In their report in this issue (p. 70), authors Michaela Archer and David Baldwin provide details on trials for composting and utilizing seafood feedstocks. They also prepared data on costs when disposal fees are about $70 to $100/ton (�400 -�60). It was estimated that $1.7 million would be the price for a 10,000 ton/year in-vessel facility with production costs per ton at $85. (A British pound (�) is equal to $1.73 U.S. dollars.) Archer and Baldwin wrote:
"Current sales prices for compost vary significantly depending on the intended market and quality of the finished product. Low grade, bulk uses such as land reclamation may pay up to �5/t while topsoil values can reach �40/t. The production of an added value, high quality or organically certified compost would add to these prices but this would have to be offset by the additional costs of improving management of the feedstocks and process.
"Given the costs of other waste disposal routes, it is considered that composting could provide a cost-effective route for seafood by-products. However with the low value for composted seafood by-products (�50 -�40/t at current prices), the potential for gaining revenue/profit appears limited without adding value to compost in some way. A partnership between seafood and waste management industries may help to reduce these costs."
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