The Ohio State University

The United States of America as Represented by the Administrator of the U.S. Environmental Protection Agency

U.S. Epa

James A Ryan

Terry J Logan

Wendy Jo Davis-Hoover

Kirk Gerald Scheckel

Samuel J Traina

Christopher A Impellitteri

Harry J Guttman

Qi Y Ma

Ruthenium compounds, either alone or in combination with other remediating compounds, can be used to oxidize, remove and sequester contaminants in water and soil or sediments.

Method for removing contaminants from water using ruthenium based contaminant sorbents and oxidizers

A medium for culturing microorganisms in the presence of Pb uses as a phosphate component, an O-phosphate-L-amino acid, to provide a source of phosphate for the microorganisms so as to avoid precipitating lead.

Medium for cultivating microorganisms

Solid calcium phosphate materials are used for in-situ immobilization of lead contaminated soils, wastes, and sediments by mixing the solid calcium phosphate material with the lead contaminated material and leaving the mixture in place. The solid calcium phosphate material includes, for example, naturally occurring apatite, synthetic hydroxyapatite, dibasic calcium phosphate, or phosphate rock.

Method for in-situ immobilization of lead in contaminated soils, wastes,

Growing community of inventors

Cincinnati, OH, United States of America

James A Ryan