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  1. andredd

    BA AND CA SULPHATES REMOVAL BEFORE RO ??

    hello everybody...! i m asked by a client to recover with RO 80% of a water coming from DMF backwash + demi plant regeneration effluents (after neutralization). This water has a lot of sulphates (5000 ppm) and calcium (1250 ppm), some magnesium (550 ppm) and barium (0,5 ppm). The RO design guy...

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