肠道病毒和大肠菌群在污泥泻湖中的存活情况。
Survival of enteroviruses and coliform bacteria in a sludge lagoon.
作者信息
Farrah S R, Bitton G, Hoffmann E M, Lanni O, Pancorbo O C, Lutrick M C, Bertrand J E
出版信息
Appl Environ Microbiol. 1981 Feb;41(2):459-65. doi: 10.1128/aem.41.2.459-465.1981.
Enteroviruses associate with aerobically and anaerobically digested sludge were determined before the addition of the sludge to a sludge lagoon. The fate of sludge-associated viruses was followed during detention of sludge in the lagoon and after application of sludge to land for disposal. While digested sludge was being added to the lagoon, enteroviruses were readily detected in grab samples of sludge from the lagoon. Sludge-associated viruses dropped to low or undetectable levels after disposal of sludge on land and during periods when addition of digested sludge to the lagoon was suspended. Changes in the levels of fecal coliforms in the lagooned sludge paralleled changes in the numbers of enteroviruses. Enteroviruses were not detected in water from deep wells located on the sludge disposal site or near the lagoon. During the initial part of the study, poliovirus serotypes accounted for greater than 90% of the viruses identified. Later, poliovirus serotypes comprised less than 40% of the virus isolates, and echoviruses and Coxsackieviruses were the most common enteroviruses identified.
在将污泥添加到污泥泻湖之前，对好氧和厌氧消化污泥中存在的肠道病毒进行了测定。在污泥滞留在泻湖期间以及将污泥用于土地处置后，追踪了与污泥相关的病毒的去向。当向泻湖添加消化污泥时，很容易在泻湖污泥的抓取样本中检测到肠道病毒。在将污泥用于土地处置后以及暂停向泻湖添加消化污泥的期间，与污泥相关的病毒数量降至很低或无法检测到的水平。泻湖污泥中粪大肠菌群水平的变化与肠道病毒数量的变化相似。在污泥处置场地或泻湖附近的深井水中未检测到肠道病毒。在研究初期，脊髓灰质炎病毒血清型占已鉴定病毒的90%以上。后来，脊髓灰质炎病毒血清型占病毒分离株的比例不到40%，而埃可病毒和柯萨奇病毒是鉴定出的最常见的肠道病毒。
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