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Aqueous Treatment
Aqueous treatment employs biological, physical
or chemical treatment methods to eliminate or reduce the hazards
of waste. In biological treatment, bacteria are used to digest
or break down organic matter through respiration and secretion
of enzymes. Physical treatment can be as simple as the dewatering
of sludges,
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or stabilization
of heavy metals by solidification. Chemical treatment can include
neutralization of alkaline or acid wastes, chemical precipitation
to remove solids, or chemical scrubbing to remove unwanted gasses.
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