Glossary
- AAMI Grade Water
- Absolute (Absolute Filter Rating)
- Absorbent
- Absorption
- Acclimatization
- Acid
- Acid aerosol
- Acid deposition/acid rain
- Acid neutralizing capacity
- Acidity
- Action level
- Activated alumina
- Activated carbon
- Activated silica
- Activated sludge
- Active groups
- Acute health effect
- Adhesion
- Adsorbate
- Adsorbent
- Adsorption
- Advanced oxidation process
- Advanced wastewater treatment
- Advanced water treatment
- Aerated lagoon
- Aeration
- Aeration tank
- Aerator
- Aerobic
- Aerosol
- Affinity
- Agglomeration
- Aggressive water
- Air check
- Air flotation
- Air gap
- Algae
- Algal blooms
- Aliquot
- Alkali
- Alkalinity
- Alluvium
- Alternating system
- Alum
- Ammoniacal nitrogen
- Amoeba
- Anaerobic
- Anaerobic digester
- Anaerobic organism
- Angstrom unit
- Anion
- Anion exchange
- Anode
- Anoxic
- ANSI
- Aquatic
- Aqueous
- Aqueous solubility
- Aquifer
- Aromatics
- Artesian
- ASME
- Assimilation
- Assimilative capacity
- Atom
- Atomic number
- Attenuation
- Attrition
- Attrition scrubbing
- Automatic water softener (or Automatic filter)
- Autothermal
- Available chlorine
- AWWA
- Back pressure
- Back siphonage
- Backflow
- Backflow preventor
- Backwash
- Backwashing
- Bacteria
- Bacterial water contamination
- Bacteriastatic
- Bactericide
- Bag filter
- Baghouse filter
- Balancing tank
- Bar
- Bar screen
- Barrier layer
- Base
- Batch operation
- Bed
- Bed depth
- Bed expansion
- Bed load
- Bed volume
- Belt press
- Benthic zone
- Best available technology
- Bicarbonate alkalinity
- Bicarbonates
- Binder
- Bioaccumulantion
- Biochemical oxygen demand (BOD)
- Biocide
- Biodegradable
- Biofilm
- Biological contaminants
- Biological control
- Biological filter
- Biological oxidation
- Biologically activated carbon
- Biomass
- Biomonitoring
- Bioremediation
- Biota
- Biotower
- Biotransformation
- Birm
- Black water
- Bleed-off
- Blind spots
- Blinding
- Blowdown
- BOD5
- Boiling point
- Bone char
- Bottled water
- Boundary layer
- Brackish water
- Breakpoint chlorination
- Breakthrough
- Brine
- Brine ejector (eductor)
- Brine seal
- Brine tank
- Buffer
- Bund
- Bypass
- Cadmium
- Cake
- Calcite
- Calcium (Ca)
- Calcium carbonate equivalent
- Calcium hypochlorite
- Candle filter
- Capacity
- Capillary action
- Capillary membranes
- Carbon dioxide
- Carbonaceous exchangers
- Carbonate hardness
- Carbonates
- Carcinogen
- Cartridge filter
- Catalyst
- Catch basin
- Cathode
- Cathodic protection
- Cation
- Cation exchange
- Caustic
- Caustic soda
- Centrifugation
- Centrifuge
- CFU
- Channel
- Channeling
- Check valve
- Chelate
- Chelating agents
- Chemical feeder
- Chemical Oxygen Demand (COD)
- Chemical stability
- Chloramines
- Chlorinated hydrocarbons
- Chlorination
- Chlorinator
- Chlorine
- Chlorine demand
- Chlorine-contact chamber
- Chromium
- Chronic health effect
- Clarity
- Climate factor
- Coagulant
- Coagulation
- Coalescence
- Coastal zone
- Coliform bacteria
- Coliform index
- Collector sewers
- Colloids
- Color throw
- Combined heat and power (CHP)
- Combined sewer
- Community water system
- Compensated hardness
- Composite sample
- Compound meter
- Compounds
- Concentrate
- Concentration
- Concentration factor (CF)
- Concentration polarization
- Concentration process
- Condensate
- Condensation
- Condenser
- Conductance
- Conductivity
- Conduit
- Consumptive water use
- Contact stabilization
- Contact time
- Contaminant
- Contamination
- Conventional sewer systems
- Conveyance loss
- Coolant
- Cooling tower
- Corporation cock
- Corrosion
- Corrosivity
- Critical bed depth
- Cross connection
- Cross linkage
- Crossflow
- Cryptosporidium
- CTA
- Cubic feet per minute (CFM)
- Cultural eutrophication
- Current
