Grabińska-Łoniewska Anna, Wardzyńska Grazyna, Pajor Elzbieta, Korsak Dorota, Boryń Krystyna
Institute of Environmental Engineering Systems, Warsaw University of Technology, Warsaw, Poland.
Pol J Microbiol. 2007;56(2):129-38.
Microbial contamination of a water distribution system was examined. The number and the taxonomy of non-pigmented and pigmented heterotrophic bacteria (HB), number of bacteria (Pseudomonas sp., Enterococcus sp., Campylobacter sp., Yersinia sp., representatives of the Enterobacteriaceae, coagulase-positive staphylococci, and C. pefringens) in the bulk water phase, biomass of zoogloeal aggregates of bacteria, fungi, algae, protozoa and rotifers (ZABFAPR) (separated from the above on 5 microm pore size filters) and in pipe sediments was determined. An increased number of HB occurred at the sampling sites situated as close as 4.2 km to the Water Treatment Plant (WTP), and was especially significant at 10.3 km. It was shown that the main reservoir of hygienically relevant bacteria did not occur in the water phase which is monitored in routine control analyses carried out by the WTP laboratories, but in the ZABFAPR biomass not monitored so far.
对供水系统的微生物污染情况进行了检测。测定了无色和有色异养细菌（HB）的数量和分类学特征、水体相中细菌（假单胞菌属、肠球菌属、弯曲杆菌属、耶尔森菌属、肠杆菌科代表菌、凝固酶阳性葡萄球菌和产气荚膜梭菌）的数量、细菌、真菌、藻类、原生动物和轮虫的菌胶团聚集体（ZABFAPR）（通过5微米孔径过滤器与上述物质分离）以及管道沉积物中的生物量。在距离水处理厂（WTP）仅4.2公里的采样点，HB数量增加，在10.3公里处尤为显著。结果表明，卫生相关细菌的主要储存库并非存在于WTP实验室常规控制分析所监测的水相中，而是存在于迄今未监测的ZABFAPR生物量中。
