Brown University

Xu Chen

Arun K Mehta

Robert H Hurt

Yuming Gao

Eric M Suuberg

Eric M Suubert

Carbon-containing fly ash has been treated with optimum amounts of ozone. There is homogenous treatment of the fly ash with ozone and over saturation with ozone is avoided. In a further embodiment of the invention carbon, from various sources is oxygenated to be incorporated into concrete. The preferred oxygenating agent is ozone.

Ozone treatment of fly ash

A method for removing ammonia from fly ash employs water mist (a water fog) or a flowing warm humid air stream to rid the fly ash of ammonia. Ozone alone or with other co-oxidants such as hydrogen peroxide are also used to rid fly ash of ammonia.

Dry and semi-dry methods for removal of ammonia from fly ash

Carbon-containing fly ash has been treated with optimum amounts of ozone. There is homogenous treatment of the fly ash with ozone and oversaturation with ozone is avoided.

Growing community of inventors

Providence, RI, United States of America

Xu Chen