Apparatus for aerating water

摘要

Water clarifying apparatus has a cylindrical tank where particulate contaminants suspended in raw water are separated using flotation techniques. The treatment capacity of such a unit is increased by using a set of concentric, mutually spaced, conical plates positioned in the flotation tank. The apparatus utilizes air dissolving tubes operating in parallel that have common feeds and discharges coupled through three way valves operated to pressurize a closed volume of water with high pressure air in one tube while reloading and discharging the other tube.