Utilisation of synthetic soda-ash industry by-products

The optimal precipitation conditions were obtained by using the simplex optimisation method. Based on optimal conditions of calcium sulphate precipitation, the material balance was calculated. The provided economic analysis takes into account both the investment costs and the running costs. For the Polish case study, this technology can generate 135,000€ profit per year. The overall effect (direct plus environmental) is estimated to be 363,000€ per year.