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Physical, Biological and Chemical Effects of Unsorted Fractions of Industrial Solid Waste in Waste Fuel Storage

Waste Management and Recovery, Department of Water Resources Engineering, P.O. Box 118, S-221 00 Lund, Sweden

Torleif Bramryd

Department of Ecology, University of Lund, Sölvegatan 3, S-223 62 Lund, Sweden

Ingrid Persson

Waste Management and Recovery, Department of Water Resources Engineering, P.O. Box 118, S-221 00 Lund, Sweden

Technical, biological and environmental problems encountered in the storage of industrial waste fuel are analysed and discussed. Measurements of temperature, moisture content, oxygen, methane and carbon dioxide during the storage period are presented. It is shown that the temperature increases rapidly to 70-90°C and the oxygen content decreases to almost zero in the lower parts of the storage pile. After several months of high but stable temperature conditions, self-ignition occurred in the storage piles. The test results are related to the proper design of storage piles.

Key Words: Energy • MSW • industrial • storage • calorific value • microbial • decomposition • pyrolysis • spontaneous combustion.

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