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What else can I help you with?
Is there any chance to make demineralised water with out activated carbon treatment?
Reverse osmois and distillation will also give you pure water.
Why osmosis is a type of diffusion?
Because it is the movement of molecules from areas of high concentration to areas of low concentration in the direction of the concentration gradient. Osmois specifically implies the diffusion of water.
In which direction does osmosis occur?
Osmois is the continual movement of water from a higher solution of water content through a semipermeable membrane into a solution of lower water content. Therefore, ososis occurs in a downward direction from higher to lower water content.
How do you treat spent wash of distillary by reverse osmosis?
Spentwash is an effluent created by fermentation of sugar cane molasses to produce alcohol. It is also called dunder or vinasse. It has very high BOD & COD & it is difficult to dispose. Its volume can be reduced to minimum 50% by application of reverse osmois (RO) using special type of disc tube or plate tube membranes technology. It extracts colorless water form spentwash, which can be resued in mmolasses fermentation. The balance concentrated spentwash can either be composted or by mixing with biomass can be incinerated to achieve zero liquid discharge as desired by pollution control authorities. Rochem Separations Systems (I)P Ltd. has about sixty successful RO units processing spentwash for past several years in India, Mexico, Vietnam etc. This company also offers a technology to further concentrate the balance spentwash & gasify the same to achieve zero liquid discharge. ---Dr. H. M. Modak
