The minimum hydraulic loading of percolating filter is ___________
(a) 1 m^3/m^2/day
(b) 2 m^3/m^2/day
(c) 3 m^3/m^2/day
(d) 4 m^3/m^2/day
This question was posed to me during an interview.
Question is from Conventional Trickling Filter topic in division Sewage Filtration and Activated Sludge Process of Environmental Engineering