Barnes & Thornburg LLP
Fermentation and chemical treatment of pulp and paper mill sludge
A method of chemically treating partially de-ashed pulp and/or paper mill sludge to obtain products of value comprising taking a sample of primary sludge from a Kraft paper mill process, partially de-ashing the primary sludge by physical means, and further treating the primary sludge to obtain the products of value, including further treating the resulting sludge and using the resulting sludge as a substrate to produce cellulase in an efficient manner using the resulting sludge as the only carbon source and mixtures of inorganic salts as the primary nitrogen source, and including further treating the resulting sludge and using the resulting sludge to produce ethanol.
Auburn University
D Y C D
D21C Y02E C02F D21C
additional additional additional inventional
Wei Li Yoon Y.
Wang Kang Lee