- Access Tunnel
- Acid Descale
- Activated Sludge
- Activated Sludge Process
- Adiabatic Cooling
- Aeration
- Aeration Tank
- Aerobic Bacteria
- Air Inlet
- Air Recirculation
- Air Separator
- Air Washer
- Airflow
- Algae
- Algaecide
- Algicide
- Alkalinity
- Ambient Atmosphere
- Ambient Wet Bulb Temperature
- Anaerobic
- Anaerobic Bacteria
- Anode
- Anodic Reaction
- Anoxic
- Antifoam
- Approach
- Array
- Atmospheric Pressure
- Atmospheric Tower
- ATP (total and free)
- Bacteria
- Bactericide
- Basin
- Basin Sump
- Bioaugmentation (Secondary Treatment)
- Biochemical Oxygen Demand (BOD)
- Biocide
- Biofilm
- Biological Oxidation
- Bleedoff
- Blowdown or Bleed
- Boiler Header
- Boiler Horsepower
- Boiler Scale
- Boiler Sludge
- British Thermal Unit (BTU)
- Bulking Sludge
- Calcite
- Capacity
- Carryover
- Casing
- Cathode
- Cathodic Reaction
- Cell
- Cell Dimensions
- Celsius
- Chelation
- Chemical Oxygen Demand (COD)
- Chiller
- Chiller Tube
- Chlorination
- Circulation Rate (CR)
- Circulation Rate, Load Corrected (CRc)
- Closed Loop
- Coagulation
- Cold Water Basin
- Cold Water Temperature (CWT)
- Cold Well (or Sump)
- Coliform Organisms
- Combined Sewer
- Composite Sample
- Concentrate
- Condensate
- Condensate Tank
- Condenser
- Convection Heat Transfer
- Cooling Factor
- Cooling Range
- Cooling Tower
- COP (Coefficient of Performance)
- Copolymer
- Corrosion
- Corrosion Cell
- Corrosion Coupon
- Corrosion Inhibitor
- Counterflow Tower
- Crevice Corrosion
- Crossflow Tower
- Crystal Modification
- CWT
- Cycles of Concentration
- DBT
- Deaerator
- Dealkalized Water
- Defoamer
- Deionized or Demineralized Water
- DeltaT (∆T)
- Denitrification
- Deposit
- Deposition
- Design Conditions
- Desilting Sump
- Desuperheater
- Dew Point Temperature
- Differential Pressure (∆P or “delta p”)
- Diffused Air
- Diffusion Deck
- Digestion
- Dispersant
- Dispersion
- Dissolved Air Flotation
- Dissolved Oxygen (DO)
- Dissolved Solids
- Distribution Basin
- Distribution Box
- Distribution Nozzle
- Distribution System
- Double Flow Water Cooling Tower
- Downspout
- Drift Eliminator
- Drift, Windage Loss, or Carryover
- Drum Vent
- Dry Bulb Temperature
- Economizer
- Effluent
- Electric Boiler
- Eliminator
- Eliminator Board
- Entering Wet Bulb Temperature
- Enthalpy
- Environmental Debris
- Equivalent Direct Radiation (EDR)
- Erosion Corrosion
- Escherichia Coli
- Evaporation Loss
- Evaporation Rate
- Evaporative Condenser
- Evaporative Cooling
- Exhaust Wet Bulb Temperature
- Exit Basin Temperature
- Exit Diameter
- Expansion Tank
- Extended Aeration
- Facultative Bacteria
- Fahrenheit
- Fan
- Fan Deck
- Feed
- Feedwater
- Feedwater Header
- Feedwater Trough
- Fill Bars
- Fill Deck
- Fill or Packing
- Float Valve
- Floc
- Flocculation
- Flow
- Flow Control Valve
- Fluid Cooler
- Flume
- Fluorescence
- Fluorescent Tracer
- Flux
- Fogging
- Forced Draft Water Cooling Tower
- Fouling
- Fungi
- Galvanic Corrosion
- Generating Tubes (Risers)
- GPM (gpm)
- Grease
- Grit
- Handhole
- Head pressure
- Header
