In this study aerobic MBRs operating at room temperature (20 degrees C) and at lower thermophilic range (45 degrees C) were investigated for the treatment of dissolved air flotation (DAF) pretreated pet food wastewater. ![]() Kurian, R Acharya, C Nakhla, G Bassi, AĪlthough thermophilic treatment systems have recently gained considerable interest, limited information exists on the comparative performances of membrane-coupled bioreactors (MBR) at thermophilic and conventional conditions. © 2014 Society of Chemical Industry.Ĭonventional and thermophilic aerobic treatability of high strength oily pet food wastewater using membrane-coupled bioreactors. This mini-review addresses current pet food sensory analysis literature and discusses future challenges and possibilities. Funding opportunities for pet food studies would increase research and publications and this would help raise public awareness of pet food related issues. Most pet food flavor research is proprietary and, thus, there are a limited number of publications available. Furthermore, sensory analysis may be combined with other types of information such as personality and environment factors to increase understanding of acceptable pet foods. Sensory analysis of pet foods provides additional information on reasons behind palatable and unpalatable foods as pets lack linguistic capabilities. Sensory analysis of pet foods may be conducted by humans via descriptive or hedonic analysis, pets via acceptance or preference tests, and through a number of instrumental analysis methods. Pet food palatability depends first and foremost on the pet and is related to the pet food sensory properties such as aroma, texture and flavor. This study shows the potential of immobilized lipase as a pre-treatment step in biological treatment of pet food manufacturing wastewater. During the 3-day experiment, approximately 65% of the beads were recovered and after the hydrolysis, approximately 70% of the enzyme activity remained in the beads. The immobilized lipase activity was confirmed with p-nitrophenyl palmitate (pNPP) before and after O&G hydrolysis. A significant increment in COD and VFA production was also observed. Results showed that approximately 50% of the O&G was hydrolyzed due to the enzyme activity. Candida rugosa lipase was immobilized in calcium alginate beads and applied in the hydrolysis experiment. In this study, the hydrolysis of O&G originating from pet food industrial wastewater was evaluated. Wastewaters generating from pet food industries contain high concentration of oil and grease (O&G), which is difficult to treat through conventional biological treatment systems. Jeganathan, Jeganaesan Bassi, Amarjeet Nakhla, George Pre-treatment of high oil and grease pet food industrial wastewaters using immobilized lipase hydrolyzation.
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