BOILERS COPPER CORROSION ENVIRONMENTAL EPA EPRI MEMBRANES MONITORING POWER REGULATIONS REVERSE OSMOSIS SAFETY STEAM WASTEWATER

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Abstract

Make-up water treatment, flow-accelerated corrosion (FAC) control, and improvements in on-line chemistry monitoring techniques were among the topics presented at the 2016 Electric Utility Chemistry Workshop (EUCW), conducted June 7-9 in Champaign, IL. This article highlights some of the technical presentations at the 36^th annual conference.

Make-up Water Treatment

Since 2007, the EUCW has conducted half-day training events just before the main conference. This year’s seminar focused upon make-up water treatment. A key point of the 2016 seminar was that increasingly at power plants, and industrial plants for that matter, that make-up water may come from sources other than fresh water supplies. One emerging source is secondary treated municipal wastewater, and in fact in California wastewater effluent as makeup to industrial plants is mandated in many cases.

Municipal wastewater contains a number of impurities not typically found in high concentration in fresh water. These include ammonia, phosphorus (as phosphate), and organic compounds. Control of microbiological fouling in cooling systems is difficult enough anyway, but where municipal wastewater effluent serves as the makeup, the nutrients and food contained within can cause explosive microbiological growth.

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