Approach used / Response given
Our solution made it possible to carry out a partial by-pass post-drilling chlorination of the entire feed flow of the 38 water towers. The DOSATRON proportional dosing pumps, which are certified for drinking water, are installed in a bypass on the pipe and operate using the water flow as a source of energy. The disinfection additives are proportionally dosed and continuously injected with the water at the chosen dosage. The dose of the concentrated product is directly proportional to the volume of water flowing through the pump and this independently of variations in the pressure flow rate of the collector. Chlorination is placed upstream of the tanks to provide effective protection against the development of bacteria, protozoa, Escherichia Coli, etc. This upstream positioning of the chlorination combined with a suitable tank shape ensures that the contact time essential for water disinfection is respected.
Supply and realisation
Sade, a Dosatron's partner, was awarded the contract to design and supply equipment for the construction of 38 AEPs to be delivered on a turnkey basis to the Senegalese authorities. The population of the region can now consume water in compliance with WHO standards.
DOSATRON products certified by ACS meet the quality requirements set by the Public Health Code (CSP) transposing Directive n°98/83/CE of 3 November 1998 on the quality of water intended for human consumption.
The validity of a certificate can be checked by contacting the issuing laboratory, or by consulting the list of valid health attestations of conformity published by Groupe Carso laboratories.