Abstract: A solid-state chlorine dioxide generator for generating an aqueous solution of ClO2 is formed within a block comprising an eductor for establishing a vacuum pressure and a reaction column for producing ClO2 from precursor chemicals. The eductor has a water stream flowing therethrough which establishes a vacuum pressure and draws the ClO2 from the reaction column into the water stream to form an aqueous ClO2 solution. The reaction chamber comprises a novel transition zone of increasing flow area wherein the precursor chemicals thoroughly mix resulting in conversion efficiencies of precursors into ClO2 of 95% and above.

Abstract: A solid-state chlorine dioxide generator for generating an aqueous solution of chlorine dioxide is formed within a block and includes (a) an eductor for establishing a vacuum, and (b) a reaction column for producing chlorine dioxide from precursor chemicals. The eductor has a water stream flowing there throughwhich establishes a vacuum and draws the chlorine dioxide from the reaction column into the water stream to form aqueous chlorine dioxide. The reaction column has a transition zone of increasing flow area wherein the precursor chemicals thoroughly mix resulting in conversion efficiencies of precursors into chlorine dioxide of 95% and above.

Abstract: Wastewater lagoons are treated with chlorine oxygen compounds to react with odorous sulfides and mercaptans emanating from the lagoon. A fine spray of an aqueous solution of the chlorine oxygen compound (HOCl, NaClO.sub.2, or NaOCL) is applied over the lagoon. The chlorine oxygen compounds react with the sulfides in the vapor zone above the lagoon, converting the odorous compounds to non-odorous compounds.