Thermogravimetric study of thermal decontamination of soils polluted by hexachlorobenzene, 4-chlorobiphenyl, naphthalene, or n-decane

Risoul, Véronique; Pichon, C.; Trouvé, Gwenaëlle; Peters, William A.; Gilot, P.; Prado, G.

doi:10.1016/s0304-3894(98)00267-2

Cited by 25 publications

(22 citation statements)

References 20 publications

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“…Several studies on thermal desorption treatment have been performed in order to understand the fundamentals of contaminant release [8][9][10] and to investigate the effects of process physical parameters on the remediation efficiency of hydrocarbon contaminants such as PCBs [11,12], PCPs [13], chlorinated solvents [14,15], and PAHs [16,17]. Temperature, treatment time and soil characteristics have been identified as key factors of remedial processes.…”

Section: Introductionmentioning

confidence: 99%

Low-temperature thermal desorption of diesel polluted soil: Influence of temperature and soil texture on contaminant removal kinetics

Falciglia

Giustra

Vagliasindi

2011

Journal of Hazardous Materials

185

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Section: Introductionmentioning

confidence: 99%

Low-temperature thermal desorption of diesel polluted soil: Influence of temperature and soil texture on contaminant removal kinetics

Falciglia

Giustra

Vagliasindi

2011

Journal of Hazardous Materials

185

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“…Several studies have investigated effects of temperature, heating rate, total pressure, pollutant type, and soil components [3][4][5][6][7][8][9]. Physical transport of pollutants away from individual soil particles and through packed soil beds have been simulated mathematically [2,3,5].…”

Section: Introductionmentioning

confidence: 99%

“…Physical transport of pollutants away from individual soil particles and through packed soil beds have been simulated mathematically [2,3,5]. However, chemical reactions of contaminants during their separation from soil have typically not been fully accounted for in such simulations, even though such chemistries may give rise to adverse by-products, e.g., carcinogenic or mutagenic polycyclic aromatic hydrocarbons (PAH) [9].…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature and soil components on emissions from pyrolysis of pyrene-contaminated soil

Risoul¹,

Richter²,

Lafleur³

et al. 2005

Journal of Hazardous Materials

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“…In other words, there is an excellent foundation to support the belief that electrical fields can be successfully applied to solve environmental problems. Practical applications of electrical fields such as the "Lasagna" project for soil cleaning [3], the use of corona discharges for the elimination of organic contaminants in aqueous solutions [4], and the electroheating cleaning [5] of soils clearly prove that electrokinetic methods have high potential for these types of developments.…”

Section: Introductionmentioning

confidence: 99%

Design criteria for soil cleaning operations in electrokinetic remediation: Hydrodynamic aspects in a cylindrical geometry

2005

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The applications of electrokinetics embrace a large family of important industrial, pharmaceutical, biomedical, and environmental applications. Processes such as separation, drug delivery, soil remediation, and others constitute alist of applications where electrical fields are used to induce the movement of solute species. Different transport driving forces participate in the motion of the solute. In the particular case of soil remediation, the electromechanisms may compete with buoyancy and advection, promoting distinct flow regimes. As a rule of thumb, some of the earlier applications of electrokinetic phenomena, mainly in the area of electrophoresis, neglected this competition, and therefore the hydrodynamics of the systems was considered simpler. The nature of the process in soil, a porous media, calls for a different approach and is in need of further analysis of the complete map of collaborating driving forces. The identification and analysis of the characteristic flow regimes may lead to important guidelines for improving the separation, avoiding the mixing, and more efficient cleaning in a given application. In this contribution, using a cylindrical capillary model, the basic aspects of the behavior of the system are captured. A differential model is formulated using simplifying assumptions, maintaining the mathematical aspects to a minimum level, and a solution is presented for the different fields, i.e., the temperature and the velocity. Based on the selection of values of the parameter space, several limiting cases and flow regimes are presented and discussed. Implications for the design of devices and cleaning strategies are also included. Needs for further research are identified. The main idea behind the study is to obtain a qualitative and semiquantitative description of the different flow regimes inside the channel. This information is useful to identify further aspects of the investigation and delineate a systematic approach for a more rigorous description. More specifically, the authors believe that the results obtained in this study are useful to promote a deeper understanding of the behavior of the system and to have a better idea about the experimental effort needed for validation of the different trends.

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Thermogravimetric study of thermal decontamination of soils polluted by hexachlorobenzene, 4-chlorobiphenyl, naphthalene, or n-decane

Cited by 25 publications

References 20 publications

Low-temperature thermal desorption of diesel polluted soil: Influence of temperature and soil texture on contaminant removal kinetics

Low-temperature thermal desorption of diesel polluted soil: Influence of temperature and soil texture on contaminant removal kinetics

Effects of temperature and soil components on emissions from pyrolysis of pyrene-contaminated soil

Design criteria for soil cleaning operations in electrokinetic remediation: Hydrodynamic aspects in a cylindrical geometry

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