Cost-Effectiveness of Converting Fish Waste into Liquid Fertilizer

  • Kim, Joong-Kyun (Department of Biotechnology and Bioengineering, Pukyong National University)
  • Received : 2011.05.12
  • Accepted : 2011.08.11
  • Published : 2011.09.30


To determine the cost-effectiveness of converting fish waste into liquid fertilizer, this study analyzed the production of 3 L of liquid fertilizer from the fermentation of fish waste. The total product cost of the fertilizer was calculated to be $165.26 for a one-batch operation. If the seed culture was repeated five times, the total product cost could be reduced to $36.39/L. According to this analysis, the reutilization of fish waste as liquid fertilizer was not particularly economically attractive at present, and plant-scale production would be necessary for commercialization. This is the first cost-effectiveness analysis of the bioconversion of fish waste into liquid fertilizer.


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