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EE&T | Water Research Foundation |
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Home > Glossary |
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 Actiflo - tradename of sand-ballasted coagulation/clarification process manufactured by Krueger AquaDAF - tradename for high-rate DAF process piloted by IDI in Ohio during this study AWWA - American Water Works Association (Denver, CO) BW - backwash oC - degrees Celsius CeraMem - ceramic membrane manufacturer (Waltham, MA) - supplied membranes used in bench-scale testing described in Chapter 4 ClariDAF - tradename for high-rate DAF process piloted by Leopold in Utah and Ohio during this study cm - centimeter CONTRAFAST - tradename for high-rate solids contact process piloted by Siemens in Utah during this study CUWCD - Central Utah Water Conservancy District (Orem, UT) - utility participant CWD - City of Cleveland Division of Water (Cleveland, OH) - utility participant DAF - dissolved air floatation DBP - disinfection by-product DensaDeg - tradename for high-rate solids contact process piloted by IDI in Ohio during this study DI - deionized water DOC - dissolved organic carbon EE&T - Environmental Engineering and Technology, Inc. (Newport News, VA) EQ - equalization FBRR - filter backwash recycle rule, part of surface water treatment rule Fe - iron Foundation - Water Research Foundation fps - ft/s FTW - filter-to-waste G - mixing intensity (1/s) for rapid mix or flocculation gal/ft2 - gallon per square foot gfd - gallons per day per ft2 gpm/ft2 - gallons per minute per square foot High-rate DAF - rates >8 gpm/ft2, up to about 20 gpm/ft2 ICR - Information Collection Rule IDI - Infilco-Degremont, Inc. (Richmond, VA) - manufacturer participant - pilot studies in Ohio and provided historical data from previous studies J - specific flux Koch - membrane manufacturer (Waltham, MA) - supplied membranes used in bench-scale testing described in Chapter 4 Krueger - I. Krueger, Inc. (Cary, NC) - manufacturer participant - provided historical data from previous studies Leopold - F. B. Leopold, Inc. (Zelienople, PA), now part of ITT Corporation - manufacturer participant - pilot studies in Utah and Ohio and historical data from previous studies MF - microfiltration membranes MG - million gallons mgd - million gallons per day mg/L - milligram per liter min - minute mL - milliliter mm - millimeter Mn - manganese NF - nanofiltration membranes nm - nanometer NPDES - National Pollutant Discharge Elimination System ntu - nephelometric turbidity unit O&M - operations and maintenance PAC - powered activation carbon PACl - polyaluminum chloride PCU - platinum-cobalt (Pt-Co) color unit PDR - preliminary design report (see Appendices A and B) PES - polyethersolfone - membrane material psi - pounds per in2 Pt-Co - platinum-cobalt PWP - pure water permeation RO - reverse osmosis membranes s - seconds SCCRWA - South Central Connecticut Regional Water Authority SFBW - spent filter backwash Standard-rate DAF - rates up to 6 gpm/ft2 TDS - total dissolved solids (TS - TSS) TMP - transmembrane pressure TOC - total organic carbon Trident HSC - tradename for high-rate solids contact process piloted by Siemens in Utah during this study TSS - total suspended solids (TS - TDS) TS - total solids (TDS + TSS) UF - ultrafiltration membranes UK - United Kingdom US - United States USEPA - United States Environmental Protection Agency (Washington, DC) WTP - water treatment plant WPP - water purification plant (WPP) x-flow - cross flow membrane velocity |
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