Brown University

Robert H Hurt

Love Sarin

Steven P Hamburg

Indrek Kulaots

Arun K Mehta

Eric M Suuberg

Xu Chen

Yuming Gao

Yu-Ming Gao

Alicia Burnett

Eric M Suubert

The present invention is a method and material for using a sorbent material to capture and stabilize mercury. The method for using sorbent material to capture and stabilize mercury contains the following steps. First, the sorbent material is provided. The sorbent material, in one embodiment, is nano-particles. In a preferred embodiment, the nano-particles are unstabilized nano-Se. Next, the sorbent material is exposed to mercury in an environment. As a result, the sorbent material captures and stabilizes mercury from the environment. In the preferred embodiment, the environment is an indoor space in which a fluorescent has broken.

Nanostructured sorbent materials for capturing environmental mercury vapor

Lighting apparatus for capturing and stabilizing mercury

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.

An apparatus and method for improving the properties of carbon-containing fly ash through ozonation is described. The apparatus includes a chamber for containing the fly ash and an ozonator that generates an ozone-containing gas. The ozonator supplies the ozone-containing gas such that it enters the chamber with the fly ash and deactivates carbon within the fly ash. Afterwards, the fly ash will have decreased surfactant adsorptivity so that it can be effectively mixed with cement or whatever other materials may require fly ash with passivated carbon.

Growing community of inventors

Barrington, RI, United States of America

Robert H Hurt