What is the main goal of using an antiscalant before Reverse Osmosis?

The main goal of using an antiscalant before Reverse Osmosis (RO) is to prevent scaling on membranes. Reverse Osmosis is a filtration process that separates contaminants from water by passing it through a semi-permeable membrane. When water contains high levels of dissolved minerals, such as calcium and magnesium, these minerals can precipitate out and form scale on the membrane surface. This scale can significantly hinder the performance of the RO system, leading to reduced efficiency, increased operational costs, and potentially damaging the membranes.

Antiscalants work by altering the properties of these dissolved mineral salts, preventing them from crystallizing and forming scale during the RO process. By utilizing an antiscalant, the maintenance of optimal flow rates and separation efficiency is enhanced, which ultimately prolongs the life of the membranes and ensures the reliable operation of the water treatment system.

Using an antiscalant does not relate to improving water flavor, adjusting pH levels, or raising temperature, which are not primary functions in this specific context of enhancing Reverse Osmosis effectiveness.