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首页> 美国卫生研究院文献>Applied and Environmental Microbiology >Survival of enteroviruses in rapid-infiltration basins during the land application of wastewater.
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Survival of enteroviruses in rapid-infiltration basins during the land application of wastewater.

机译：废水土地利用过程中快速浸润盆地中肠道病毒的存活。

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摘要

The downward migration through soil of seeded poliovirus type 1 and echovirus type 1 and of naturally occurring enteroviruses during infiltration of sewage effluent through rapid-infiltration basins was investigated. After 5 days of flooding, the amount of seeded poliovirus type 1 that had migrated 5 to 10 cm downward through the soil profile was found to be 11% of that remaining at the initial burial depth. The amount of echovirus type 1 determined to have moved an equal distance was at least 100-fold less. Migration of naturally occurring enteroviruses during infiltration of sewage effluent through soil could not be measured with accuracy because of the possibility of virus survival from previous applications of effluent. The rate of inactivation for seeded poliovirus 1 and echovirus 1 buried in the infiltration basins ranged between 0.04 and 0.15 log10 units per day during the time when the basins were flooded. Inactivation of these same seeded virus types and of indigenous enterovirus populations in the infiltration basins during the drying portion of the sewage application cycle ranged between 0.11 and 0.52 log10 units per day. The rate of virus inactivation was dependent upon the rate of soil moisture loss. These results indicate that drying cycles during the land application of wastewater enhance virus inactivation in the soil.
机译：研究了1型脊髓灰质炎病毒和1型脊髓灰质炎病毒以及自然存在的肠病毒在土壤污水通过快速渗透盆地渗透过程中在土壤中的向下迁移。淹水5天后，发现在土壤剖面中向下迁移了5至10 cm的1型脊髓灰质炎病毒播种量为最初埋葬深度剩余量的11％。确定移动了相等距离的1型回声病毒数量至少少了100倍。由于污水从先前的应用中可能存活下来，因此无法准确测量自然污水中的肠道病毒的迁移过程。淹没盆地期间，埋在渗透盆地中的脊髓灰质炎病毒1和回声病毒1的失活速率每天介于0.04和0.15 log10个单位之间。在污水处理周期的干燥阶段，这些相同的种子病毒类型和浸润池中本地肠道病毒种群的灭活范围为每天0.11-0.52 log10个单位。病毒灭活的速率取决于土壤水分流失的速率。这些结果表明，废水在土地上施用期间的干燥循环增强了土壤中的病毒灭活。

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