Project Overview Reliance had an additional requirement of 110 m 3 /hr of wa- ter for cooling tower make-up and horticulture with TDS levels <1000 mg/l and with a Na/TC ratio of about 40%. They required that this be produced by recycling of treated waste water from HTDS ETP and Cooling Tower blowdown from CT 4 . These effluents are rich in TDS, TSS, TOC, ammoni - cal nitrogen, oil & grease etc. with potentially high variation in critical par

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