Research Article
Oct 1982
Decarbonation of Limestone-Treated Mine Drainage
Authors: Frank Pearson, M.ASCE, Stephen McBride, M.ASCE, and Morman Batcheler, M.ASCEAuthor Affiliations
Publication: Journal of the Environmental Engineering Division
Volume 108, Issue 5
Abstract
Crushed limestone is used in various processes to neutralize acid mine drainage in a 2.5 mgd (9500 m³/day) facility near Hazelton, Pennsylvania. A 0.5 mgd (1900 m³/day) stream was treated by two limestone packed tumbling drums in series to increase pH from 3.7 to 5.4, followed by a lagoon for carbon dioxide removal that further increased pH to 6.1, to meet the pH 6 effluent quality target. Decarbonation process theory and design procedures are proposed. Graphs show pH increase versus carbon dioxide removal and carbon dioxide removal versus time of treatment and the overall film transfer coefficient. Nomographs also show how carbon dioxide removal depends on air-to-water ratio, air-water contact time, bubble or droplet diameter (for diffused air and spray decarbonation processes respectively), and the turbulence-dependent film transfer coefficient. Use of these nomographs is illustrated by calculation of the film transfer coefficient from experimental data.
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Information
Published In
Journal of the Environmental Engineering Division
Volume 108 • Issue 5 • October 1982
Pages: 957 - 972
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Oct 1982
Published online: Feb 11, 2021
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Authors
Affiliations
Frank Pearson, M.ASCE
Asst. Dir., Sanitary Engrg. and Environmental Health Research Lab., Univ. of California, Berkeley, Calif.
Stephen McBride, M.ASCE
Project Engr., GEO-Technical Services, Inc., Harrisburg, Pa.
Morman Batcheler, M.ASCE
Project Monitor, Pennsylvania Dept. of Environmental Resources, Harrisburg, Pa.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.