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@article{Otal:2001,
author = {Otal, E and Mantzavinos, D and Lebrato, J and Livingston, AG},
journal = {Tecnologia del Agua},
pages = {55--62},
title = {Degradation of polyethilene glycol by the integration of chemical and biological treatment},
volume = {21},
year = {2001}
}
TY - JOUR
AB - Biodegradation of polyethylene glycol 10,000 molecular weight or higher presented problems, therefore suggesting that integration of chemical and biological treatments, to achieve complete degradation from these sizes of polyethylene glycol may be advisable. Integration of wet air oxidation and aerobic biological treatments of polyethylene glycol 10,000 was investigated. The organic compound, used as the sole carbon and energy source, was partially oxidized in a high pressure reactor achieving a 7% of total organic carbon removal. Enhanced biodegradability was assessed by comparing total organic carbon removal using an Aerobic Continuous-flow Stirred Reactor fed with untreated original organic or previously oxydized samples. The reactor operated at steady-state at loading rates of total organic carbon of 69 mg L-1 d-1 for untreated polyethylene glycol 10,000, and 520 mg L-1 d-1 for wet air oxidation-treated polyethylene glycol 10 000, reaching yields of 68% and 82% of total organic carbon removal, respectively. Even using a retention time 8-fold shorter, total organic carbon removal from the wet air oxidation-treated sample was higher than that from the untreated one. Therefore, previous wet air oxidation treatment may improve efficiency of conventional biological treatment of industrial waste waters containing this organic compound.
AU - Otal,E
AU - Mantzavinos,D
AU - Lebrato,J
AU - Livingston,AG
EP - 62
PY - 2001///
SN - 0211-8173
SP - 55
TI - Degradation of polyethilene glycol by the integration of chemical and biological treatment
T2 - Tecnologia del Agua
VL - 21
ER -