Composting Fish By-Products: A Feasibility Study

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This publication presents an in-depth project conducted by Woods End for the Time&Tide Resource Conservation District (Waldoboro, ME) in which fishery wastes such as gurry, shellfish, crab, lobsters and herring were for the first time composted in pilot windrow and static-pile processes. “The outcome may well have been the first successful deployment of large scale fish composting in America” – leading to efforts by Woods End to compost fish waste from Cape Canaveral, FL, to Vancouver, BC.

Based on innovative research and demonstration, the report details the wastes resulting from the fish-processing industry, and presents a technical scheme for combination with carbonaceous materials to achieve suitable composting conditions. An extensive review of equipment and costs involved in composting is appended to the report.

The discussion is supplemented by tables on the characteristics and nutrient contents of composts, cost/benift analysis and equipment, and includes graphs of composting temperatures plus photographs of the project. There is also an appendix with technical references.