wide range of temperatures (from 10° to 60°C) relating the typical rheological parameters to injection ones. HRC rheological behaviour was described using Cross-Carreau Equation while the Andrade Equation was employed in order to characterise HRC temperature dependency. By increasing the working temperature above 35°C, the HRC has shown a further decrease of its viscosity (two orders of magnitude) especially at high shear rates typical of flowing conditions during injection.
Rheological characterization of hydrogen release compounds for aquifer remediation / Novarino D.; Tosco T.; Sethi R.; Santagata E.; Zanetti M.. - ELETTRONICO. - (2012). ((Intervento presentato al convegno SIDISA 2012 - Sustainable Technology for Environmental Protection tenutosi a Milano nel 26-29 giugno 2012.
| Titolo: | Rheological characterization of hydrogen release compounds for aquifer remediation | |
| Autori: | ||
| Data di pubblicazione: | 2012 | |
| Abstract: | Reductive Dechlorination (RD) is a fundamental biological process which take place when chlorinat...ed compounds are in contact with a source of carbon under anaerobic conditions. The creation of a reactive zone with these characteristics inside contaminated aquifers is of fundamental importance in order to achieve the desired goals of decontamination. HRC (Hydrogen Release Compounds) biopolymer is widely employed in aquifers as source of carbon; its injection efficiency ,is strictly dependent on the employed injection protocol that is governed by two parameters: temperature and mixing rate. A rigorous rheological approach was used in order to better characterise and improve HRC injection into soils in a wide range of temperatures (from 10° to 60°C) relating the typical rheological parameters to injection ones. HRC rheological behaviour was described using Cross-Carreau Equation while the Andrade Equation was employed in order to characterise HRC temperature dependency. By increasing the working temperature above 35°C, the HRC has shown a further decrease of its viscosity (two orders of magnitude) especially at high shear rates typical of flowing conditions during injection. | |
| ISBN: | 9788890355721 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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http://hdl.handle.net/11583/2498842
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