Activated carbon treated by carbon dioxide for the stabilization

Details Activated carbon treated by carbon dioxide for the stabilization Activated carbon treated by carbon dioxide for the stabilization

1996-02-06

1998-02-03

Caldarola, Glenn

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Free carbon containing

502416, 502426, 502432, 502433, 502434, 502180, 423460, B01J 2002, B01J 2118

Patent

active

057144338

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 9.0. Use of this carbon in a water treatment system eliminates the excessive effluent water pH rise which commonly occurs with activated carbon.

REFERENCES:
patent: 5164355 (1992-11-01), Farris et al.
patent: 5368739 (1994-11-01), Dussert et al.

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