Upward-flow manganese contact column

Details Upward-flow manganese contact column Upward-flow manganese contact column

2011-04-12

2011-04-12

Savage, Matthew O (Department: 1776)

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

Embedded baffle

C210S286000, C210S289000, C210S292000, C210S502100

Reexamination Certificate

active

07922904

ABSTRACT:
The present invention provides an upward-flow manganese contact column for feeding raw water to a manganese catalyst-packed layer through a plurality of dispersion nozzles provided at the upper surface of a chamber by forming the chamber for allowing raw water to flow in at the bottom of a column body into which a granular manganese catalyst is packed. Each dispersion nozzle has an umbrella portion above a perpendicular nozzle body, and the umbrella portion is configured so that the lower end of the umbrella portion is elongated below the upper end of the nozzle body. Raw water is supplied to the entire manganese catalyst-packed layer from the lower end of the umbrella portion of each dispersion nozzle. It is capable, of exhibiting stable treatment ability for a long time by suppressing particles of the manganese catalyst from being worn by collisions of the particles.

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