Waste Disposal Planning Using
Consultant's Services
at American Cyanamid's Bridgeville
Pennsylvania Plant
ROGER W. LOVELESS, Chief of Sanitary Engineering Design
JOHN R. ATKINS, Project Engineer
Alden E. Stilson & Associates, Limited
Columbus, Ohio
American Cyanamid's Bridgeville, Pennsylvania plant is located approximately 12 mi southeast of Pittsburgh. Principal products are phthalic anhydride made from naphthalene, maleic anhydride made from benzene, coating
resins, polyester resins, esters and wetting agents. End uses of the anhydride
products and coating resins are in the paint industry. End uses of the polyester
resins are in reinforced plastics, such as plastic boats. The esters are mainly
used in the Malathion insecticide, and the wetting agents of the sulfo-suc-
cinate type in various fields such as emulsion polymerization, floor waxes,
etc.
The production facilities are situated in Allegheny County on a site located between Millers Run and Chartiers Creek. Chartiers Creek flows into
the Ohio River upstream from the new Allegheny Counth Sanitary Authortiy
Treatment Plant. American Cyanamid recognized its responsibility early in
the prevention and abatement of stream pollution and started general planning
toward finding a solution to the Bridgeville Plant's effluent problems.
During the early planning stages, American Cyanamid Company made
certain basic administrative decisions about the development of a planning
program for disposal of the Bridgeville wastes.
They contracted with the Allegheny County Sanitary Authority to accept
pretreated wastes from the Bridgeville Plant. Consulting engineers were employed to conduct waste surveys, prepare detail designs, cost estimates and
provide consultation during construction and initial operation. Technical assistance on the project was provided from advisors and specialists within American Cyanamid's Engineering and Construction Division staff who worked with
Bridgeville Plant personnel and the consulting engineering firm in solving the
problem.
CONTRACT WITH THE SANITARY AUTHORITY
The schedule of charges for wastes accepted by the authority are based
upon volume with a surcharge being added for extremes above pre-established
norms.
These surcharges are computed by the following formulas:
For extremes of suspended solids and BOD
0.75(SS-275)      0.25(BOD-300)
Surcharge Factor F = 1 + 0.15 275 + 300
For extremes in Chlorine Demand
Surcharge rate in cents/1000 gal Rc = 0.00835 Pc (C-5)
where Pc = Purchase price of chlorine
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