- Cyanides
- Cycle
- Cyclone
- D.I. or DI
- Dealkalinization
- Deashing
- Decant
- Decarbonation
- Dechlorination
- Decomposition
- Decrosslinkage
- Defluoridation
- Defoaming agents
- Degasification
- Deionization
- Delta P
- Demineralization
- Demineralized water
- Denitrification
- Density, apparent (Density, true)
- Depression storage
- Depth filtration
- Desalination
- Desorption
- Desulphurization
- Detention time
- Detergent
- Dewater
- Diafiltration
- Dialysis
- Diffuser
- Diffusion
- Digester
- Digestion
- Diluting water
- Dioxins
- Direct runoff
- Discharge
- Disinfectant(s)
- Disinfection
- Dispersant
- Disposal
- Dissolve
- Dissolved air flotation (DAF)
- Dissolved oxygen
- Dissolved solids
- Distillation
- Distribution System
- Dolomite
- Drag-out bath
- Drain line
- Drainfield
- Dredging
- Drinking water standards
- Drought
- Duplicates
- Dust
- DWV
- Dystrophic lakes
- Ecology
- Eductor
- Efficiency
- Efficiency standard
- Effluent
- Ejector
- Electrical charge
- Electrochemical cell
- Electrodialysis
- Electrokinetic decontamination
- Electrolysis
- Electrolyte
- Electronic water disinfection
- Electrons
- Electrostatic precipitator
- Elements
- Elution
- Elutriation
- Emulsifier
- Emulsion
- End-of-pipe techniques
- End-point
- Enrichment
- Equivalent per million
- Erosion
- Eschericha coli (E. coli)
- Estuary
- Eutrophic
- Eutrophication
- Evaporation
- Evaporation ponds
- Evapotranspiration
- Exchange sites
- Exchange velocity
- Exhaustion
- Facultative bacteria
- Fast rinse
- Fecal coliform
- Feed water
- Fermentation
- Ferric chloride/ ferric sulphate
- Ferric iron
- Ferrous iron
- Filox-R
- Filter
- Filter medium
- Filter press
- Filter-Ag
- Filtrate
- Filtration
- Fine bubble diffuser
- Fines
- First draw
- Fission
- Fixture count
- Fixture unit
- Flash distillation
- Floc
- Flocculants
- Flocculation
- Floodplain
- Flotation
- Flow
- Flow augmentation
- Flow controller
- Flow rate
- Flowmeter
- Fluidized bed
- Fluidized bed scrubber
- Fluoridation
- Fluorides
- Fluorocarbon (FCs)
- Flush valve (Flushometer)
- Flux
- FOG
- Formaldehyde
- Fouling
- Fragmentation
- Freeboard
- Freezing
- Freshwater
- Fume
- Fungi (Singular, Fungus)
- GAC
- Gallon
- Galvanic action
- Germicide
- Giardia
- Giardia lamblia
- Grain (gr)
- Grains per gallon (GPG)
- Gram (g)
- Granular activated carbon
- Granular activated carbon treatment
- Gravel support bed
- Gray water
- Greenhouse effect
- Greensand
- Groundwater
- Groundwater discharge
- Groundwater hydrology
- Gully
- Gypsum
- Half-life
- Halite
- Halogenated hydrocarbons
- Halogens
- Hard water
- Hardness
- Hardness leakage
- Hazardous waste
- Head loss
- Header
- Heat exchanger
- Heavy metals
- Heavy water
- Heme iron
- Hemodialysis
- Henry's Law
- Heterotrophic
- Hexametaphosphate
- High performance filter
- Holding pond
- Homeowner water system
- Hot lime (soda softening)
- Humidification
- Hydraulic classification
- Hydraulic conductivity
- Hydraulic gradient
- Hydro static pressure
- Hydrocarbon
- Hydrocyclone
- Hydroelectric power water use
- Hydrogen cycle
- Hydrogen sulfide (H2S)
- Hydrogeology
- Hydrograph
- Hydrologic cycle
- Hydrolysis
- Hydrophilic
- Hydrophobic
- Hydrosphere
- Hydroxyl
- Hypo chlorite
- Hypoxic waters
- Ice
- Imhoff cone
- Immiscibility
- Impermeable
- Impurities
- In-parallel flow
- In-series flow
- Incineration
- Indicator
- Indicator organisms
- Indicator tests
- Indirect discharge
- Industrial user
- Infiltration
- Inflow
- Influent
- Inhibitor
- Injection
- Inorganic
- Inorganic matter
- Insecticide
- Iodine number
- Ion
- Ion exchange
- Ion exchange treatment
- Ion exchanger
- Ionization
- Iron
- Iron bacteria
- Iron fouling
- Irrigation
- Jackson Turbidity Unit (JTU)
- Jar test
- KDF
