TY - JOUR
T1 - Use of industrial by-products to sorb and retain phosphorus
AU - Penn, C. J.
AU - Bryant, R. B.
AU - Callahan, M. P.
AU - Mcgrath, J. M.
PY - 2011/1
Y1 - 2011/1
N2 - The potential of six industrial by-products for use as phosphorus-sorbing materials (PSMs) in solutions was evaluated. These included two different acid mine drainage treatment residuals (AMDR1 and AMDR2), water treatment residual (WTR), fly ash, bauxite mining residual, and flue gas desulfurization product (FGD). Characterization of the by-products and their mechanisms for sorption and retention of inorganic phosphorus (P) from solution identified those PSMs that sorbed primarily by an iron and aluminum (Fe/Al) mechanism, those that sorbed primarily by a calcium and magnesium (Ca/Mg) mechanism, and those that sorbed by both mechanisms. Degree of P sorption and associated mechanisms were strongly influenced by the pH, buffer capacity, ionic strength, and common ion effects.
AB - The potential of six industrial by-products for use as phosphorus-sorbing materials (PSMs) in solutions was evaluated. These included two different acid mine drainage treatment residuals (AMDR1 and AMDR2), water treatment residual (WTR), fly ash, bauxite mining residual, and flue gas desulfurization product (FGD). Characterization of the by-products and their mechanisms for sorption and retention of inorganic phosphorus (P) from solution identified those PSMs that sorbed primarily by an iron and aluminum (Fe/Al) mechanism, those that sorbed primarily by a calcium and magnesium (Ca/Mg) mechanism, and those that sorbed by both mechanisms. Degree of P sorption and associated mechanisms were strongly influenced by the pH, buffer capacity, ionic strength, and common ion effects.
KW - Industrial by-products
KW - Phosphorus
KW - Sorption
KW - Water quality
UR - http://www.scopus.com/inward/record.url?scp=79952919177&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952919177&partnerID=8YFLogxK
U2 - 10.1080/00103624.2011.550374
DO - 10.1080/00103624.2011.550374
M3 - Article
AN - SCOPUS:79952919177
SN - 0010-3624
VL - 42
SP - 633
EP - 644
JO - Communications in Soil Science and Plant Analysis
JF - Communications in Soil Science and Plant Analysis
IS - 6
ER -