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Title: Land application uses of dry FGD by-products. [Quarterly] report, July 1, 1993--September 30, 1993

Abstract

Reclamation of mine-sites with acid overburden requires the use of alkaline amendments and represents a potential high-volume use of alkaline dry flue gas desulfurization (FGD) by products. In a greenhouse study, 25-cm columns of acid mine spoil were amended with two FGD by-products; lime injection multistage burners (LIMB) fly ash or pressurized fluidized bed (PFBC) fly ash at rates of 0, 4, 8, 16, and 32% by weight (0, 40, 80, 160, and 320 tons/acre). Amended spoil was covered with 20 cm of acid topsoil amended with the corresponding FGD by-product to pH 7. Column leachate pH increased with FGD amendment rate while leachate Fe, Mn, and Zn decreased, Leachate Ca, S, and Mg decreased with LIMB amendment rate and increased with PFBC amendment. Leachate concentrations of regulated metals were decreased or unaffected by FGD amendment except for Se which was increased by PFBC. Spoil pH was increased up to 8.9 by PFBC, and up to 9.2 by LIMB amendment. Spoil pH also increased with depth with FGD amendments of 16 and 32%, Yield of fescue was increased by FGD amendment of 4 to 8%. Plant tissue content of most elements was unaffected by FGD amendment rate, and no toxicitymore » symptoms were observed. Plant Ca and Mg were increased by LIMB and PFBC respectively, while plant S, Mn and Sr were decreased. Plant Ca and B was increased by LIMB, and plant Mg and S by PFBC amendment. These results indicate dry FGD by-products are effective in ameliorating acid, spoils and have a low potential for creating adverse environmental impacts.« less

Authors:
;
Publication Date:
Research Org.:
Dravo Lime Co., Pittsburgh, PA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10121450
Report Number(s):
DOE/MC/28060-3642
ON: DE94006445; BR: AA0515000
DOE Contract Number:  
FC21-91MC28060
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1993]
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 01 COAL, LIGNITE, AND PEAT; SPOIL BANKS; LAND RECLAMATION; REVEGETATION; FLUIDIZED-BED COMBUSTORS; ASHES; SORBENT INJECTION PROCESSES; CALCIUM OXIDES; LIMESTONE; WASTE PRODUCT UTILIZATION; PROGRESS REPORT; LEACHING; CROPS; YIELDS; LEACHATES; CHEMICAL COMPOSITION; 320305; 010800; INDUSTRIAL WASTE MANAGEMENT; WASTE MANAGEMENT

Citation Formats

Dick, W A, and Beeghly, J H. Land application uses of dry FGD by-products. [Quarterly] report, July 1, 1993--September 30, 1993. United States: N. p., 1993. Web. doi:10.2172/10121450.
Dick, W A, & Beeghly, J H. Land application uses of dry FGD by-products. [Quarterly] report, July 1, 1993--September 30, 1993. United States. https://doi.org/10.2172/10121450
Dick, W A, and Beeghly, J H. 1993. "Land application uses of dry FGD by-products. [Quarterly] report, July 1, 1993--September 30, 1993". United States. https://doi.org/10.2172/10121450. https://www.osti.gov/servlets/purl/10121450.
@article{osti_10121450,
title = {Land application uses of dry FGD by-products. [Quarterly] report, July 1, 1993--September 30, 1993},
author = {Dick, W A and Beeghly, J H},
abstractNote = {Reclamation of mine-sites with acid overburden requires the use of alkaline amendments and represents a potential high-volume use of alkaline dry flue gas desulfurization (FGD) by products. In a greenhouse study, 25-cm columns of acid mine spoil were amended with two FGD by-products; lime injection multistage burners (LIMB) fly ash or pressurized fluidized bed (PFBC) fly ash at rates of 0, 4, 8, 16, and 32% by weight (0, 40, 80, 160, and 320 tons/acre). Amended spoil was covered with 20 cm of acid topsoil amended with the corresponding FGD by-product to pH 7. Column leachate pH increased with FGD amendment rate while leachate Fe, Mn, and Zn decreased, Leachate Ca, S, and Mg decreased with LIMB amendment rate and increased with PFBC amendment. Leachate concentrations of regulated metals were decreased or unaffected by FGD amendment except for Se which was increased by PFBC. Spoil pH was increased up to 8.9 by PFBC, and up to 9.2 by LIMB amendment. Spoil pH also increased with depth with FGD amendments of 16 and 32%, Yield of fescue was increased by FGD amendment of 4 to 8%. Plant tissue content of most elements was unaffected by FGD amendment rate, and no toxicity symptoms were observed. Plant Ca and Mg were increased by LIMB and PFBC respectively, while plant S, Mn and Sr were decreased. Plant Ca and B was increased by LIMB, and plant Mg and S by PFBC amendment. These results indicate dry FGD by-products are effective in ameliorating acid, spoils and have a low potential for creating adverse environmental impacts.},
doi = {10.2172/10121450},
url = {https://www.osti.gov/biblio/10121450}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Dec 31 00:00:00 EST 1993},
month = {Fri Dec 31 00:00:00 EST 1993}
}