The political discussion about future sanitation
systems seems to lack input of those working with the further development.
Even Agenda 21 is a complete failure in this respect - sadly in a core
subject for survival of future generations.
The main task of sanitation besides highest hygienic
standards is to keep soil fertile. Sanitation with the mixing up of food
and water cycles washes all those substances out to the seas that are extremely
harmful there (accumulation) and extremely necessary on the land (depletion
of fertility and fossile resources).
New integrated sanitation and waste management
systems will mostly have to respect different qualities of matter from
human settlements: Blackwater with biowaste, graywater, stormwater runoff
and non-biodegradable waste. Based on this distinction 9 differentiating
and 1 mixing systems with resources management are presented. Some of them
require careful examination in selected pilot projects.