Compositions and method for bioremediation of halogen contaminat

Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Destruction of hazardous or toxic waste

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4352625, 435264, 210611, D06M 1600

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active

057669295

ABSTRACT:
The present invention is for bioremediation method and compositions for promoting activity in indigenous micro-organisms, causing the micro-organisms to degrade organic contaminants. The bioremediation compositions are provided by admixing an amount of a sulfate salt to achieve from about 75 to about 250 parts per million in the contaminated soil, with a sufficient amount of an iron derivative to achieve from about 30 to about 100 parts per million in the contaminated soil, a sufficient amount of an electron donor to achieve from about 50 to about 75 parts per million in the contaminated soil, from about 1 to about 5 grams per liter of a yeast extract, from about 1 to about 5 grams per liter of a glacial till, a sufficient amount of a nitrogen compound to equal a concentration ratio of 100 parts of indigenous carbon to from about 5 to about 20 parts by weight of the nitrogen compound in the contaminated soil, a sufficient amount of a phosphorus compound to equal a concentration ratio of 100 parts by weight of indigenous carbon to 1 part by weight of the phosphorus compound within the contaminated soil. The bioremediation compositions may further include a surfactant, a muriate of potash and a compost. The micro-organisms are chosen from a group consisting of facultative, aerobic and/or anaerobic bacteria. The bioremediation compositions formulated in accordance with the present invention are applied to the soil resulting in the degradation of halogenated aliphatic and aromatic contaminants and the non-detection of vinyl chloride.

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