Page 423 - Solid Waste Analysis and Minimization a Systems Approach

CASE STUDY 401

■ Clearly label the recycling bins and waste containers on site.
■ Post lists of recyclable and nonrecyclable materials.
■ Conduct regular site visits to verify that bins are not contaminated.

If contamination cannot be avoided, washing machines can be purchased to remove
contaminates, or a recycling vendor can be hired who has the means to clean the recy-
clable materials. The downside of utilizing a vendor to wash parts is an additional cost.
A cost comparison and break-even analysis should be performed to determine if hiring
a vendor or completing the work in-house is more cost-effective.

30.5 Implementation and Approach

In implementing solid waste minimization strategies, the first step is to identify poten-
tial haulers and recyclers to handle the designated materials. They often serve as valu-
able partners in the process. Obtain and retain verification records (waste hauler
receipts and waste management reports) to confirm that diverted materials have been
recycled or diverted as intended.

30.6 Case Study

In 2002, The University of Toledo Waste Minimization Team conducted a solid waste
audit at a large oil refinery located in the Midwest. The company’s management was
interested in expanding and improving their recycling program. The recyclable waste
generated at the company included office paper, newspapers, aluminum cans, plastic
containers, and cardboard. At the time of the audit, the facility had small recycling
programs in place for cardboard and office paper and utilized a separate waste con-
tainer for storage.
The company operates 365 days a year and there were 550 employees. Results from
the audit indicated that the company produced 150 tons of solid waste that was dis-
posed of in 12 dumpsters located within the facility. The monthly solid waste hauling
cost was $13,200.
After analyzing the overall waste stream, the Waste Assessment Team determined
the major waste streams by weight. These waste streams and their subsequent gener-
ation are shown in Table 30.2 and Fig. 30.1. Table 30.3 and Fig. 30.2 display the major
waste streams by volume and the estimated percentage volume of recyclable waste
streams.
Based upon the implementation of recycling key components in the waste
stream, Table 30.4 represents an analysis of the potential savings. These savings
reflect potential revenue, which may be generated by the sale of the recyclable
materials.