Wastewater pretreatment is the most overlooked stage in refinery operations—and often the most costly when things go wrong. Here are five common mistakes we've seen in petrochemical wastewater pretreatment—and how to fix them. Mistake #1: Underestimating the Solids Load Refinery wastewater isn't just water. It carries significant amounts of oily sludge, suspended solids, sand, and corrosion debris. Many facilities underestimate the solids load and design pretreatment systems that are simply undersized. The result? Contaminants overwhelm downstream treatment stages. The fix: Conduct thorough water testing to understand your actual solids load. Then size your filtration equipment accordingly. Mistake #2: Placing Filtration Too Far Downstream If your filtration is located after the biological stage, you're already too late. Contaminants have already damaged your aeration equipment and reduced treatment efficiency. The fix: Install filtration at the front end of the wastewater ...
When was the last time you thought about the quality of the water flowing through your building‘s chilled water system? For most facility managers, the honest answer is “not often enough.” And that’s a problem—because the water circulating through your chiller system is quietly determining your energy bills, your maintenance costs, and your equipment lifespan. The Invisible Threat in Your Cooling Water Cooling water in commercial HVAC systems isn‘t pure H2O. Over time, it accumulates a variety of contaminants: Sand and silt — drawn in from cooling towers and open-loop systems Pipe corrosion debris — flaking off from aging infrastructure Microbial growth — developing in stagnant areas of the system Scale deposits — precipitating from hard water These contaminants don’t just sit there harmlessly. They circulate through your entire system, day after day, gradually coating heat exchanger surfaces and reducing thermal transfer efficiency. The Cost of Ignoring Water Quality Here‘s what happe...