Effect of Post-Treatment Conditions on the Inactivation of MS2 Bacteriophage as Indicator for Pathogenic Viruses after the Composting Process

• 作者: Amadou H. Maiga Hamidatu S. Darimani Naoyuki Funamizu Ryusei Ito
• 来源期刊: 农业化学和环境(英文)
• 学科: 医学
• 关键词: COMPOSTING TOILET MS2 BACTERIOPHAGE Temperature MOISTURE Content POST-TREATMENT
• 年，卷（期）: nyhxhhjyw,（2）
• 页码范围: 73-80
• 页数: 8页
• 分类号: R73

摘要

A rural model composting toilet system still had some pathogens in the compost after months of operation and hence requires a post-treatment. The aim of the study was to sanitize compost withdrawn from the composting toilet by setting post-treatment conditions. The kinetics inactivation of MS2 bacteriophage, selected as indicator for pathogenic viruses were determined during post-treatment at different temperatures (30°C, 40°C and 50°C) with varying moisture contents (50%, 60% and 70%). As a result, the inactivation rates during the post-treatment were 0.093 - 0.020 h-1, 0.025 - 0.088 h1, 0.447 - 0.100 h-1 at 30°C, 40°C and 50°C respectively. The inactivation rate coefficient (k) values of MS2 bacteriophage depended on higher temperature but not on moisture content.