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Title: Storage induced changes in coliform, heterotrophic groups of bacteria and nutrient levels of human urine for its safe use in biological production
Authors: Jana, BB
Lahiri, Susmita
Sarkar, D
Rana, Sukanta
Bhakta, JN
Paul, Dipak
Keywords: Excreta;Mineral fertilizer;Recycling;Sewage;Sustainability
Issue Date: Aug-2016
Publisher: NISCAIR-CSIR, India
Abstract: Human urine is a potential source of various nutrients, minerals and trace elements. Its use as a fertilizer is growing popular among farmers. Here, we examined the pattern of changes in the counts of coliform, heterotrophic bacteria as well as physico-chemical characteristics of human urine during different days of storage under closed conditions at ambient temperature. We observed that after 253 days of storage under closed condition, the coliform counts were reduced significantly and remained within the safe limit to be used as fertilizer. With increase in storage period, the concentration of phosphate showed decline coupled with rise in pH, alkalinity and electrical conductance. Our study revealed that human urine can be used as safe fertilizer after 8 months of storage under closed conditions at ambient temperature ranging 25-35ºC.
Page(s): 544-548
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Appears in Collections:IJEB Vol.54(08) [August 2016]

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