Determine the liquid alum (aluminum sulfate) volume to precipitate phosphorus from a wastewater containing 6 mg/L TP. The following data describe data for the chemical precipitation of the phosphorus: Influent flow rate Liquid alum formula Alum strength Density of liquid alum solution Density of water Weight of water Molecular weight of alum Molecular weight of aluminum Molecular weight of phosphorus Theoretical dose Jar testing showed actual dose = 2 mgd = Al2(SO4)3.18HO = 48% = 78 lb/ft = 62.4 lb/ft = 8.34 lb/gal = 666.7 = 26.98 = 30.97 = 1 mole of Al per mole of P = 1.35 mole of Al per mole of P Recommended approach: (i) Calculate the weight of Al available per gallon of liquid alum marks) (ii) Calculate the weight of Al required per unit weight of P (iii) Determine the amount of alum solution required per lb P (iv) Determine the amount of alum solution required per day (5 (3 marks) (3 marks) (3 marks)