id author title date pages extension mime words sentences flesch summary cache txt cord-323683-9h9mld6x Butler, M. Virus Removal by Disinfection of Effluents 2013-11-17 .txt text/plain 6655 288 45 The removal of viruses from sludges has only relatively recently attracted serious attention (Cliver, 1975; Berg, 1978; Osborn and Hattingh, 1978) but for effluents, various procedures have been adopted for some time, particularly disinfection with chlorine, a treatment now under critical review. Although many different enteric viruses are likely to be present in wastewater, the risks of transmission of infection via contaminated water in developed countries by various routes (Fig. 1 ) is thought to be slight although probably increasing, but elsewhere the risks may be very great indeed (WHO, 1976) . 4. The methods available for the inactivation of viruses in effluent differ little in principle from those applied to potable water, but are distinct from the disinfection of viruses contaminating, laboratory or medical equipment, where highly toxic chemicals like detergents, phenols, formaldehyde or permanganate may be used (Spalding et al 1977) . ./cache/cord-323683-9h9mld6x.txt ./txt/cord-323683-9h9mld6x.txt