Combined photochemical and biological processes for the treatment of linear alkylbenzene sulfonate in water.
In this study, the effects of photochemical pre-treatment (pilot-plant UV/H2O2 process) of linear alkylbenzene sulfonate (LAS) on its subsequent biological treatment were examined. It was observed that the photochemical pre-treatment of the LAS solution did not increase its biodegradability. Moreover, the effects of acclimated microorganisms on the biodegradability of the LAS solution were also studied. It was observed that the acclimated activated sludge increased the biodegradation of the LAS solution. However, due to the presence of some intermediates in the effluent of the photoreactor, the biodegradability of this effluent was less than the biodegradability of the untreated LAS solution with the same concentration of the LAS in the effluent of the photoreactor.
Mehrvar
Mehrab
M
Department of Chemical Engineering, Ryerson [corrected] University, Toronto, Ontario, Canada. mmehrvar@ryerson.ca
Tabrizi
Gelareh Bankian
GB
D017738:Alkanesulfonic Acids / Q000032:analysis*; D001673:Biodegradation, Environmental; D010777:Photochemistry; D012722:Sewage / Q000382:microbiology*; D014466:Ultraviolet Rays; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*
D017738:Alkanesulfonic Acids; D012722:Sewage; D014874:Water Pollutants, Chemical; C030641:alkylbenzyl sulfonic acid