活性汚泥による臭気排水の脱臭

抄録

A deodoring process utilizing activated sludge has been studied to treat malodorous effluent from sulphate pulping plant. In the study, vacuum evaporator condensate was selected as a malodorous effluent.
Steam stripping is generally employed to deodor malodorous effluent. Since such effluent usually has high BOD, it would be beneficial if a process which can eliminate both odor and BOD together is developed. Activated sludge provides a such possibility and will be more advantageous than other process, e. g. steam stripping, from energy-saving point of view.
Present study has been carried out in a commercial pulping plant. By optimizing operational parameters, it was found possible to deodor the effluent as well as to eliminate at least 90% of TRS and BOD.