Evaluation of state and evolution of marine fish waste composting by enzyme activities
- 1 May 2017
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Civil Engineering
- Vol. 44 (5) , 348-357
Abstract
The feasibility of using enzyme activities for indicating the state of marine fish waste composting was examined in this study and the evolution of the composting process for a 60 day period was evaluated. Results indicated that stable and mature fish waste compost has been generated. During the composting process, oxidoreductase enzyme (dehydrogenase) and hydrolase enzyme (β-glucosidase and phosphatase) activities decreased with time since available organic compounds decreased. A good correlation among enzyme activities and different physiochemical parameters including oxygen uptake rate, carbon/nitrogen ratio, and germination index led to the conclusion that both hydrolytic and dehydrogenase enzyme activities could be feasible indicators of the state and evolution of the composting process.Keywords
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