Naidoo D, Appleton C C, Archer C E, Foutch G L
(corresponding author) Pollution Research Group, Howard Campus, University of KwaZulu-Natal, Durban, South Africa.
School of Life Sciences, Westville Campus, University of KwaZulu-Natal, Durban, South Africa.
J Water Sanit Hyg Dev. 2018 Dec 10;9(1):19-27. doi: 10.2166/washdev.2018.051.
sp. is the most prominent and resilient helminth of human health importance found in faecal sludge, making sp. an ideal index organism for inactivation testing. Heat treatment destroys helminths,allowingfor safe handling and possible reuse of sludge. Technology developmentfocuses on rapid heating to minimize equipment size and cost. This study evaluates viability with short heating time. were placed in a water bath at temperatures from 60 to 80 °C for various exposure times (5 seconds to 4 minutes) and were immediately processed and analysed via light microscopy. For all samples within these temperature and time ranges, less than 10% viable eggs were recovered. For 70, 75 and 80 °C, complete inactivation was observed for exposure time of 5 seconds and above.
某物种是在粪便污泥中发现的对人类健康具有重要意义的最突出且最具抵抗力的蠕虫，这使得该物种成为灭活测试的理想指示生物。热处理可杀死蠕虫，从而实现污泥的安全处理及可能的再利用。技术开发聚焦于快速加热以尽量减小设备尺寸和成本。本研究评估了短加热时间下的生存能力。将某物种置于60至80°C的水浴中，暴露不同时间（5秒至4分钟），然后立即通过光学显微镜进行处理和分析。在这些温度和时间范围内的所有样本中，回收的活卵不到10%。对于70、75和80°C，暴露5秒及以上时间可观察到完全灭活。
