. A bench scale evaluation of organic substrates for use in constructed wetlands for the treatment of acid mine drainage. Acid mine drainage; Heavy metals; Constructed wetlands; Wetlands. ACIDITY AND ALKALINITY To 5T Column 3 Ld o > UJ rr o a,. _A 30 .„ 50 „ 70 „ 90 -nA110<„,„190__-210„_230 20 40 SO 80 100 120 140 160 180 200 220 ELAPSED TIME (DAYS) Column 4 30 20 - 10. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the ori


. A bench scale evaluation of organic substrates for use in constructed wetlands for the treatment of acid mine drainage. Acid mine drainage; Heavy metals; Constructed wetlands; Wetlands. ACIDITY AND ALKALINITY To 5T Column 3 Ld o > UJ rr o a,. _A 30 .„ 50 „ 70 „ 90 -nA110<„,„190__-210„_230 20 40 SO 80 100 120 140 160 180 200 220 ELAPSED TIME (DAYS) Column 4 30 20 - 10. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Schafer and Associates; Schafer and Associates; Montana. Abandoned Mine Reclamation Bureau. Bozeman, Mont. : The Associates


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