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Comparative fate of CrAssphage with culturable and molecular fecal pollution indicators during activated sludge wastewater treatment.
Environment International ( IF 11.8 ) Pub Date : 2020-01-10 , DOI: 10.1016/j.envint.2019.105452
Zhenyu Wu 1 , Justin Greaves 1 , Lillian Arp 1 , Daniel Stone 1 , Kyle Bibby 1
Affiliation  

Wastewater treatment plants are typically monitored using fecal indicator bacteria to ensure adequate microbial water quality of the treated effluent. Fecal indicator bacteria exhibit poor correlation with virus fate in the environment, including during wastewater treatment. Viral-based microbial source tracking methods have the potential to overcome this limitation. The recently discovered human gut bacteriophage crAssphage is a promising viral human fecal indicator. In this current study, primary influent, primary effluent, secondary effluent, and final effluent of a conventional activated sludge wastewater treatment plant were analyzed for a suite of fecal indicators to evaluate the suitability of crAssphage as a wastewater process indicator for virus removal. CrAssphage was the most abundant fecal indicator measured through the wastewater treatment process. Culturable and molecular bacterial fecal pollution indicators showed higher removal than viral fecal pollution indicators, including crAssphage, confirming the necessity of a viral-specific fecal monitoring target. CrAssphage was strongly correlated with adenovirus and polyomavirus molecular indicators through the wastewater treatment process. Literature comparison demonstrated site-specific removal of molecular fecal indicators during wastewater treatment highlighting the need for local performance validation. The high abundance of crAssphage and correlation with pathogenic viruses suggests the potential suitability of crAssphage as a viral fecal pollution process indicator during wastewater treatment.

中文翻译:

活性污泥废水处理过程中CrAssphage与可培养和粪便污染指标的比较结果。

通常使用粪便指示剂细菌监测废水处理厂,以确保处理后的废水具有足够的微生物水质。粪便指示菌与环境中的病毒命运(包括废水处理过程)之间的相关性很差。基于病毒的微生物来源跟踪方法具有克服这一限制的潜力。最近发现的人类肠道噬菌体crAssphage是一种有希望的病毒人类粪便指示剂。在本研究中,分析了传统活性污泥废水处理厂的一级进水,一级进水,二级出水和最终出水,以获取一系列粪便指标,以评估crAssphage作为去除病毒的废水处理指标的适用性。CrAssphage是通过废水处理过程测得的最丰富的粪便指标。可培养的和分子细菌性粪便污染指标显示的清除率高于包括粪噬菌体在内的病毒性粪便污染指标,这证实了病毒特异性粪便监测目标的必要性。在废水处理过程中,CrAssphage与腺病毒和多瘤病毒分子指标密切相关。文献比较表明,在废水处理过程中特定地点去除了粪便中的分子粪便指标,这突出表明了需要对本地性能进行验证。crAssphage的高丰度以及与致病病毒的相关性表明,CrAssphage在废水处理过程中作为病毒性粪便污染过程指标的潜在适用性。可培养的和分子细菌性粪便污染指标显示的清除率高于包括粪噬菌体在内的病毒性粪便污染指标,这证实了病毒特异性粪便监测目标的必要性。在废水处理过程中,CrAssphage与腺病毒和多瘤病毒分子指标密切相关。文献比较表明,在废水处理过程中特定地点去除了粪便中的分子粪便指标,这突出表明了需要对本地性能进行验证。crAssphage的高丰度以及与致病病毒的相关性表明,CrAssphage在废水处理过程中作为病毒性粪便污染过程指标的潜在适用性。可培养的和分子细菌性粪便污染指标显示的清除率高于包括粪噬菌体在内的病毒性粪便污染指标,这证实了病毒特异性粪便监测目标的必要性。在废水处理过程中,CrAssphage与腺病毒和多瘤病毒分子指标密切相关。文献比较表明,在废水处理过程中特定地点去除了粪便中的分子粪便指标,这突出表明了需要对本地性能进行验证。crAssphage的高含量以及与致病性病毒的相关性表明,CrAssphage在废水处理过程中作为病毒性粪便污染过程指标的潜在适用性。确认了病毒特异性粪便监测目标的必要性。在废水处理过程中,CrAssphage与腺病毒和多瘤病毒分子指标密切相关。文献比较表明,在废水处理过程中特定地点去除了粪便中的分子粪便指标,这突出表明了需要对本地性能进行验证。crAssphage的高丰度以及与致病病毒的相关性表明,CrAssphage在废水处理过程中作为病毒性粪便污染过程指标的潜在适用性。确认了病毒特异性粪便监测目标的必要性。在废水处理过程中,CrAssphage与腺病毒和多瘤病毒分子指标密切相关。文献比较表明,在废水处理过程中特定地点去除了粪便中的分子粪便指标,这突出表明了需要对本地性能进行验证。crAssphage的高丰度以及与致病病毒的相关性表明,CrAssphage在废水处理过程中作为病毒性粪便污染过程指标的潜在适用性。文献比较表明,在废水处理过程中特定地点去除了粪便中的分子粪便指标,这突出表明了需要对本地性能进行验证。crAssphage的高含量以及与致病性病毒的相关性表明,CrAssphage在废水处理过程中作为病毒性粪便污染过程指标的潜在适用性。文献比较表明,在废水处理过程中特定地点去除了粪便中的分子粪便指标,这突出表明了需要对本地性能进行验证。crAssphage的高含量以及与致病性病毒的相关性表明,CrAssphage在废水处理过程中作为病毒性粪便污染过程指标的潜在适用性。
更新日期:2020-01-11
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