Which of the following is not the method of disposal of sewage from septic tank?
(a) Upflow anaerobic filter
(b) Soil absorption system
(c) Vacuum filter
(d) Biological filters
This question was posed to me during an online interview.
I want to ask this question from Construction of Septic Tank topic in portion Solid Waste Management, Aerobic & Anaerobic Stabilization Units of Environmental Engineering