Glossary
- Acidity:
The capacity of wastewater or water to neutralize bases.
- Activated sludge:
-
Sludge generated in wastewater by the growth of microbes in aeration tanks. In other words it is flocculated sludge of micro-organisms.
- Advanced primary treatment:
-
Primary treatment using additives before treatment to augment settling.
- Aeration:
-
The process of adding air to water.
- Aerobic processes:
-
Biological treatment processes in the presence of oxygen.
- Aqua-privy:
-
Watertight tank placed immediately below the latrine floor where excreta drop directly into the water tank through a pipe.
- Algae:
-
Variety of plant without distinct functional plant tissue.
- Algal bloom:
-
Increase in algae population in water.
- Alkalinity:
-
A measure of a substance's ability to neutralize acid.
- Alumina:
-
Synthetically produced aluminium oxide that is used as a starting material for the production of aluminium metal.
- Anaerobic processes:
-
Biological treatment processes that occur in the absence of oxygen.
- Anoxic denitrification:
-
This process is also known as anaerobic denitrification. In this process nitrate nitrogen is converted to nitrogen gas biologically in the absence of oxygen.
- Aquifer:
-
Water stored in the saturated zone below the water table.
- Attached-growth processes:
-
The biological treatment processes in which the microbes are attached to media.
- Autotroph:
-
Organism that uses carbon dioxide as the only carbon source.
- Backflow prevention:
-
Preventing the reverse flow of water in water supply ...
Get Sustainable Water Engineering: Theory and Practice now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.