Lowering the incineration temperature of fishery waste to optimize the thermal decomposition of shells and spines

  • Hidekazu Kobatake
  • Shinji KiriharaEmail author
Original Article Environment


A part of fishery waste, such as scallop or oyster shells, are utilized for fertilizer, feed, soil conditioner, or fishing ground preparations, and most of the shells from aquaculture residue are incinerated as general waste at or above 1000 °C. This incineration requires a huge amount of fuel and cost. To utilize the products obtained by the processing, such as calcium oxide for heat storage materials, deodorants, or fungicide, lowering the incineration temperature is indispensable for cost reduction. In this research, we examined the possibility of lowering the incineration temperature. The thermal decomposition temperature of shells and spines can be lower than that of calcite reagent. This difference could be caused by the microstructures of the shells and spines. Adjustment of the particle size of shells during the firing can further reduce the reaction temperature and fuel needed.


Fisheries waste Shell Thermal decomposition 


Supplementary material

12562_2019_1292_MOESM1_ESM.docx (15 kb)
Supplementary material 1 (DOCX 14 kb)


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Copyright information

© Japanese Society of Fisheries Science 2019

Authors and Affiliations

  1. 1.Institute of Regional Innovation, Hirosaki UniversityAomoriJapan

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