Closing local nutrient cycles by retrieving and using nitrogen, phosphorus, potassium, trace elements and organic components contained in excreta are even more important considering some of the disadvantages of chemical fertilizers.

These have proven to be too expensive in many parts of the world or are simply unavailable to local farmers who often turn to using the untreated contents of latrine pits or septic tanks on their farmland. The long-term effects of chemical fertilizers on soil and food quality are also in dispute. As has been already stated, the production of chemical fertilizer requires large amounts of energy and the exploitation of finite mineral resources.

Hence, Scope has taken up extensive research on application of urine and compost for organic farming. Click Here for more information

The spilt-stream collection, treatment and reuse of different wastewater flows offer new possibilities for more specific and cost-efficient solutions.

Separated wastewater flows can be characterized as follows.

Black water – a mixture of faeces and urine with or without domestic wastewater from showers, washing machines etc

Yellow water - urine only or mixed with domestic wastewater

Brown water - black water with no urine

Grey water - domestic water without faeces or urine.

Mrs. Shantha Sheela Nair, RDLA Sec.harvesting ECOSAN banana bunch at Kaliyapalayam