An non-VFA wastewater is to be treated using UASB process at 25 degrees Celsius .

Calculate the bsCOD loading rate (Lorg, kg sCOD/m3 d) for 3 different hydraulics detention times(3, 7, 15 hours).

Flow (m^3/d): 511

bCOD influent (g/m^3): 2000

bpCOD influent: 9%

TSS influent (g/m^3): 150

Reactor volume effectiveness factor = 85% Reactor is cylindrical shape 94% of sCOD will be degraded 51% pCOD degradation Methane production at 25oC = 0.387 L CH4/g COD

Temperature 25oC, Volumetric Loading, kg sCOD/m^3.d = 4