Calgon Carbon Corporation

Bertrand W Dussert

Richard A Hayden

Richard W Farmer

James R Bolton

John R Lutchko

R D Samuel Stevens

Kishio Yoshino

Satoru Hisaki

Fujito Ehara

A method for the inactivation of Cryptosporidium oocysts, Giardia cysts and similar organisms comprising irradiating water with ultraviolet light in doses of from about 1 mJ/cm to about 175 mJ/cm .

Method for the inactivation of cryptosporidium parvum using ultraviolet light

An oxidized activated carbon having a contact pH between 7.1 and 8.2 for general use in aqueous treatment systems to prevent pH and alkalinity excursions during start-up of the system and an oxidized activated carbon having a contact pH between 6.0 and 9.5 for specific use in aqueous treatment systems to control pH and alkalinity changes during water treatment.

Oxidized activated carbon for the control of pH and alkalinity in water

An activated carbon oxidized by air or oxygen at near ambient temperatures having a contact pH between 7.6 and 8.5 for use in water treatment systems to prevent pH excursions during operation of the system.

Activated carbon oxidized by air at near ambient temperatures for the

An oxidized activated carbon having a contact pH between 7.1 and 8.2 for use in aqueous treatment systems to prevent pH and alkalinity excursions during start-up of the system.

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Pittsburgh, PA, United States of America

Bertrand W Dussert