CAJ | 학술논문

采用基于16S rDNA 的焦磷酸测序法对北京某水厂活性炭净水工艺各单元的细菌群落结构进行分析。结果显示，砂滤对细菌多样性影响较小，活性炭工艺使菌群多样性升高。活性炭颗粒上的细菌群落结构与各工艺出水差异明显。α，β和γ变形菌纲是工艺出水和活性炭上的优势菌，活性炭池可以有效去除α变形菌纲和γ变形菌，但加氯消毒后的出厂水中α变形菌纲比例很高。出厂水中的第一优势菌为嗜氢菌属，含量高达86.2%。出厂水和活性炭颗粒上发现了9种潜在致病菌，如短波单胞菌、黄色单胞菌和鞘氨醇单胞菌等，但相对丰度较低，对饮用水安全影响较小。
채용기우16S rDNA 적초린산측서법대북경모수엄활성탄정수공예각단원적세균군락결구진행분석。결과현시，사려대세균다양성영향교소，활성탄공예사균군다양성승고。활성탄과립상적세균군락결구여각공예출수차이명현。α，β화γ변형균강시공예출수화활성탄상적우세균，활성탄지가이유효거제α변형균강화γ변형균，단가록소독후적출엄수중α변형균강비례흔고。출엄수중적제일우세균위기경균속，함량고체86.2%。출엄수화활성탄과립상발현료9충잠재치병균，여단파단포균、황색단포균화초안순단포균등，단상대봉도교저，대음용수안전영향교소。
Bacterial community composition of effluents from the biological activated carbon (BAC)filtration process in a water treatment plant in Beijing was analyzed by 1 6S rDNA based py-rosequencing.The results showed that sand filtration had little effect on the bacterial diversity. However,the diversity of bacterial community was increased by the BAC process.Bacterial struc-ture on the carbon particles was remarkably different from the effluents of each processes.Alpha-proteobacteria,Betaproteobacteria and Gammaproteobacteria were the dominate groups in all sam-ples.Alphaproteobacteria and Betaproteobacteria could be removed by BAC.However,Alphapro-teobacteria predominated in the finished water after chlorination.The dominant specie in the fin-ished water was H ydrogenophaga sp .and its relative abundance was 86.2%.Nine potential pathogens were detected in the finished water and carbon particles,including Brevundimonas ,Fla-vimonas and Sphingomonas .Due to their relative low abundance,the risk of biological safety of drinking water remained at a low level.