1993), 93 ships currently are equipped with 107 incinerators (103 with a capacity of 500 lb/h and 4 with a capacity of 250 lb/h). These units can burn paper, cardboard, incidental plastics, oily rags, food-contaminated containers, and containers contaminated by oil and paint. Approximately 70 percent of the total burnable waste is generated on ships with incinerators and could be burned. The Navy could install an automated feed system in the existing incinerators. The new feed system would feed solid wastes at the design rate of the incinerator and provide safe operation without overheating. At about $100,000 per incinerator, the total procurement cost would be about $11 million and is estimated to be achievable in 3 years.
In addition, incinerators similar to those now in service could be installed on those auxiliary and amphibious ships that do not now have incinerators. From 12 to 30 such ships will remain in commission after 1998, implying a cost of $3 million to $8 million based on a unit cost of $250,000, including automatic feed. This is estimated to be achievable in 5 years.
The remaining solid waste generated on smaller ships that have no incinerator (e.g., cruisers, destroyers, and so on) could be transferred to ships having incinerators for destruction. To facilitate this process, the Navy would need to design and supply to all ships a standard solid-waste-transfer container that is large enough to hold approximately 1 or 2 days' solid waste. The design should be lightweight and collapsible and used to transfer waste by Burton Rig or helicopter. There are about 200 of these smaller ships and, assuming each will receive five containers, at about $1,000 each, the total cost would be of the order of $1 million. This plan could be implemented in a relatively short time.