Analysis of Vinasse Sketch in Sugar Factories

5 % of beet that used in the sugar industries has been changed in to molasse. Molasse is full of organic and inorganic material and it is included of high rich sugar. In Iran, some of this sugar is obtaining with the steffen method, but the waste water is produced within this method has very high PH, BOD, and more over of lime; it has sugar and non-sugar materials which is in molasse. In addition, it is included of organic and inorganic compounds and N2. When the waste water of the sugar industry has been evacuated in to environment without any purification operation, it will putrefy, biologically and its alkali nature has been decayed soon.So that various compounds with unpleasant smells have been generated.For the result, to prevent of evacuation pollution, in to the environment, when it isnt concentrated (Vinasse), first we must purify it biologically. In this case, for high-rich pollution, it is required to invest a large capital, although with using of vinasse method, not only the waste water can be omitted, but also we can recovery all of the organic and inorganic materials to have rich factory refuse.In this paper, necessity of the vinasse method for environmental pollution and engineering problems have been reviewed.