Standard “off-the-shelf” or catalogued filters can work for routine tasks, but when feed water chemistry, flow rates, discharge limits, footprint, safety codes or integration with existing process equipment matter, a custom or specialty-engineered system is the better (often cheaper long-term) choice.
Here’s the thing about industrial operations: they’re thirsty. Manufacturing, mining, energy production, you name it, they all guzzle huge volumes of water to keep things humming.