D and E only please will upvote

1. A surface water with the constituents in the table below has a pH of 8.1 and dissolved CO2 concentration of 1.1105M. The flow rate required for drinking water treatment to serve the .. thn witar tamnerature is 18C. Use this informaiton for parts a-e. a. Defermon itis.- b. calctw removal (i. d. A mechanical rapid-mix tank is to be designed to add this alum with a detention time of 10sec and a velocity gradient of 700sec1. Determine the tank volume and power requirement. The dynamic viscosity at 18C is 1.053103Nsec/m2. e. Particles resulting from the alum addition result in an average size of 100m diameter and a specific gravity of 1.05 . Calculate the settling velocity if the density of water at 18C is 998.6kg/m3 and determine the percent removal of these particles in a sedimentation basin with a depth of 2.5m, width of 4m, and length of 40m. pH=8.1Q=1MGD=3785.41m3/dayCo2=1.1105MT=18c Al2(SO4)3.18H2O+3Ca(HCO3)22Al(OH)3+3CasO4+6CO2+18H2O 1mole3mole 666gm486gm (300gmas Caco 3Alk) 1gm 0.45gm alk as Caca needed (a) amount of alk.consumed amount of alum required daily =15378.4103mg/ day =56.78106mg/day 1gm alum need 0.45gm Alk as CaCO3 56.78106mg/day 1gm alum need 0.4556.78106mg/ day 56.78106mg/day0.4556.78106mg/day alk (b) Amount of alk remaining =906.75 Alk =83.25mg/lt (c) Amount of alum required =56.78kg/day =56.78365kg/yr Alum =20724.7kg/yr