Peroxidation microbial degradation

Britton, L. N. (1985). Feasibility Studies on the Use of Hydrogen Peroxide to Enhance Microbial Degradation of Gasoline. American Petroleum Institute Publication 4389-... 

Samples of [S- CH ] aldicarb, aldicarb sulfoxide and aldicarb sulfone were incubated with samples of groundwater and aquifer sediments to examine the potential for microbial degradation in situ in groundwater. The [S - XH3] aldicarb was provided by Union Carbide Agricultural Products Company the labeled sulfoxide was prepared from this by oxidation with hydrogen peroxide, the sulfone from the aldicarb by oxidation with peroxyacetic acid. These oxidants afforded better yields of cleaner product than the nr chloroperoxybenzoic acid previously used (18). 

Feasibility Studies on the Use of Hydrogen Peroxide to Enhance Microbial Degradation of Gasoline... 

Hazardons aromatics are destroyed by thermal processes that inclnde incineration of the hqnid hydrocarbons or their solntions in combnstible solvents. Anaerobic microbial degradation in the presence of high concentrations of dissolved oxygen in waste-water and oxidation with hydrogen peroxide or ozone in the presence of UV light are some of the methods reported in the hter-atnre to destroy mononnclear aromatics snch as benzene and tolnene. 

Nocardia and P. aeruginosa were shown to break the cw-PI chain by an oxidative mechanism since aldehyde groups were found to accumulate during microbial degradation. This is always the first product formed during the abiotic peroxidation of cw-PI and the evidence suggests that the bacteria initiate a radical-chain peroxidation. This will be discussed further in the context of polyolefin biodegradation. 

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