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AWWA MTC64612
- Fast-Track Membrane Designs for Small Water Systems
- Conference Proceeding by American Water Works Association, 03/01/2007
- Publisher: AWWA
$12.00$24.00
The Anones, Sana Muerto, and Hatillo-Camuy Filtration Plants are owned and operated by thePuerto Rico Aqueduct and Sewer Authority (PRASA). The three facilities have a treatmentcapacity of 0.25, 0.5, and 3.4 million gallons per day (MGD), respectively. Treatment at each ofthe facilities currently consists of aeration followed by conventional treatment (coagulation,clarification, and filtration).Each is located on a small river and can see raw water turbidity spikes from less than 10 NTU tomore than 5000 NTU in a matter of hours. This, combined with rising demands, the age of theexisting equipment, and climate have made it difficult to consistently and reliably achievefinished water turbidities less than 0.3 NTU as required by the Long Term 1 Enhanced SurfaceWater Treatment Rule (LT1ESWTR).As a result of the above and even more stringent future treatment and disinfection requirements,the Puerto Rico Department of Health (PRDOH) and U.S. Environmental Protection Agency (USEPA) Region 2 required PRASA todevelop a plan to improve finished water quality and comply with current and future drinkingwater regulations. It was ultimately decided that the final treatment scheme at each of the threefacilities would include upgrades to the existing conventional treatment processes, addition ofmembrane filtration, disinfection improvements, and other miscellaneous process improvements.To complete these projects, PRASA was granted nearly $12 million through the Drinking WaterState Revolving Fund. Includes table, figures.
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