Formulation and processing of 'night soil' as organic fertilizer
2006
Ngilangil, L.E. | Ballesil, Ma. L.A.
The study aimed to formulate and process night soil into an organic fertilizer. It was conducted at the Material Recovery Facility, Don Mariano Marcos Memorial State University, North La Union Campus from December 2005 to May 2006. The different treatments used were the following: T0-2kg faeces + ash + 20ml biosol, T1-2kg faeces + ash + 20ml biosol + 1kg sawdust, T2-2kg faeces + ash + 20ml biosol + 1kg grass clippings, T3-2kg faeces + ash + 20ml biosol + 1kg limestone, T4-2kg faeces + ash + heat. Completely Randomized Design (CRD) was used in assigning the different treatments. Analysis of variance was used in the analysis of data. The number of decomposition days was observed for 10 weeks. It was found out that burnt night soil had the shortest period of decomposition at 35 days. After three weeks of decomposition, the night soil + grass clippings organic fertilizer had the highest mean temperature of 29.0 degree Celsius. The matured composts after secondary treatment were found to be free from Escherichia coli and Salmonella spp. Nutrient analysis of composted faeces without additives gave higher values in terms of nitrogen and phosphorous content compared to other processed treatments. Burt night soil had higher potassium content.
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