New York/ New Jersey Harbor: Alternative Methods for Ex ... - CLU-IN

of dollars per ton. The market price for rock wool is roughly $200 per ton. The price and
market for aggregates, solar glass and roofing granules has not been researched.
Due to the fact that Westinghouse could produce a variety of products from the molten
glass product, the beneficial-use product price is difficult to determine. According to
Westinghouse estimates, the range of revenue generated by the sale of the end-use
product may vary from $7 to $180 per cubic yard (Westinghouse, 12-17). The processing
cost per cubic yard of contaminated sediment is approximated to be between $99 to $126.
The processing cost depends on several factors including the level of contamination of
the sediment and the variable costs associated with building a new processing plant. For
economic analysis, the averages of the upper and lower bounds of the processing costs
and end-use product price were used for simplicity sake. Consequently, the estimated
beneficial use product price is approximately $93.50 per cubic yard. One must also take
into account that the dredged sediment is approximately 50% water, which is not used in
the manufacturing of the final product. As a result, two cubic yards of contaminated
sediment are used to make one cubic yard of product. Therefore, the revenue generated
by the sale of the beneficial use product per cubic yard of contaminated sediment is about
$47 per cubic yard.
Figure 5: Economic Analysis of the Westinghouse Process
Cost/Credit
(per yd 3 of dredged sediment)
Tipping Fee +$35
Processing Cost -$112.5
End-use Product Price +$47
Net Profit/Loss -$3
As shown in Figure 5, Westinghouse would lose roughly $3 per cubic yard of
contaminated sediment processed. According to the range of costs and product prices,
this number could vary from approximately -$87.5 to $26 per cubic yard of dredged
sediment.
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