Fluence has extensive experience in designing and manufacturing reverse osmosis (RO) systems, which are used in desalination and many other water purification processes.
RO uses a cross-flow membrane separation process that can reject macromolecules and dissolved substances in a solvent, usually water. Substances retained in the separation discharge stream may be organic or inorganic, and generally have a size of a few angstroms. Separation depends on molecular weight, geometry, load, and other factors.
Some applications of RO include:
Rejection of boron >95%
Elimination of bromides
Recovery of RO concentrate with high TDS
Reuse of effluent water
CIP water recovery
There are several types of reverse osmosis membranes available on the market, including high-rejection, low-pressure, fouling-resistant, and heat-sanitizable. Choosing the right type and number of membranes for a project depends on both the quality of the water to be treated and the required quality of the finished product (permeate).
Due to variations in quality, it’s generally necessary to condition feed water to maximize the life of the membranes, and to avoid clogging, encrustation, or degradation.
At Fluence, our engineers have developed some of the most efficient and cost-effective reverse osmosis systems on the market. Here are a few of our innovations in reverse osmosis.