C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
182/9
C02F 1/28 (2006.01)
Patent
CA 1138349
REMOVAL OF TOXIC AND ODOROUS ORGANICS FROM WASTE WATER BY SATURATED ACTIVATED CARBON ABSTRACT OF THE INVENTION An adsorption process for the selective removal of naphthalenic hydrocarbons in the waste water from a petrochemical operation which comprises contacting the effluent waste water for relatively short periods with activated carbon which has become saturated with respect to non-naphthalenic organics. Contact of the waste water streams with the saturated carbon is continued until the breakthrough of naphthalenic compounds in the waste water exceeds a predetermined concentration, such as 2ppm. It has been found that efficient removal of naphthalenic com- pounds can be effected by contacting the waste water for relatively short contact times, for example 10 minutes, notwithstanding the fact that the activated carbon has previously become saturated with respect to non-naphtha- lenic compounds.
351297
Kempling J. Christopher
Knettig Eva
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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