Effect of Water Level and Falling Time in Vacuum Chamber on Turbidity Removal Efficiency for Water Treatment by Sludge Blanket Clarifier
Keywords:
Sludge blanket clarifier, turbidity removal efficiencyAbstract
This paper aims to study effect of water level and falling time of vacuum chamber on turbidity removal efficiency for water treatment plant by sludge blanket clarifier. By controlling aluminum sulphate adding rate, 22-mg/l., and surface loading rate, 3.22-m/hr., the results were compare turbidity removal efficiency of water level at 30, 40 and 50 centimeters and falling time at 10, 15 and 20 seconds. Experimental found that water level was not significantly but falling time was significantly affected on turbidity removal efficiency for sludge blanket clarifier. A 15-second of falling time provided higher efficiency than a 10-second and a 20-second of falling time. All Turbidity removal efficiency of a 15-second of falling time was 87.37±1.47%, 87.66±1.27% and 87.26±1.69% for a 30-centimeter, a 40-centimeter and a 50-centimeter of water level, respectively. And, interacted water level and falling time (pulsation rate) was not significantly.
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