Abstract: Discharge coefficients for water flow through a vertical, circular orifice at the bottom of a conical hopper were experimentally studied in the present paper. The conical hopper consists of a cylindrical hopper of inside ...

Abstract: The onsite wastewater treatment system (OWTS) with a sand trench is an economical option for residents in rural areas or the countryside where a centralized sewer system is inaccessible. The 2A sand achieves improved ...