Moll D M, Summers R S, Breen A
Department of Civil and Environmental Engineering, University of Cincinnati, Ohio 45221, USA.
Appl Environ Microbiol. 1998 Jul;64(7):2755-9. doi: 10.1128/AEM.64.7.2755-2759.1998.
The impact of preozonation and filter contact time (depth) on microbial communities was examined in drinking water biofilters treating Ohio River water which had undergone conventional treatment (coagulation, flocculation, sedimentation) or solutions of natural organic matter isolated from groundwater (both ozonated and nonozonated). With respect to filter depth, compared to filters treating nonozonated waters, preozonation of treated water led to greater differences in community phospholipid fatty acid (PLFA) profiles, utilization of sole carbon sources (Biolog), and arbitrarily primed PCR fingerprints. PLFA profiles indicated that there was a shift toward anaerobic bacteria in the communities found in the filter treating ozonated water compared to the communities found in the filter treating nonozonated settled water, which had a greater abundance of eukaryotic markers.
在处理经过常规处理（混凝、絮凝、沉淀）的俄亥俄河水或从地下水中分离出的天然有机物溶液（包括臭氧氧化和未臭氧氧化的）的饮用水生物滤池中，研究了预臭氧氧化和滤池接触时间（深度）对微生物群落的影响。关于滤池深度，与处理未臭氧氧化水的滤池相比，处理后水的预臭氧氧化导致群落磷脂脂肪酸（PLFA）谱、单一碳源利用（Biolog）和任意引物PCR指纹图谱出现更大差异。PLFA谱表明，与处理未臭氧氧化沉淀水的滤池中发现的群落相比，处理臭氧氧化水的滤池中发现的群落向厌氧细菌转变，处理未臭氧氧化沉淀水的滤池中真核生物标记物更为丰富。
