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One of the producers of the millions of tons of paper for printing and packaging, the
pulp mill ranks among the worst polluters of air and water.ln the past few years, under the pressure of public concern and stiffer regulations, progress has been made in
reducing pulp mill effluents.
creased paper production, resulting in an overall rise in the amount of wastes
produced during production and consequently putting a greater burden on
waste treatment measures. Gross waste loads in the U.S. pulp and paper
in—
dustry are shown below for 1968, 1972, and as projected for 1977 {based on
wastes produced per
ton of_product before waste treatment) [29].
Gross
Suspended
Dissolved'
Total
Wastewater Quantîties
Waste
Solids*
Solids*
Solids*
BOD*
(billions of gallons)
1968
2.82
11.1
13.8
2.71
930
1972
3.03
11.8
14.8
2.91
990
1977
3.50
12.9
16.3
3.21
1050
“In billions of pounds.
-
'
Waste Controls
105