vegetable oil refinery system in mali

                                               
                                               
                                               
                                               
                                               
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  • Which industrial technologies are used for vegetable oils' refining?
  • The present review aimed at comparing the two main industrial technologies used for vegetable oils¡¯ refining, namely, chemical refining and physical refining. Chemical refining removes free fatty acids by soda neutralization.
  • What is vegetable oil refining?
  • As vegetable oil is an important component of the human diet, the source and the processing play an important role in consumer acceptability. To remove impurities that affect the color, palatability, stability, and safety of oil, crude vegetable oil must be refined. This review highlights the processes and steps used in vegetable oil refining.
  • Is Physical refining better than chemical refining for vegetable oil?
  • The effects of process conditions on standard quality parameters and the nutritional quality of the oil are well documented in the literature [5, 19, 71, 72]. In conclusion, physical refining offers great several advantages over chemical refining for vegetable oils (Table 2).
  • Do vegetable oils need to be refined?
  • Crude vegetable oils require refining before they are consumed. The refining process removes as well as reduces the impurities present in the crude oil. Vegetable oil refining technology offers sophisticated equipment.
  • Are vegetable oil refinery wastewaters biodegradable?
  • The BOD 5 /COD ratios of the factory wastewaters are 0.15 and 0.2 for corn oil and sunflower oil refining wastewaters . Aslan et al. investigated the biodegradability of vegetable oil refinery wastewaters and concluded that they have a low BOD 5 /COD ratio and that these wastewaters cannot be treated only by biological treatment.
  • How does refining a vegetable oil produce wastewater?
  • The refining of crude vegetable oils generates large amounts of wastewater. The neutralization step, in particular, produces sodium salts of free fatty acids (soap-stocks) which breaks down through the use of H 2 SO 4 and generates highly acidic and oily wastewater .