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- W2190404038 abstract "Food skimmings from DAF (dissolved air flotation) units are major waste materials from foodprocesses such as meat and milk processing and waste water treatment plants. These materialsare paste and oily. Land application of skimmings alone or mixture with other by-products forcooking are used currently. Land application potentially cause pollution problems to land, waterand air. The mixture and cook with other by-products affect the quality of the final protein andfat by-products. The skimmings have only 10-20 % solid. The dry cost is high for the cookingprocess. These two current processes are not economically feasible methods. DAF skimmings have nutritional value with fat, protein, and carbohydrate. A new recoveryprocess has been developed to convert DAF skimmings into usable complex products at lowerprocessing than is presently practiced. A typical complex product from animal meat DAFskimmings in dry form has fat 38 %, crude protein 49 %, ash 3 %, moisture 6 %, fiber 1 %,alanine 3.9 %, aspartic acid 4.8 %, glutamic acid 6.4 %, lysine 4.3 %, leucine 5.9 % and valine3.7 %. The pepsin digestible protein is 94 %. This new process can convert the nutrients in DAFskimmings to feed and fertilizer ingredients. The dry processing cost can be reduced because thesolid level is increased significantly by mechanical methods before the drying process. Also afterthe skimmings are removed, the values of BOD, COD, FOG and TKN in waste water aredecreased after the process. A convenient process includes the following steps: (1) to convertDAF skimmings into a fat complex product, which has no oily physical characteristics; (2) toincrease the solid level by mechanical squeezing methods and (3) to dry the product or to blendwith other by-products such as feather meal or meat and bone meal. This new process provide aneconomic solution to resolve the problems related to food DAF skimmings." @default.
- W2190404038 created "2016-06-24" @default.
- W2190404038 creator A5001820251 @default.
- W2190404038 date "2013-11-14" @default.
- W2190404038 modified "2023-09-24" @default.
- W2190404038 title "RECOVERY PROCESS FOR FOOD SKIMMINGS FROM DISSOLVED AIR FLOTATION UNITS" @default.
- W2190404038 doi "https://doi.org/10.13031/2013.15256" @default.
- W2190404038 hasPublicationYear "2013" @default.
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