Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...
Patent
1995-03-03
1996-07-16
Phasge, Arun S.
Chemistry: electrical and wave energy
Processes and products
Electrophoresis or electro-osmosis processes and electrolyte...
204528, 205748, B01D 6144, C02F 1469
Patent
active
055363857
ABSTRACT:
The present invention, in certain embodiments, teaches a process for treating ammonia or ammonium-sulfate-containing waste effluent from an acrylonitrile, caprolactam or acetonitrile manufacturing facility. In one such process the effluent is fed to a deep well oxidizer, e.g. a water oxidizer vertical tube reactor (super critical or subcritical), to degrade organic contaminants. Certain embodiments of the deep well oxidizer have, according to this invention, an oxygen inlet tube movable by a coil tubing system. The output stream from the vertical tube reactor is, preferably, filtered, and then it is fed to an electrodialysis unit. In one aspect the electrodialysis unit produces an output stream at a pH of about 5 with a concentration of ammonium sulfate at least, preferably, of about 15% by weight, and most preferably between about 20% and about 26% by weight. This output stream may be neutralized and then further treated to remove ammonia and/or ammonium sulfate solids, e.g. by a downstream ammonia stripper, evaporator, and/or crystallizer system or combination thereof.
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Applegath Fred
Malachosky Edward
Sheldon Joseph P.
Stanton Walter H.
Envirocorp Services & Technology, Inc.
McClung Guy
Phasge Arun S,.
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