Problems with Fat, Oil, and Grease (FOG) in Food Industry Wastewaters and Recovered FOG Recycling Methods Using Anaerobic Co-Digestion: A Short Review

Abstract:

Food production industry is the main producer of wastewaters with high fat, oil, and grease (FOG) content. FOG waste can be recovered from the wastewater stream by using physicochemical methods and reused considering their high methane potential. Popular method of FOG reuse is anaerobic co-digestion (AcoD) with wastewater treatment sludge and scum from the primary wastewater sedimentation tanks. This short review focuses on understanding the efficiency of FOG reuse possibilities by AcoD and takes a closer look at problems connected to degradation issues, gives an understanding on microbial changes during FOG degradation, and reviews enzymes involved in the degradation process.

• Periodical: Key Engineering Materials (Volume 762)
• Pages: 61-68
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.762.61
• Online since: February 2018
• Authors: Elvis Klaucans*, Karlis Sams
• Keywords: Anaerobic Codigestion, Enzyme Usage in Biodegradation, FAT, Fog, Food Processing Wastewater, Grease, Oil

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