The fate of Coxsackie virus A-13 in water reclamation.

Abstract

Coxsackie A-13 may be removed from sewage by a combination of activated sludge treatment using a very high sludge volume index in excess of 700 ml/1, followed by sand filtration. Chlorination with an O-tolidine residual of 0. 5 ppm with a contact time of 8 hrs. is adequate to inactivate this virus. The trickling filter process, and particularly the operation of the filter, should be studied to learn what modifications are necessary to produce a virus-free effluent.