• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Destruction of Enteric Bacteria and Viruses during Two-Phase Digestion
【24h】

Destruction of Enteric Bacteria and Viruses during Two-Phase Digestion

机译：两相消化过程中肠道细菌和病毒的破坏

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The pathogenic microorganism destruction obtained during two-phase anaerobic digestion was compared to that for a conventional single-stage digester using municipal wastewater treatment sludge. Operation was draw-and-fill. Total digester residence times of 10 days and 20 days were evaluated. Evaluations were carried out at 35 and 53 C. Microorganisms measured included fecal coliforms, Escherichia coli, fecal streptococci, and enterovirus. Pathogen reductions were compared to those calculated from a kinetic relationship developed specifically for draw-and-fill operation. Ascaris were added to digested sludge and held at 53 C for up to 8 hours to observe their decline with time under thermophilic conditions. Common digester operating parameters were also measured. At the thermophilic temperature of 53 C essentially all the microorganisms measured were reduced to undetectable levels. At 35 C, two-phase digestion achieved from 0.48 to 0.91 greater log reduction of bacterial indicators, but essentially the same reduction in virus.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号