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Title: Evaluation of phosphate pebble as a precipitant for acid mine drainage treatment

Abstract

Laboratory testing was performed to evaluate the effectiveness of phosphate pebbles from Florida in the treatment of acid mine drainage under aerobic conditions. Using different flow rates, results show that phosphate pebbles effectively removed ferric iron up to 1,200 mg/l, aluminum up to 800 mg/l and sulfate up to 8,600 mg/l in three weeks. In addition, the pH increased to values as high as 3.2 in the effluent water from a pH of the influent water ranging from 2.1 to 2.2. Removal of ferric iron, aluminum, and sulfate as well as pH increases were inversely proportional to flow rates, ranging from 1.17 {times} 10{sup {minus}4} to 1.05 {times} 10{sup {minus}3} liters per minute per kg of phosphate pebble. Apparently this method can be applied to reduce acid mine drainage from old coal refuse piles, even those containing high concentration of ferric iron and aluminum ions.

Authors:
;  [1]
  1. Purdue Univ., West Lafayette, IN (United States). Dept. of Earth and Atmospheric Sciences
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
136684
Resource Type:
Journal Article
Journal Name:
Environmental amp Engineering Geoscience
Additional Journal Information:
Journal Volume: 1; Journal Issue: 2; Other Information: PBD: Sum 1995
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; ILLINOIS; COAL MINING; ACID MINE DRAINAGE; MITIGATION; WATER TREATMENT; PHOSPHATES; ACID NEUTRALIZING CAPACITY

Citation Formats

Choi, J C, and West, T R. Evaluation of phosphate pebble as a precipitant for acid mine drainage treatment. United States: N. p., 1995. Web. doi:10.2113/gseegeosci.I.2.163.
Choi, J C, & West, T R. Evaluation of phosphate pebble as a precipitant for acid mine drainage treatment. United States. https://doi.org/10.2113/gseegeosci.I.2.163
Choi, J C, and West, T R. 1995. "Evaluation of phosphate pebble as a precipitant for acid mine drainage treatment". United States. https://doi.org/10.2113/gseegeosci.I.2.163.
@article{osti_136684,
title = {Evaluation of phosphate pebble as a precipitant for acid mine drainage treatment},
author = {Choi, J C and West, T R},
abstractNote = {Laboratory testing was performed to evaluate the effectiveness of phosphate pebbles from Florida in the treatment of acid mine drainage under aerobic conditions. Using different flow rates, results show that phosphate pebbles effectively removed ferric iron up to 1,200 mg/l, aluminum up to 800 mg/l and sulfate up to 8,600 mg/l in three weeks. In addition, the pH increased to values as high as 3.2 in the effluent water from a pH of the influent water ranging from 2.1 to 2.2. Removal of ferric iron, aluminum, and sulfate as well as pH increases were inversely proportional to flow rates, ranging from 1.17 {times} 10{sup {minus}4} to 1.05 {times} 10{sup {minus}3} liters per minute per kg of phosphate pebble. Apparently this method can be applied to reduce acid mine drainage from old coal refuse piles, even those containing high concentration of ferric iron and aluminum ions.},
doi = {10.2113/gseegeosci.I.2.163},
url = {https://www.osti.gov/biblio/136684}, journal = {Environmental amp Engineering Geoscience},
number = 2,
volume = 1,
place = {United States},
year = {Fri Dec 01 00:00:00 EST 1995},
month = {Fri Dec 01 00:00:00 EST 1995}
}