|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||210/606 ; 210/611 ; 210/747 ; 210/910|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 24 인용 특허 : 0|
Novel methods for purifying contaminated subsurface groundwater are disclosed. The method is involves contacting the contaminated subsurface groundwater with methanotrophic or heterotrophic microorganisms which produce contaminant-degrading enzymes. The microorganisms are derived from surface cultures and are injected into the ground so as to act as a biofilter. The contaminants which may be treated include organic or metallic materials and radionuclides.
A method for purifying subsurface groundwater to remove certain enzymatically degradable contaminants therefrom, comprising the sequential step of: (A) providing a microorganism capable of producing an enzyme which allows the intact resting-state cells to degrade the contaminants; (B) growing the microorganisms under conditions which increase the amount and intracellular longevity of the enzyme, to produce an enzyme-enriched intracellular enzyme longevity-enhanced microorganism composition; and (C) contacting the subsurface groundwater with the enzyme-en...