Industrial RO performance data, supply chain strategies, and drop-in replacement guides designed for engineers.
Deionized water vs reverse osmosis is rarely an either or call. The resin math, the CO2 trap that wrecks DI sizing, and how to spec the RO feeding it.
The Langelier Saturation Index only predicts RO scaling when it's run on the concentrate. The math, the vendor limits, and the recovery that breaks it.
Most RO membrane housing specs stop at the pressure rating. Qualification pressure and the head's pH limit decide more, and both are on the datasheet.
Reverse osmosis water pressure is set by feed TDS, temperature and membrane permeability. How to read the gauge, and what to do when it climbs.
Reverse osmosis waste water is set by array design and feed chemistry. The element limits that put a hard floor under your drain flow, and what lowers it.
How activated carbon water treatment actually protects RO membranes — EBCT sizing, chloramine math, the mesh trap, and the biofouling failure nobody plans for.
Before you buy point-of-entry reverse osmosis, check the reject water, concentrate disposal, and the storage-plus-repressurization build the quote leaves out.
What reverse osmosis desalination takes in practice: 800+ psi, energy recovery, boron limits, and the seawater membranes that do the work.
Does reverse osmosis remove chlorine? Not the way you'd hope. Free chlorine destroys polyamide RO membranes — here's what actually takes it out and why it matters.
We read the official water quality reports of 30+ cities across the US, Mexico and Chile and ranked the hardest, saltiest municipal water on the continent. Every number is from the utility itself.
Total dissolved solids is estimated from conductivity, not weighed. What a TDS reading hides, what RO rejection specs mean, and how permeate TDS creep signals membrane failure.
What silt density index measures, why RO manufacturers cap SDI15 at 5, how to run the test right, and what it misses. A field guide for commercial RO.
