Glossary
A
Abatement To minimize the intensity of pollution through reuse or waste treatment.
Acid rain Precipitation (rain, snow fall, hail storm etc.) having pH less than 5.6.
Activated sludge A sewage treatment process in which the aerobic bacteria are continuously circulated and put in contact with biodegradable waste to increase the rate of decomposition of the waste.
Adaptation Process of adjustment of an organism in a set of habitat conditions different from its own.
Adsorption Process of accumulation of a gas or liquid particles on the surface of a solid or a liquid (adsorbent) forming a film of molecules or atoms. This process is oft en used for the removal of pollutants. Activated carbon, silica gel and alumina are used as adsorbent ...
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