ABSTRACT
DWI Drinking Water Inspectorate. Agency whose role is to enforce water quality/supply regulations for potable water which meets in England and Wales.
DWPL See “Drinking Water Priority List (DWPL).” DWS Manufacturer of sewage grinders for JWC Environmental. Dynabeads® Anti-Cyrptosporidium by Dynal, Inc. DynaBlend™ Polymer blending and feeding system by Fluid Dynamics, Inc. DynaClear® Packaged water treatment system incorporating contact filtration by
Parkson Corp. DynaCycle® Regenerative catalytic oxidizer by Monsanto Enviro-Chem Systems, Inc. DynaFloc Feedwell Clarifier feedwell design to promote mixing of flocculants by
GL&V/Dorr-Oliver, Inc. Dyna-Grind Screenings and sewage grinder formerly offered by USFilter/Head-
works Products. Dynalloy® Filter cartridge with metal fiber media by USFilter/Filtration & Separation. dynamic head See “total dynamic head.” dynamic membrane A transient membrane formed on the surface of an estab-
lished membrane by solids filtered from the feed stream. Dynamic Probe™ Filter control system by Roberts Filter Group. Dynamic Systems Product group integrated within USFilter/Control Systems. DynaSand® Continuously backwashed moving bed sand filter by Parkson Corp. Dynasieve™ Self-cleaning rotary fine screen by Andritz-Ruthner, Inc. Dynatherm In-vessel composting system by Fairfield Service Co. Dynatrol® Measurement level switches and liquid measurement devices by Auto-
mation Products, Inc. DynaWave® Wet scrubbing system by Monsanto Enviro-Chem Systems, Inc. DynaZyme™ Odor control biofilter system by Monsanto Enviro-Chem Systems, Inc. dyne A unit of measurement equal to the force that imparts an acceleration of
1 cm/s2 to a 1 gram mass. Dyneco Former bar screen manufacturer acquired by Parkson Corp. dysentery A disease of the gastrointestinal tract usually resulting from poor san-
itary conditions and transmitted by contaminated food or water. Dystor Gas holder system for anaerobic digesters by USFilter/Envirex. dystrophic lakes Acidic, shallow bodies of water that contain humus and/or other
organic matter; contain many plants but few fish. dystrophy A disorder caused by defective nutrition or metabolism.
