Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Cleaning using a micro-organism or enzyme
Patent
1995-03-10
1997-03-11
Pratt, Helen
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Cleaning using a micro-organism or enzyme
435262, 4352625, C12S 302
Patent
active
056100655
ABSTRACT:
A process for improved remediation of polynuclear aromatic hydrocarbon and/or polychlorinated hydrocarbon contaminated solid materials by integrated chemical/biological treatment comprising contacting the polynuclear aromatic hydrocarbon and/or polychlorinated hydrocarbon for chemical treatment with hydrogen peroxide in the presence of ferrous ion in liquid solution at a temperature of about 10.degree. C. to about 100.degree. C., oxidizing the polynuclear aromatic hydrocarbon materials and/or polychlorinated hydrocarbon materials and producing more readily biodegradable hydrocarbon product materials, and then biodigesting the product materials by aerobic and/or anaerobic biodigestion. A lower alcohol added to the chemical treatment in accordance with one embodiment further enhances oxidation of 4- to 6-ring aromatic hydrocarbon contaminants.
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Gauger W. Kennedy
Hill Andy H.
Kelley Robert L.
Kilbane II John J.
Srivastava Vipul J.
Institute of Gas Technology
Pratt Helen
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