The process of removal of water from the sludge is called ______
(a) Dewatering
(b) Thickening
(c) Digestion
(d) Drying
I had been asked this question by my college professor while I was bunking the class.
I want to ask this question from Mechanical Aeration System, Treatment of Sludge topic in section Sewage Filtration and Activated Sludge Process of Environmental Engineering