Commercial aluminum sulfate (alum) reacts with natural alkalinity or with the chemicals of lime and soda ash if added to water deficient in alkalinity. Based on Eqs. 7-5, 7-6, and 7-7, calculate the milligram-per-liter amounts of alkalinity, lime as CaO, and soda ash as Na2CO3 that react with 1.0 mg/l of alum. l
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