International Conference on Rain Water Cistern Systems
"Rainwater Catchment for Future Generations"
Keelung, Taiwan, R.O.C. - August 1991
2: Catchment Water Quality Regulation
Qualite Des Eaux Des
Citernes De Captage Wea De Pluie Au Sahel
C. Tandia, Or. C. S. To
CREPA, Burkina Faso
Despite its existence for several centuries, the development of rainwater roof
catchment system faces great difficulties in African countries. particularly in
the Sahel. Obstacles for its expansion include the scepticism and uncertainty
of local populations concerning the safety of rainwater when store for long time.
In order to promote this technology in African co ntries, CREPA and CIEH have
established a program for construction of rainwater c tern systems throughout
Ouagadougou in Burkina Faso. Also, CREPA has extended his program to include all
other countries which are members of the Centre through demonstration projects.
At the samr time, CREPA examines regularly the water quality during conservation.
According to WHO standards, rainwater stored is drinkable Sometime , pollution
due to animals is noticed. But, the lack of organic matters in stored rainwater
precludes the growth of micro-organisms
In conclusion, when well constructed, the rainwater cistern system can be an
alternate source of water supply.
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