Nicaragua vegetable oil refinery

Refining Vegetable Oils: Chemical and Physical Refining

  • Nicaragua vegetable oil refinery
  • Nicaragua vegetable oil refinery
  • Nicaragua vegetable oil refinery
  • Nicaragua vegetable oil refinery

Advances in Treatment of Vegetable Oil Refining Wastes

A Review on Vegetable Oil Refining: Process,

Hydrotreatment of vegetable oils: A review of the

Edible Oil Refining: Current and Future Technologies

  • What is vegetable oil refining?
  • Crude vegetable oil obtained at these facilities is then transferred to a refining facility where it is prepared for human consumption or prepared for use in animal feeds. Refining of edible oil is a process where free fatty acids are volatilized, condensed, and recovered simultaneously with vacuum decoloring operation.
  • 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 .
  • 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.
  • Why is sulfuric acid decomposed during vegetable oil refining?
  • The reason for this is due to that during vegetable oil refining effluents at neutralization stage of soap-stock are decomposed with sulfuric acid for the production of acid oil. The chemical equation for this reaction is given in Eq. 8.2.

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