Sorbate characteristics of fly ash. Volume I. Final report

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The objective of this investigation is to correlate the sorbate and leaching characteristics of fly ash with coal properties and monitored combustion conditions in order to design a system for the inexpensive treatment of industrial wastes and leachate from industrial landfills using mixtures of fly ash as inexpensive sorbents. Such a low-cost treatment system could also treat ash pond effluent for water reuse by powerplants as cooling tower makeup. Twelve unblended coals from 10 different mines were burned under monitored conditions in three different types of coal fired boilers in order to determine the influence of coal composition, ash fusion ... continued below

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Pages: 228

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Liskowitz, J.W.; Grow, J.; Sheih, M.; Trattner, R.; Kohut, J. & Zwillenberg, M. August 1, 1983.

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Description

The objective of this investigation is to correlate the sorbate and leaching characteristics of fly ash with coal properties and monitored combustion conditions in order to design a system for the inexpensive treatment of industrial wastes and leachate from industrial landfills using mixtures of fly ash as inexpensive sorbents. Such a low-cost treatment system could also treat ash pond effluent for water reuse by powerplants as cooling tower makeup. Twelve unblended coals from 10 different mines were burned under monitored conditions in three different types of coal fired boilers in order to determine the influence of coal composition, ash fusion temperatures, boiler additives, combustion conditions and co-firing of natural gas or oil with the coal, on the leaching and sorbate characteristics of the fly ash produced. This included the determination of: (1) SiO/sub 2/, Al/sup 2/O/sub 3/, Fe/sub 2/O/sub 3/, CaO, K/sub 2/O, Na/sub 2/O, MgO, sulfur, ash fusion temperatures Ti, Cd, Sn, Ni, Pb, Mo, Cu, Cr, n, Mn, Ba and V in the coals and their respective fly ashes and bottom ashes; (2) Moessbauer spectra of a number of coals and their fly ashes; and (3) surface analysis of the fly ashes using ESCA. The leaching exhibited by the fly ashes with regard to pH, Cd, B, Sn, Ni, Pb, Mo, Cu, Cr, Mn and Fe was examined. In addition, the removal of Cd, B, Sn, Ni, Pb, Mo, Cu, Cr, Fe, As and organics by fly ash was evaluated, using from actual ash pond samples to model realistic inlet concentrations. The results show that fly ash can be used for the treatment of Cadmium, Boron, Tin, Molybdenum, Nickel, Lead, Copper, Chromium, Zinc, Manganese, Iron, Arsenic and organics in actual ash pond effluents. 18 references, 64 figures, 60 tables.

Physical Description

Pages: 228

Notes

NTIS, PC A11/MF A01; 1.

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  • Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted

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  • Other: DE84007948
  • Report No.: DOE/PC/30231-T5-Vol.1
  • Grant Number: FG22-80PC30231
  • DOI: 10.2172/5207141 | External Link
  • Office of Scientific & Technical Information Report Number: 5207141
  • Archival Resource Key: ark:/67531/metadc1055679

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  • August 1, 1983

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 29, 2018, 12:23 p.m.

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Liskowitz, J.W.; Grow, J.; Sheih, M.; Trattner, R.; Kohut, J. & Zwillenberg, M. Sorbate characteristics of fly ash. Volume I. Final report, report, August 1, 1983; United States. (digital.library.unt.edu/ark:/67531/metadc1055679/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.