Specific Applications
Molasses based Distilleries all over the world generate large amount of effluent termed as spent wash or vinasse. For each liter of alcohol produced, around 8 liters of effluent is generated. This effluent has COD of 1,50,000 PPM and BOD of 60,000 PPM and even more. This effluent needs to be treated and the only effective method for conclusive disposal is by Composting.
Sugar Factories generate pressmud / cachaza during the process and the same has about 30% fibers as Carbon and has large amounts of water. This pressmud is dumped on prepared land in the form of 100 meters long windrows of 3 meters x 1.5 meters and spent wash is sprayed on the windrow while the windrow is being turned. Composting machines called Windrow King, Windrow Prince and Windrow Queen are used for this applications (these are names from one of the hundreds companies that exist in the world). These machines help consume spent wash of about 2.5 times of the volume of the pressmud, which means that a 100 meters of windrow accommodates about 166 MT of pressmud and uses about 415 m³ of Spent wash in 50 days.
Microbial Culture TRIO COM-CULT is used about 1 kg per MT of pressmud for fast de-composing of the spent wash. Lakhs (Indian term for 100,000) of m3 of spent wash is being composted all over the world in countries like India, Colombia, Brazil, Thailand, Indonesia, South Africa etc.
Composting machines Windrow King/Prince/Queen of various capacities of 336 HP, 153 HP and 80 Hp are being used all over the world for this application round the clock. The technology of composting spent wash / Vinasse is called TAS BIO-COM. The compost yard has to be prepared as per the norms of local countries however it has to be prepared in such a way that the land is impervious and does not allow the liquid effluent to pass down into the earth. The compost thus generated, is of excellent quality and is rich in nutrients and it takes care of balance of nature. The products derived from nature go back to nature.
Read more about this topic: Windrow Composting
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