Industrial RO Plant Manufacturer: When Does Reverse Osmosis Stop Being the Right Answer?
Reverse osmosis is the default recommendation for most industrial water projects, and for many applications it is the right one. It is not the right answer for all of them. Some water problems are better solved with ion exchange, electrode ionisation, ultrafiltration, or simple filtration, and some are better solved with a combination. A industrial RO plant manufacturer who recommends RO in every case without explaining why is not giving you a comparison. This article sets out the conditions under which RO should be questioned. When the Water Is Already Close to the Target Low-TDS Feed Makes Full RO Hard to Justify If the source water already meets the purity your process needs after basic filtration, running it through RO spends energy and membrane life on removing salts that do not need removing. The cost difference matters: an RO plant carries pumping energy, membrane replacement, and reject disposal, none of which a simple filtration train requires. The first step is to test the s...