The city of Conroe is planning the installation of a new water treatment plant to supply a growing population. There will be only one rapid mixing basin and then the flow will be evenly split between two flocculator trains, each with three basins equal in volume. The required water depth of all basin is 4.0 m. Determine: a) basin volumes, (5 points) b) basin dimentions, (6 points) c) tank equivalent diameter, (6 points) d) required imput power, (6 points) e) impeller diameter from table below, (6 points) and f) rotational speed using the following parameters, (6 points) Q=11.5*10 m/d Rapid mix t = 2 min Based on pilot studies, the rapid mix t = 2 min. to remove color and natural organic matter Rapid mix G= 600 s Total flocculation t = 30 min. Flocculators G = 70, 50,30 s Water Temperature=5 C Place impeller at one-third the water depth It's common practice to make the length and width of mixing basins equal. Impeller type Radial Axial Impeller diameters (m) 0.8 1.1 1.4 0.8 1.4 2.0 Power number (N.) 5.7 0.31