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PHOSPHATE IN WATERS: I. REDUCTION USING NORTHERN LIGNITE FLY ASH 1
Author(s) -
Fine Lawrence O.,
Jensen William P.
Publication year - 1981
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1981.tb01314.x
Subject(s) - fly ash , phosphate , phosphorus , environmental chemistry , chemistry , environmental science , coal , phosphorite , waste management , engineering , organic chemistry
Fly ashes fiom lignite coal fixed steam electric plants contain appreciable amounts of materials that can, in principle, decrease the phosphorus concentration in surface waters. Typical samples of un‐weathered fly ash were used to test efficacies of removal of phosphorus from standard phosphate solutions and actual lake water samples. The effects of changing parameters such as contact time, pH, fly ash/water ratios, and solution temperature are presented. Water soluble and insoluble factors in the ash both appear to be reactive constituents. Trials with municipal waste waters showed near quantitative removal of ortho‐phosphate.