ABSTRACT
HyFlo™ Continuous self-cleaning screenings belt by Waterlink Separations, Inc. Hygene Bacteriostatic filter media by Ionics, Inc. hygrometer An instrument for measuring the relative amount of moisture in the
air. hygroscopic Readily absorbing moisture from the atmosphere. hygroscopic water Water in soil that is in equilibrium with the atmospheric water
vapor and cannot be lost to evaporation or drain freely by gravity. Hymergible® Hydraulically driven submersible pump by Crane Pumps & Systems. Hyper+Ion® Cationic coagulants and flocculants by General Chemical Corp. hyperfiltration Filtration using a dense membrane that is often used synony-
mously with “reverse osmosis.” HyperFlex® HDPE containment liner by SLT North America, Inc. Hyperfloc® Polyelectrolyte used to enhance liquid/solid separation by Hychem,
Inc. HyperNet™ Net fabric composite by SLT North America, Inc. Hyperpress™ Combination belt filter/plate and frame press by Klein. Hypersperse Antiscalant for use in reverse osmosis systems by BetzDearborn-
Argo District. hypobromous acid (HOBr) An effective biocide. hypochlorite Chlorine anion commonly used as an alternative to chlorine gas for
disinfection. Chemical formula is OCl3-. Hypo-Gen® Sodium hypochlorite generation systems by Capital Controls Co. hypolimnetic aeration Aeration of water at the bottom of a lake. hypolimnion The lower layer of a stratified lake that results from varying water
densities. hypoxia The condition that exists when a body of water has a very low dissolved
oxygen level, usually less than 2 mg/L. Hypress Screenings dewatering press by Waterlink Separations, Inc. Hy-Q Flush bottom sluice gate closure by Rodney Hunt Co. Hysep® Decanter centrifuge by Westfalia Separator, Inc. Hy-Speed® Mixer by Alsop Engineering Co. Hytrex® Cartridge prefilters and prefilter housings by Osmonics, Inc. Hyveyor Troughing conveyor by Waterlink Separations, Inc.