- Kilograin
- Kinetic Energy
- Kinetic rate coefficient
- Kinetics
- Laboratory water
- Lagoon
- Lake
- Laminar flow
- Land application
- Langelier index (LI)
- Large water system
- Leach field
- Leachate
- Leachate collection system
- Leaching
- Leak correlator
- Leakage
- Legionella pneumophila
- Light absorption
- Lime
- Lime scale
- Lime softening
- Limnology
- Liquid
- Macroporous resin
- Magnesium
- Makeup water
- Manganese (Mn)
- Manganese greensand
- Maximum Contaminant Level (MCL)
- MCLG
- Mechanical aeration
- Mechanical filter
- Mechanical flotation
- Mechanical turbulence
- Media
- Medium-size water system
- Melting
- Membrane
- Membrane element
- Mercury
- Mesotrophic
- Metabolise
- Methane (CH4)
- MFS
- Micro organisms
- Microbial growth
- Microfiltration
- Microgram per Liter
- Microhm
- Micromho
- Micron
- Micron rating
- Microwave disinfection unit
- Milligram per Liter
- Mineral
- Mineral water
- Miscibility
- Mist
- Mist eliminator
- Mixture
- Molecular weight cutoff (MWCO)
- Molecules
- Municipal discharge
- Municipal sewage
- Municipal sludge
- Nanofiltration
- Negative charge
- Nephelometric Turbidity Unit (NTU)
- Net driving pressure
- Neutralization
- Neutralizer
- Neutrons
- Nitrate (NO3-)
- Nitrate sensitive area
- Nitrification
- Nitrifying bacteria
- Non-point sources
- Non-potable
- Noncarbonate hardness
- Normalization
- NSF
- Nucleus
- Nuisance contaminant
- Nutrient
- Nutrient pollution
- Ohm
- Oil interceptor
- Oligotrophic lakes
- Oocysts
- Operating pressure (Operation pressure)
- Operation and maintenance
- Organic
- Organic chemicals/compounds
- Organic contaminants
- Organic matter
- Organics ( i.e., organic chemicals)
- Organism
- Organophosphates
- Osmosis
- Osmotic pressure
- Outfall
- Overflow rate
- Overturn
- Oxalic acid
- Oxidant
- Oxidation
- Oxidation pond
- Oxidation-reduction potential
- Oxidizing agent
- Oxidizing filter
- Oxygen depletion
- Oxygen system
- Ozonator
- Ozone
- Ozone depletion
- Ozone generator
- Ozonizer
- Packed tower
- Packed tower scrubber
- Parallel flow filtration (PFF)
- Parameter
- Partial pressure
- Particle size
- Particulate
- Particulate loading
- Parts per billion
- Parts per million
- Pasteurization
- Pathogens
- Pentachlorophenol (PCP)
- Percent saturation
- Percolating water
- Percolation
- Periodic chart
- Permeability
- Permeate
- Persistence
- pH (potential of Hydrogen)
- Pharmaceutical grade water
- Phase
- Phenolphthalein
- Photosynthesis
- Physical adsorption (Van der Waals adsorption)
- Physical and chemical treatment
- Physical Stability
- Physical weathering
- Phytoplankton
- Pilot tests
- Plankton
- Plate scrubbers
- POE treatment
- Point source
- Polar substance
- Pollutant
- Pollution
- Polychlorinated biphenyls (PCBs)
- Polyelectrolytes
- Polymer
- Polyphosphate
- Polyvinyl chloride (PVC)
- POPs
- Pore
- Pores
- Portable exchange
- Positive charge
- Potable water
- Potentiation
- Potentiometric surface
- POU treatment
- Powdered activated carbon
- PPB
- PPM
- Pre-chlorination
- Pre-treatment
- Precipitate
- Precipitation process
- Precipitators
- Preferential adsorption
- Pressure drop
- Pressure loss
- Pressure sewers
- Pressure vessel
- Primary wastewater treatment
- Process water
- Product water
- Protons
- Protozoa
- Public water system
- Pumicite
- Purification
- Putrefaction
- Pyrogen
- Pyrolox
- Qualitative water assessment
- Quantitative water assessment
- Quartz sleeve
- Quicksilver water
- R.O. or RO
- Radioactive
- Radionuclides
- Radium
- Radon
- Raw sewage
- Raw water
- Reactivation (Revivification)
- Reaeration
- Recarbonization
- Receiving waters
- Recharge
- Recharge Area
- Recirculation
- Recovery
- Red List
- Redox
- Reduction
- Reed Bed
- Regenerant
- Regeneration
