Wytewater Technologies Pvt Ltd.
 The conventional method for cyanide reduction in effluents is alkaline chlorination, which requires the process to be maintained at alkaline pH, to prevent formation of highly toxic cyanogen chloride gas. Besides this, the appearance of precipitate upon addition of metal salts to wastewater containing cyanides, gives no assurance that toxic complex cyanides have been eliminated.
 Chlorination does not oxidize iron cyanides to any degree, whereas other metal cyanides such as nickel, cobalt etc require more time and significant chlorine excess.
    Photochemical oxidation overcomes the problem of conventional treatment and delivers consistent output quality without any toxic by-products.
    In addition, photochemical oxidation eliminates the fear of acidification of cyanide effluent by human error, thereby liberating cyanide, making the process safe and environment friendly.  

    The major source of effluent in chilling centers is water from vessel, can & tanker washings. Traditionally chilling centers are used as transit points enroute to place of distribution, where the milk is stored after pasteurization (Which is normally done in dairies) The effluent generated by chilling centers is neither continuous nor consistent in its quality - two factors important for efficient operation of a conventional treatment process.
    Photochemical oxidation for chilling center effluent treatment has the following advantages,
 Is independent of the frequency of effluent generation. 
 Occupies lesser space, when compared to conventional treatment process.
 Disinfected effluent available for recycling and reuse.
 Process does not generate offensive odor.
 An effective alternate for small and inconsistent effluent volumes but higher concentration of organic       contaminants.

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