Patent Number: 7,784,620

Title: Agglomeration for the treatment of acid mine drainage

Abstract: Provided is an agglomeration for neutralizing acid mine drainage which includes a neutralizer and binder component consisting of steel slag in an amount of 75% to 95% by weight of the agglomeration, a sodium carbonate selected from the group consisting of soda ash and pulp liquor in an amount of 0.5% to 25% of the agglomeration, and, optionally, a lime component selected from the group consisting of limestone sand and slag. Further included is a dissolution control and filtration component consisting of an organic material in an amount of 0.24% to 15% by weight of the agglomeration selected from the group consisting of recycled newsprint, sphagnum peat moss, and sawdust. Next is a dispersant and neutralizer component consisting of a surfactant in an amount of 0.01% to 0.075% by weight of the agglomeration. The agglomeration may further comprise an oxidation component such as calcium peroxide, potassium permanganate, and hydrogen peroxide.

Inventors: Sharkey, Jr.; William S. (Munhall, PA), Baker; Paul J. (Fairmont, WV)

Assignee: Waterways Restoration Group, Inc.

International Classification: C02F 1/50 (20060101); D21H 17/64 (20060101); B01D 24/00 (20060101); C02F 5/10 (20060101)

Expiration Date: 8/31/12018