Bioremediation destroys dioxin in contaminated soil

Article Abstract:

A newly-discovered variety of white rot fungus is being used by Idemitsu Kosan to degrade dioxin in polluted soil. The fungus secretes the enzyme laccase, which decomposes the dioxin. The contaminated soil is heated to more than 75 degrees C to destroy other fungi that may be present, then the white rot fungus is added, along with natural fatty acids for food. Laboratory tests show that it takes only a month to decompose as much as 53% of the 2,000 picograms of dioxin per gram of soil.

Manufacturing processes, Pesticide and Other Agricultural Chemical Manufacturing, Dioxin, Dioxins, Idemitsu Kosan Co.

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A cheaper route to high-purity 2,6-dimethyl naphthalene

Article Abstract:

ExxonMobil Corp of Irving, TX, and Kobe Steel Ltd of Tokyo, Japan, are licensing a method for manufacturing 2,6-dimethyl naphthalene (2,6-DMN). The process uses feed oil from such sources as ethylene cracker bottoms or fluid catalytic crackers, making it one of the least expensive processes available for making 2,6-DMN. This method of manufacturing 2,6-DMN, a precursor for the production of advanced polyester materials, is estimated to be 40% less costly than conventional techniques.

United States, Strategic alliances, Naphthalene, Petrochemical Manufacturing, Exxon Mobil Corp.

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