- Reject
- Rejection
- Rejection rate
- Reserve capacity
- Reservoir
- Residual
- Residue
- Resin
- Resistance
- Resolution
- Retentate
- Retentivity
- Reverse deionization
- Reverse Osmosis process
- Rotary scrubber
- Rotating biological contactor
- Run-off
- Rust (ferric oxide)
- Sacrificial anode
- Safe water
- Safe yield
- Saline water
- Salinity
- Salt
- Salt water intrusion
- Sand filter
- Sand filters
- Sand filtration
- Saturated solution
- Saturated zone
- Saturation
- Scale
- Scavenger
- Screen(s)
- Screening
- Seawater
- Secondary treatment
- Sedimentation
- Sediments
- Selective ion exchange
- Semi-confined aquifer
- Semipermeable
- Separate sewer
- Separation
- Septic tank
- Sequester
- Sequestering agent
- Service run
- Settleable solids
- Settlement tank
- Settling
- Sewage
- Sewage contamination
- Sewage sludge
- Sewerage
- Siliceous gel zeolite
- Silt
- Slow sand filtration
- Sludge
- Slurry
- Soda ash
- Sodium
- Sodium chloride
- Sodium hydrosulfite
- Soft detergents
- Soft water
- Softened water
- Softening
- Soil washing
- Sole Source aquifer
- Solidification
- Solubility
- Solute
- Solvent
- Soot
- Sorption
- Source Water
- Sparger
- Sparging
- Special waste
- Specific conductance
- Specific flux
- Specific gravity
- Spring
- Static tubular aerator
- Sterilization
- Stoke's Law
- Sub-micronic filtration
- Sublimation
- Submerged aerated filter
- Submerged biological contactor
- Submicron particles
- Sulfate-reducing bacteria
- Sulfur
- Sulphur dioxide (SO2)
- Surface aerator
- Surface tension
- Surface water
- Surfactant
- Suspended solids
- Swelling
- Synergism
- Tannin
- TCE (Trichloroethylene)
- TDS
- Tertiary treatment
- TH
- Thermal oxidation
- Thermal pollution
- Thin-film composite membrane (TFC)
- THM
- Throughput volume
- Titration
- Total acidity
- Total alkalinity
- Total chlorine
- Total dissolved solids (TDS)
- Total hardness
- Total organic carbon (TOC)
- Total solids (TS)
- Total suspended solids (TSS)
- Toxic water pollutants
- Transmembrane pressure (TMP)
- Transmission lines
- Transmissivity
- Transpiration
- Treatment
- Treatment plant
- Trickling filter
- Trihalomethanes (THMs)
- Tube settler
- Turbidity
- Turbulent flow
- Ultrafiltration
- Ultrapure water
- Ultraviolet (UV)
- Ultraviolet (UV) light
- Ultraviolet absorber
- Ultraviolet chamber
- Ultraviolet demand
- Ultraviolet dosage
- Ultraviolet light system
- Ultraviolet oxidation
- Ultraviolet rays
- Uniformity coefficient
- Univalent
- Unloading
- Unsaturated zone
- UP (Ultra pure) water
- Upflow (Up-Flow)
- Upflow softening
- Upper distributor
- Uranium
- Urban runoff
- UV
- UV ozone
- Vacuum breaker
- Validation
- Vapor (Vapour)
- Vapor (Vapour) extraction
- Vaporize
- Venturi
- Venturi aerator
- Venturi scrubber
- Virus
- Viruses
- Viscosity
- Void area
- Void volume
- Volatile
- Volatile organic chemicals (VOCs)
- Volatile organic compound (VOC)
- Waste incineration
- Waste minimization
- Waste treatment plant
- Waste treatment stream
- Wastewater
- Wastewater infrastructure
- Water (H2O)
- Water conditioning
- Water hammer
- Water monitoring
- Water pollution
- Water quality
- Water recycling
- Water retention
- Water softener (chemical)
- Water softener (mechanical)
- Water softener salt
- Water softening
- Water solubility
- Water storage pond
- Water supply system
- Water system
- Water table
- Water treatment device
- Watershed
- WBA
- Weak acid cation exchangers
- Weir
- Well
- Wellhead protection area
- Wet air oxidation
- Wetland
- Wettability
- WFI
- WHO
- WQA
- Xenobiotic
- Xylene
- Yield
- Zeolite Softening
- Zeolite(s)
- Zero discharge water
- Zero soft
- Zero soft water
- Zeta potential
- Zone of aeration
- Zone of saturation
- Zooplankton
- Zwitter ions
