| occurrence, removal and seasonal variation of "thermophilic" campylobacters in a sewage treatment plant in italy. | monitoring of "thermophilic" campylobacters in a sewage treatment plant in bologna (italy) has shown that incoming sewage contained a most probable number of 1630 campylobacters/100 ml. the secondary treatment in activated sludge tanks reduced 98.61% of campylobacters, 95.32% of fecal coliforms, 96.46% of fecal streptococci, 93.36% of salmonellas and 93.01% and 88.29% of bod5 and cod respectively. subsequent tertiary treatment with 3 ppm of chlorine dioxide for 15 min reduced 100% of campylobact ... | 1992 | 1457031 |