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Showing 1 to 5 of 5 for “"Chloramine Decay"”.
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Interactions Between Copper and Chlorine Disinfectants: Chlorine Decay, Chloramine Decay and Copper Pitting
… examined from the perspective of disinfectant decay and copper pitting corrosion. Sparingly soluble cupric hydroxide catalyzed the rapid decay of free chlorine, which in turn, led to production of less soluble and more crystalline phases of cupric hydroxide. The catalytic activity of the cupric …
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Corrosion in New Construction:Elevated Copper, Effects of Orthophosphate Inhibitors, and Flux Initiated Microbial Growth
… metallic corrosion, microbial growth and the decay of chloramine disinfectant. On site water was sent to Virginia Tech from UNC for use in this bench scale study. The results from this study indicated that 100% orthophosphate inhibitor was the most effective corrosion inhibitor at decreasing …
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A Framework for Controlling Opportunistic Pathogens in Premise Plumbing Considerate of Disinfectant Concentration x Time (CT) and Shifts in Microbial Growth Phase
… system with one water flush per day, influent chloramine always decayed within four hours in stagnant pipes containing mature biofilms, which is 2-3 orders of magnitude faster than in the same water not contacting pipes. Chloramine often followed second order decay kinetics, though decay rate …
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Galvanic Lead Corrosion in Potable Water: Mechanisms, Water Quality Impacts, and Practical Implications
… leaching from simulated soldered pipe joints. Chloramine decay and the associated conversion of ammonia to nitrate during nitrification could create much higher lead contamination of potable water from solder in some cases. In practical bench-scale studies with water utilities, the CSMR was …
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Nitrification in premise plumbing and its effect on corrosion and water quality degradation
… water systems, due to changes from chlorine to chloramine as a secondary disinfectant in order to comply with new regulations for disinfectant by-products. The ammonia that is released from the chloramine decay supports nitrification. A comprehensive literature review systematically examined the …