. 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. Table 3. Substrate pH, neutralization potential and neutralization capacity. Substrate Equilibrium pH1 Cum Acidity NP NC Standard Units mg/1 liters Eko-Compost 140505 56313 Groco 122432 47353 Great Western Mushroom Compost 121664 247296 United Foods Mushroom Compost 126082 187710 Peaco Peat 118266 69821 Farmers Peat 101439 75429 pH value of 5
. 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. Table 3. Substrate pH, neutralization potential and neutralization capacity. Substrate Equilibrium pH1 Cum Acidity NP NC Standard Units mg/1 liters Eko-Compost 140505 56313 Groco 122432 47353 Great Western Mushroom Compost 121664 247296 United Foods Mushroom Compost 126082 187710 Peaco Peat 118266 69821 Farmers Peat 101439 75429 pH value of 5:1 ratio DI water (ml) to substrate (g). SUBSTRA TE NEUTRALIZA TION POTENTIAL Tons CaC03/Ton Substrate (x100) 20 (0 § 15 o c .2 10 +â » re N. Substrate Eko-Kompost FJ Groco United Foods Peaco Peat Great Western Farmers Peat Figure 11. Substrate neutralization potential prior to introduction of AMD. 38. 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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