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Wastewater Treatment (33) Case Studies (28) Corrosion Resistance (19) Mechanical Seals (19) Mixing (16) Filters (15) Troubleshooting (14) Technology (13) Pump Curves (10) CIP Systems (9) Resources (8) Chemicals (7) Pump Piping (6) COP Systems (5) Food Safety (5) Slurry (5) Pulsation (4) Variable Frequency Drives (4) Water Hammer (4) Dairy (3) Seasonal Maintenance (2). Comparisons of primary research findings to the findings of the literature review are critically important for both types of studies. volutans), members of Spirillum are considered to be one of the largest species of bacteria. traditional point source facilities, such as municipal sewage treatment plants and industrial wastewater facilities, with little attention paid to runoff from streets, construction sites, farms, and other "wet-weather" sources. Javascript must be enabled for the correct page display. National Pollutant Discharge Elimination System (NPDES) Vessel General Permit (VGP) for. 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