EXECUTIVE SUMMARY
Introduction
- Sanitation is vital for human health;
- Sanitation generates economic benefits;
- Sanitation contributes to dignity and social development; and
- Sanitation protects the environment.
New World Sanitation (NWS)
- Dignity to every man, woman and child;
- Acceptable by the people;
- Totally safe, hygienic and healthy;
- Completely environmental friendly;
- Totally odorless;
- Waterborne flush toilet;
- On site raw sewage treatment facility;
- Safe reusable recycle water;
- Rainwater collecting ability;
- Limited external water usage;
- No external electricity supply;
- Affordability; and
- No dependency on expensive time consuming civil reticulation.
Unit Costs for sanitation facilities
Water Borne
Maintenance on the SMARTSAN
- The re-seeding of the digester unit is done once monthly.
- The re-seeding is done by flushing half of the packet of bacteria blend down the toilet pot.
- The other half of the bacteria blend is then poured into the second aerobic tank through the inspection hole.
- A major service is required once per alternating month up to every six months depending on the number of people using the unit.
- Pump/suck ± 300 liters of sludge mixture out of An-aerobic tank and add 300 liters of raw water to An-aerobic tank.
- Re-seed with NWS Bacteria Blend as per minor service procedure.
Water usage comparison
- Cistern flush capacity: 9 liters per flush
- Average family of 6 people using the toilet 4 times per day: 216 liters per day
- Average flush water per 3 months: 19.4kl per 90 days
NWS SMARTSAN recycle unit:
- Rural areas, because of the difficulty in installing water-borne sewerage due to topographic factors, or to distances between villages;
- Rural schools, which lack infra-structure;
- Farming communities, for the same reason;
- Camp sites, including holiday sites;
- Densely populated informal settlements;
- Special events; and
- Disaster management.
Conclusion