Netar P Wadhwa from 245 Daugherty Dr, Barboursville, WV 25504, age 80, Phone: 3047366840

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Position:

engr at wv dep

Location:

Huntington, West Virginia Area

Industry:

Government Administration

Work:

wv dep
engr

Activated Carbon Treated By Carbon Dioxide For The Stabilization Of Treated Water Ph And The Control Of Aluminum In The Treated Water
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US Patent:

58766073, Mar 2, 1999
Filed:

Feb 5, 1997
Appl. No.:

8/795002
Inventors:

Richard W. Farmer - Gibsonia PA
Susan L. Kovacic - McKees Rocks PA
Brett Leslie Pinker - Brussels, BE
Thomas M. Matviya - Pittsburgh PA
Netar P. Wadhwa - Barboursville WV
Assignee:

Calgon Carbon Corporation - Pittsburgh PA
International Classification:

C02F 128
US Classification:

210681
Abstract:

Treatment of a wet activated carbon with carbon dioxide or with carbon dioxide followed by air results in a carbon having a reduced contact pH. The activated carbon is characterized by a modified contact pH less than about 9. 0 and typically between about 7. 3 and 9. Use of this carbon in a water treatment system eliminates the excessive effluent water pH rise which commonly occurs with activated carbon. Also use of this carbon in a water treatment system reduces the aluminum concentration of the water when compared to an untreated carbon.

Activated Carbon Treated By Carbon Dioxide For The Stabilization Of Treated Water Ph
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US Patent:

57144338, Feb 3, 1998
Filed:

Feb 6, 1996
Appl. No.:

8/597115
Inventors:

Richard W. Farmer - Gibsonia PA
Susan L. Kovacic - McKees Rocks PA
Thomas M. Matviya - Pittsburgh PA
Netar P. Wadhwa - Barboursville WV
Assignee:

Calgon Carbon Corporation - Pittsburgh PA
International Classification:

B01J 2002
B01J 2118
US Classification:

502430
Abstract:

Treatment of a wet activated carbon with carbon dioxide or with carbon dioxide followed by air results in a carbon having a reduced contact pH. The activated carbon is characterized by a modified contact pH less than about 9. 0 and typically between about 7. 3 and 9. Use of this carbon in a water treatment system eliminates the excessive effluent water pH rise which commonly occurs with activated carbon.

Netar P Wadhwa