3. Pros of Water Reuse
Advantages
•Reliable source of supply: little dependence on
weather conditions.
•Reduced stress on ‘traditional’
water supply: reduced demand for investments into expansion of existing water
supply schemes, since part of ‘traditional’ water sources is replaced by
reused sources.
•Availability near to agricultural
application, i.e. mostly outside cities.
•High content of nutrients (N, P) permits to reduce
application of synthetic fertilizers, thereby reducing cost.
•Benefits for rural population.
•Long experience exists in many countries
at different levels of development.
•Attractiveness of investment (private & public) in
the wastewater sector increases as a whole, if there is a market for water
reuse.
•‘WHO Guidelines for the safe use of
wastewater, excreta and greywater. Vol.2: Wastewater use in
agriculture’ (2006) permit for a flexible approach
towards treatment standards.