? SUMMARYHM2 (YHPP/YHPV series) FILTER SYSTEM, which is a water treatment system with high efficiency, multi function and multi purpose, can apply various membrane materials and pore sizes with treatment purposes, and the system shows excellent treatment efficiency and is very compact because of integration of various processes (coagulation, precipitation, flotation, filtration and sterilization) into the one reactor. And filtration pressure of this system does not increase even though the lapse of operation time because it adopts the up-flow method by inflow induce pipe, and the...