Heater element,system for heating soil and method of hot treating soil

An in situ thermal desorption (ISTD) soil remediation system may be used to remove or reduce contamination within soil. Heat may be transferred to the soil from resistively heated, bare metal heater elements. The heater elements may be placed directly within the soil. Alternately, the heater element...

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Bibliographische Detailangaben
1. Verfasser:	HAROLD J. VINEGAR,GEORGE L. STEGEMEIER
Format:	Patent
Sprache:	eng
Schlagworte:	DISPOSAL OF SOLID WASTE EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS RECLAMATION OF CONTAMINATED SOIL RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING
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Beschreibung
Zusammenfassung:	An in situ thermal desorption (ISTD) soil remediation system may be used to remove or reduce contamination within soil. Heat may be transferred to the soil from resistively heated, bare metal heater elements. The heater elements may be placed directly within the soil. Alternately, the heater elements may be suspended within casings. The heater elements may be conductive heaters, or the heater elements may be radiative heater elements. The ISTD soil remediation system may include temperature-resistant, chemical resistant, flexible conduits that transport off-gas removed from the ground to a treatment facility. A residence time of off-gas within the conduits may be sufficient to allow the off-gas to cool so that the off-gas may pass to a treatment facility through a manifold and piping made of polymeric material.