Programme des sessions > Recherche par auteur correspondant > Hachemi Abdelkader

SourceURL:file:///home/hachemi/Documents/ Calco abstract.docx

The risk of scaling or corrosion of pipes and household appliances has attracted special interest on the part of drinking water supply systems designers. To address these deficiencies, the Calco-Carbonic balance in the water must be accurately maintained and evaluated using either the graphic methods, appreciation indexes, or the computer programs. In this work, we developed a computer-aided software for the computation of the Calco-Carbonic equilibrium of a water based on Legrand Poirier's model. This software program, established in FORTRAN GNU with a graphical interface written with python using pyQt library pyqt5, provides two practical functions: evaluate the water Calco-Carbonic equilibrium numerically and graphically, and computing the reagent rate required to be making water neither aggressive nor encrusting. The program validation was carried out by comparing our results with those of the case considered by Legrand et al. (1981). In addition, the implementation of the program to two cases of water coming from desalinations plants by reverse osmosis, of brackish water in the Sahara region and seawater in the Tipaza province, shows the same results that found at the two plants level. Among the five techniques studied for the case of brackish water desalination, the results allowed us to choose between two remineralization techniques. It consists in adding lime and CO2 or in filtration on an uncalcined dolomite bed. In the case of seawater, we applied the same carbonation remineralization technique where we set the final Ca2+ value at 8°F (80mg/lCaCO3). These techniques ensured a quality of the produced water that complies with drinking water standards.