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Title: Alum sludge land application and its effect on plant growth

Journal Article · · Journal of the American Water Works Association; (United States)
OSTI ID:6791919
 [1]; ; ; ;  [2]
  1. North Carolina Div. of Environmental Management, Raleigh, NC (United States)
  2. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)

These investigators conducted three greenhouse experiments to determine the impact of alum sludge from the Harwood's Mill water treatment plant, newport News, Va., on the growth and chemical composition of fescue grass. Fescue yields decreased with increased sludge addition, a trend that was attributed to reductions in plant-available phosphorus (P) at higher loadings. Supplemental P fertilization corrected this deficiency. Lime addition did not affect yield. The presence of manganese and copper in the sludge increased metal uptake by the plants but did not affect yield.

OSTI ID:
6791919
Journal Information:
Journal of the American Water Works Association; (United States), Vol. 86:11; ISSN 0003-150X
Country of Publication:
United States
Language:
English