C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/00 (2006.01) C02F 3/02 (2006.01) C02F 3/12 (2006.01) C02F 3/22 (2006.01)
Patent
CA 2188706
A process and apparatus for the biological purification of waste water. The process includes the steps of providing a reaction tank having microorganisms therein. The reaction tank has at least one vertically arranged guide pipe therein. The guide pipe has open upper and lower ends, and is positioned so that the lower end is located at a distance from a bottom of the reaction tank. The waste water and a gas are supplied to the reaction tank to form a mixture. The supplying step includes the step of supplying the waste water under pressure to the guide pipe at the upper end, and the step of supplying the gas separate from the waste water at at least two positions into the guide pipe. The at least two positions are located at different levels and at positions downstream of the upper end, relative to a flow direction of the waste water. The mixture of the waste water and the gas are moved in the reaction tank in a cycle that passes through the guide pipe. The apparatus provides for a device that can perform the process.
Ridout & Maybee Llp
Technische Consult Tecon Gmbh
Vogelpohl Alfons
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