The calcium-carbonate equilibrium is a key factor in ensuring the protection of surfaces, equipment, fittings, and pipes in treatment systems, as well as guaranteeing effective disinfection. At various points in the network, determining the Langelier Saturation Index (LSI) is essential for water quality control, as it allows the assessment of the water’s potential to be either corrosive or scale-forming.

With the aim of optimising the management of the Langelier Index, the LANGELIER ALERT project has been launched to develop and validate a specific protocol for LSI management in water treatment systems. This protocol will be based on modelling the determining parameters, analysing historical data, and simulating corrective actions. In addition, an analytical tool for measuring and integrating the relevant parameters will be implemented and experimentally evaluated at CATABB.