Chemistry Reference
In-Depth Information
METHODS OF POLLUTION CONTROL
1.
Reduction of effluent volume
: A first step. May require a combina-
tion of other control methods.
2.
Total elimination of effluent at the source
: The ultimate goal. Writ-
ten into some regulations.
3.
Water reuse
: Widely practiced now.
4.
Recovery and recycle of ingredients
: Better utilization of raw mate-
rials saves money, natural resources, and the environment.
5.
Recovery of secondary products for sale
: Requires commitment
and ingenuity.
6.
Physical separations
: The method that is filling up the landfills.
7.
Chemical treatment
: Widely practiced now. Will increase.
8.
Biological treatment
: Used in all sewage plants and many settling
ponds.
9.
Incineration
: The only practical method of disposal for some
wastes. Has opposition from many environmental groups.
10.
Dilution
: A widely used method of control in the past. Now unac-
ceptable under many regulations.
