In-situ landfill pyrolysis, remediation and vitrification

Details In-situ landfill pyrolysis, remediation and vitrification In-situ landfill pyrolysis, remediation and vitrification

1994-12-19

1998-05-05

Taylor, Dennis L.

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

405131, 405258, 588252, 588253, E02D 300, E02D 311, A62D 300

Patent

active

RE0357820

ABSTRACT:
The process or the present invention serves to remediate and reduce the volume of waste materials in a landfill site and increases the useful life of the treated landfill. The process steps involve drilling a series of holes into the waste material mass at proper spacing, inserting and operating a plasma arc torch in each drilled hole to pyrolize, remediate and vitrify the waste materials and allowing the melted materials to cool and harden. During the process, a gaseous by-product is produced and collected in a hood which is attached to scrubbing and chemical cleaning apparatus. The resultant gases are commercially useful as fuel gas and the vitrified residue is significantly smaller in volume than the original waste material volume, thus substantially extending the useful life of the landfill site and ultimately providing a firm foundation for construction.

REFERENCES:
patent: 4376598 (1983-03-01), Broums et al.
patent: 4776409 (1988-10-01), Manchak
patent: 5004373 (1991-04-01), Carter
patent: 5011329 (1991-04-01), Nelson et al.
patent: 5076727 (1991-12-01), Johnson et al.
patent: 5100259 (1992-03-01), Buelt et al.
Technical Paper entitled "An Innovative Process For The In Situ Waste Destruction and Vitrification of Buried Hazardous and Mixed Wastes".

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