usec Eme as a coagulant aid at a water treatment plant. The specific gravity of the floc and adhered sus- pended material is 1.005 at a temperature of 10°C. Determine: a The overflow rate in m³'d-mn if the fiow is 26,500 mid and the clarifier is 18.29 m by 36.57 m. & The settling rate in cm/s for the overflow rate in part (a).

How long would it take for chloride to be detected just outside the clay liner at the secondary MCL of 250mg/L? Assume diffusion is the only mechanism

The bed thickness of a speed sand filter is 1.3 m. A sand with a specific diameter of 0.8 mm and a specific gravity of 2600 kg / m3 will be used as filter material. The shape factor of the sand is 0.9 and the porosity of the clean bed is 0.45. The water layer thickness on the bed is 1.1 m. Average filtration speed is 130 m / day and maximum filtration speed is 180 m / day. The maximum flow rate is 24087 m3 / day and the kinematic viscosity of water is 1.01x10-6 m2 / sec. The maximum head loss in the filter is required to be 1.9 m and negative pressure is not allowed. a) Find the initial head loss of the filter bed. b) Find the required number of filters and the area of each filter in case 3 filters are in reserve. c) Calculate how many meters depth the pollution penetrates at the end of filtration.

Q. Solve this seepage problem.