- Heat Exchanger
- Heat Load
- Heat Load or Tower Capacity
- Hot Deck
- Hot Water Temperature (HWT)
- Hotwell
- HTI (Holding Time Index)
- Hyperbolic Induced Draft Water Cooling Tower
- Induced Draft Water Cooling Tower
- Infection
- Inlet Wet Bulb Temperature
- Inorganic Material
- Langelier Saturation Index (LSI)
- Larson-Skold Index
- Latent Heat
- Lateral Header
- Legionella
- Legionellosis
- Legionnaire’s Disease
- Louvers
- Makeup
- Makeup Rate
- Makeup Tube, Downcomer, Supply Tube
- Makeup Water
- Manhole
- Manifold
- Mechanical Draft Water Cooling Tower
- Micro-Organisms
- Microbiologically Influenced Corrosion (MIC)
- Mixed Liquor
- Mixed Liquor Suspended Solids (MLSS)
- Mixed Media Gravity Filter
- Mud Drum
- Multiple Pass (or Permeate Staged) Systems
- Multiple Stage (or Concentrate Staged) System
- Natural Draft Water Cooling Tower
- NDP (Net Driving Pressure)
- Net Positive Suction Head (NPSH)
- Nitrification
- Nitrogen
- Nitrogen Cycle
- Nominal Tower Dimensions
- Nonoxidizing Biocide
- Nozzle
- NPF (Normalized Permeate Flow)
- Nutrient
- Open Feed Water Heater
- Organic Material
- Organic Matter
- ORP (Oxidation-Reduction Potential)
- Orthophosphate
- Overall Tower Dimensions
- Oxic
- Oxidation
- Oxidation Ponds or Lagoons
- Packing
- Percent Load (% Load)
- Permeate
- pH
- pH of Saturation (pHS)
- pH Value
- pHeq (pH of Equilibrium)
- Pitot Tube
- Pitting Corrosion
- Plate and Frame Heat Exchanger
- Plenum
- Plume
- Polyelectrolytes
- Polymer
- Polyphosphate
- Potable Water
- Practical Scaling Index (PSI) (a.k.a. Puckorius Scaling Index)
- Pressure Vessel
- Pretreatment
- Primary Waste Treatment
- PSI (psi)
- PSIG (psig)
- Psychrometric Chart
- Radiant Heat Transfer
- Range
- Raw Wastewater
- Raw Water
- Reactor
- Receiving Waters
- Redistribution Basin
- Rejection
- Retention Time
- Return Activated Sludge
- Return Sludge
- Reverse Osmosis
- Riser (Generating Tubes)
- Ryznar Stability Index (RSI)
- Sacrificial Anodes
- Saturation Temperature
- Scale
- Scale Inhibitor
- SDI (Silt Density Index)
- Secondary Waste Treatment
- Secondary Waste Treatment (Bioaugmentation)
- Sedimentation Tanks
- Sewage
- Sewers
- Shell & Tube Heat Exchanger
- Sludge
- Sludge Age
- Sludge Digestion
- Sludge Index
- Sludge Reaeration
- Softened Water
- Softener
- Specific Conductance
- Specific Heat
- Splash Bar
- Splitter Box
- Stage
- Stage Heater
- Steam Boiler or Steam Generator
- Steam Circulator Tubes
- Steam Drum
- Steam Header
- Steam Separation or Steam Scrubber
- Steam Trap
- Stress Corrosion
- Superheater
- Supply Header
- Surfactant
- Suspended Solids
- Terpolymer
- Tertiary Waste Treatment
- Thermal Capacity
- Thermal Storage System
- Threshold Inhibition
- Total Dissolved Solids
- Total Solids
- Train
- Trickling Filter
- Tube Sheet
- Turbidity
- Turnaround
- Uptake
- Wall Tube
- Waste Activated Sludge
- Waste Treatment Sludge
- Wastewater
- Water Cooling Tower
- Water Loading
- Water Pollution
- Wet Bulb Temperature
- Wet Dry Tower
- White Rust
- Working Pressure
- Yeast & Molds