EVALUATION OF A PORTABLE WATER-PURIFICATION SYSTEM FOR THE REMOVAL OFENTERIC PATHOGENS

The need for personal and potable water treatment devices has evolved from consumer interest in improving and ensuring the quality of drinki ng water. Such devices are especially useful to hikers and campers who often must use available surface water supplies. A portable iodinated water purification system was evaluated for the ability to inactivate /remove Klebsiella terrigena, poliovirus type 1, rotavirus SA-11 and C ryptosporidium oocysts under a variety of different water quality cond itions: <1.1-10mg/L total organic carbon, turbidity <1-30NTU and total dissolved solids 200-1,500mg/L. The units were tested at room tempera ture and 4 degrees C. The results showed that the system can achieve a geometric average removal of 6 log(10) for Klebsiella terrigena, 4 lo g(10) for poliovirus type 1;Ind rotavirus S.4-11, and 3 log(10) of Cry ptosporidium oocysts. (C) 1997 IAWQ. Published by Elsevier Science Ltd .