Report on Industrial Wastes from the Stockyards and Packingtown in Chicago

Mode of access: Internet.

Radioactive wastes

Cover title.

Resource Conservation and Recovery Act--oversight : hearings before the Subcommittee on Hazardous Wastes and Toxic Substances of the Committee on Environment and Public Works, United States Senate, One Hundredth Congress, first session.

Item 1045-A, 1045-B (microfiche).

Improvements needed in the land disposal of radioactive wastes : a problem of centuries : report to the Congress /

Cover title.

Water-borne wastes; an annotated bibliography.

Mode of access: Internet.

Chemistry of acid production in black coal mine washery wastes

Column leaching tests on black coal mine washery wastes were performed, to determine the chemistry of acid generation. Coal mine coarse rejects and tailings were subjected to wet and dry cycle dissolution and subsequently column leached. The rates of iron sulphide oxidation and carbonate mineral dissolution were determined based on the drainage chemistry. The kinetic data from column leach experiments are used to predict the time required to deplete the acid producing and acid consuming minerals in the mine wastes. The acid production in the mine rejects was found to depend upon iron chemistry, carbonate chemistry, diffusion of oxygen, and permeability. The chemistry of the drainage from two different coal mines is compared. (c) 2005 Elsevier B.V. All rights reserved.