Urban Sanitation and PNExt

Urban sanitation-

• Urban population has been increasing significantly in recent years, and cities are becoming hot spots for sanitation.

• Increasing population also produces a significant amount of waste in cities, which contains a significant amount of P and N.

• Transportation of this waste back to the agricultural farm is expensive, so we need a new technique that can extract nutrients and produce mineral fertilizer from this waste.

• Urine contains a significant amount of nitrogen, but there are several challenges to collecting it.

• We need to look for a new way to collect urine separately, mainly in urban areas.

• We have developed and tested the PNExt technique to extract nitrogen and phosphorus from urine.

• PNExt is also tested to extract and produce phosphorus-based mineral fertilizer from fecal sludge.

A pilot work to produce mineral fertilizer from urine in Pokhara, Nepal.

Furthermore, can we collect urine in a conventional toilet in urban areas/ large cities???

 solution is underdeveloped......................