Ngk Insulators, Inc.

Tsuyoshi Majima

Kazunari Yamada

Katsunosuke Hara

Saichi Yamada

Hideki Takeuchi

A column for low pressure-high speed liquid chromatography, including a column body being made of a transparent or translucent plastic and having a column chamber, said column body having one end opened and the other provided with an outflow opening, a pair of upstream and downstream filters for shutting a granular filler inside said column chamber, and a head portion being made of a plastic and detachably being fitted to said one open end of the column body and having an inflow through opening communicating with interior of said column body. A column device includes the column and a method for using the column device are also disclosed for low pressure-high speed liquid chromatography.

Column and column device for low pressure-high speed liquid

A pyrolysis process for treating sewage sludge containing chromium by burning combustible gas produced by thermal decomposition of the sewage sludge in a pyrolysis furnace by supplying oxygen of less than the theoretical amount necessary for burning the sewage sludge and keeping a partial pressure of oxygen in the furnace substantially at zero reduces the amount of hexavalent chromium remaining in the pyrolyzed residue to a harmless degree, and does not pollute the environment, has a large treating capacity, and is small in the necessary amount of fuel.

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Tokai, Japan

Tsuyoshi Majima