What is filter stage?
Single-stage unit consists of a primary settling tank, filter, secondary settling tank, and facilities for recirculation of the effluent. Two-stage filters consist of two filters in series with a primary settling tank, an intermediate settling tank which may be omitted in certain cases, and a final settling tank.
How to Calculate Efficiency of Second Filter Stage?
Efficiency of Second Filter Stage calculator uses Efficiency of Second Filter Stage = 100/(1+((0.0561/(1-Efficiency of First Filter Stage))*sqrt(BOD Loading to Filter 2/(Volume*Recirculation factor)))) to calculate the Efficiency of Second Filter Stage, The Efficiency of second filter stage is the capacity of the second filter to remove the waste from wastewater. Efficiency of Second Filter Stage is denoted by E2 symbol.
How to calculate Efficiency of Second Filter Stage using this online calculator? To use this online calculator for Efficiency of Second Filter Stage, enter Efficiency of First Filter Stage (E1), BOD Loading to Filter 2 (W'), Volume (VT) & Recirculation factor (F) and hit the calculate button. Here is how the Efficiency of Second Filter Stage calculation can be explained with given input values -> 100.0005 = 100/(1+((0.0561/(1-100))*sqrt(2.77777777777778E-05/(0.63*0.5)))).