Dessalinização da água dos poços do bairro Inhangome, distrito de Quelimane, usando o bambu - Bambusa vulgaris

Abstract

The present work pretends to improve the availability of drinking water in deprived areas, the adoption of treatment systems that are easy to implement at local level, low economic cost and that provide water with a recommended quality for human consumption. To this end, a water desalinator was constructed using bamboo (Bambusa vulgaris), which aimed to desalinate 3 wells of drinking water in Inhangome village, outskirts of the city of Quelimane. Desalination was based on bamboo. which is a plant available in the Inhangome community. The project was divided into two phases, the first part consisting of a collection of water and a bamboo preparation for water desalination, the second part was laboratory phase to analyze chemical physical effects (salinity, turbidity, pH, nitrates and fecal coliforms). Calculator of efficiency and excel was used to determine the efficiency of the system after the treatment. The desalination system showed to be efficient having reduced the salinity of the water from 90%, to 3.75‰ up to 0.3‰, a turbidity decreased 93% from 50 UNT to 3,2 UNT, the nitrite from 3.3 mg/l to 2, 1 mg/l, nitrate 60.3 mg/l to 45.8 mg/l, fecal coliforms 10 NMP/100ml to 4 NMP / 100 ml. The results of the desalinization showed that the system bamboo desalinizator has the capacity to transform her longs for the human ingestion, it still proved that it grants of the desalinizators technologically advanced, still tends as advantage the fact of not producing a solution hypersaline and not use electricity.