Development of a transportable thermal separation process

Ayen, Richard J.; Swanstrom, Carl

doi:10.1002/ep.670100315

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…There are dozens of companies in North America that offer soil remediation by thermal desorption on a commercial basis, and a number of these technologies have been discussed in the literature. ,− …”

Section: Introductionmentioning

confidence: 99%

Thermal Desorption Treatment of Contaminated Soils in a Novel Batch Thermal Reactor

Smith

Berruti

Mehrotra

2001

Ind. Eng. Chem. Res.

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Low-temperature thermal desorption, in which thermal energy is used to vaporize and physically separate volatile and semivolatile organic contaminants from soil, is among the most promising and economic ex situ soil remediation alternatives. Experiments were performed using a bench-scale thermal desorber, the batch thermal reactor, which was developed as a prototype to commercial desorbers. A treatability study using four representative samples of industrial contaminated soil was followed by a fundamental study of the thermal desorption process using three controlled samples prepared by mixing a soil with binary mixtures of selected polynuclear aromatic hydrocarbons. For the industrial samples, the effect of desorber residence time, temperature, and several pretreatments on contaminant removal was investigated. Three of the five samples were successfully treated to the legislated soil remediation limits. Using the prepared samples, the effects of sample porosity, contaminant molar mass, desorber residence time, and temperature on thermal desorption were investigated. The experimental results were fitted to an exponential desorption equation, and the desorption rate curves were generated to provide a basis for scale-up.

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Section: Introductionmentioning

confidence: 99%

Thermal Desorption Treatment of Contaminated Soils in a Novel Batch Thermal Reactor

Smith

Berruti

Mehrotra

2001

Ind. Eng. Chem. Res.

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“…Fox et al ( 1991) described a thermal process for treating soils contaminated with PCBs, polyaromatic hydrocarbons, and other organic compounds by indirect heating that was evaluated under a Toxic Substances Control Act (TSCA) research and development permit. Ayen and Swanstrom ( 1991) reported on a fullscale thermal process consisting of a soil dryer and gas separation component that effectively treated PCBs, petroleum hydrocarbon, and chlorinated hydrocarbons in soils. In situ vitrification tests performed on buried waste sites showed that hazardous and radioactive contaminants were successfully immobilized or destroyed and up to 75% volume reduction was achieved (Kindle and Thompson, 1991).…”

Section: Remediation and Closurementioning

confidence: 99%

Hazardous waste: storage, disposal, remediation, and closure

Millano¹,

Jones²,

Ball³

1992

Water Environment Research

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“…Volatile organic compounds such as acetone, chloroethene, benzene, and toluene; and semi-volatiles such as ethyl benzene and xylene have been shown to be effectively removed from the soil matrices [4]. Several mobile continuous low temperature thermal temperature processes have been developed [5][6][7][8]. A pilot plant study was conducted and the results indicated that low temperature is an effective technique for treating RCRA waste sludges from petroleum refinery operations [9].…”

Section: Introductionmentioning

confidence: 99%