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LECTURE 12 BIOREMEDIATION - MIT OpenCourseWare

LECTURE 12 BIOREMEDIATIONB ioremediationBioremediation is the use of microorganisms to destroy or immobilize waste materialsMicroorganisms include:Bacteria (aerobic and anaerobic)FungiActinomycetes (filamentous bacteria) BIOREMEDIATION mechanismMicroorganisms destroy organic contaminants in the course of using the chemicals for their own growth and reproductionOrganic chemicals provide:carbon, source of cell building material electrons, source of energyCells catalyze oxidation of organic chemicals (electron donors), causing transfer of electrons from organic chemicals to some electron acceptorElectron acceptorsElectron acceptors:In aerobic oxidation, acceptor is oxygenIn anaerobic, acceptor is (with decreasing efficiency):nitratemanganeseironsulfateM icroorganisms also need essential nutrients su

LECTURE 12 BIOREMEDIATION. Bioremediation Bioremediation is the use of microorganisms to destroy or immobilize waste materials Microorganisms include: Bacteria (aerobic and anaerobic) Fungi Actinomycetes (filamentous bacteria) Bioremediation mechanism Microorganisms destroy organic contaminants in the

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