B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/4
B01D 15/02 (2006.01) C01B 31/08 (2006.01) C02F 1/28 (2006.01)
Patent
CA 1048940
ABSTRACT OF THE DISCLOSURE A process for the purification of a waste water contain- ing dissolved organic carbon contaminants which comprises (a) passing the waste water upwardly through a column of activated carbon particles, (b) determining the total organic carbon content of the water before it enters the column and simultaneously at a location that is between 30 and 70% of the total height of the carbon parti- cles in the column, (c) continuously withdrawing the spent carbon particles from the bottom of the column at such a rate as to maintain an es- sentially constant preselected difference between the total organic carbon content of the water as it enters the column and at the pre- selected location that is between 30 and 70% of the height of the carbon particles in the column, (d) continuously introducing fresh activated carbon parti- cles or reactivated carbon particles at the top of the column at such a rate as to compensate for those withdrawn at the bottom of the column, and (e) removing the thus-purified water at the top of the column. - 1 -
232578
Gappa Gunther
Juntgen Harald
Klein Jurgen
Reichenberger Jurgen
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