Controlled tipping is used as a disposal method for which of the following?: (A) Sewage, (B) Sullage, (C) Refuse, (D) Human excreta
Answer is C. Controlled tipping or sanitary landfill is the most satisfactory method of refuse disposal when suitable land is available. 3 methods used in this are trench method, ramp method and area method. Composting is a method of combined disposal of refuse and night soil or sludge.