Study on survival time of microorganisms in fecal material in urine-diverting eco-san toilets
- Author:
Nga Huy Nguyen
- Publication Type:Journal Article
- Keywords:
ygiene
- MeSH:
Hygiene;
Salmonella typhimurium
- From:Journal of Preventive Medicine
2002;12(3):44-49
- CountryViet Nam
- Language:Vietnamese
-
Abstract:
Salmonella typhimurium phage 28B and Ascaris suum ova were used as indicators to evaluate the ability of pathogen destruction of 6 types of dry toilets and the retention time of fecal material processing vault needing for health safety. The results showed that: among three factors: pH, temperature, moisture, pH was the most significantly influenced on the survival time of indicators. When pH>10, Salmonella phages and Ascaris ova were destroyed very fast. These pH values could be reached if after defecation 300mL of wood-ash was added. At least 6 months of retention for fecal materials inside dry toilets are needed
