Sorbate characteristics of fly ash. Semi-annual progress report

Technical Report · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5274265

Liskowitz, J W; Grow, J; Sheih, M; Trattner, R; Kohut, J; Zwillenberg, M

A two year investigation is being carried out to design a system for the inexpensive treatment of ash pond effluent or leachate. During the first year of this investigation 12 different test coals were burned in three different types of coal fired boilers to determine the influence of coal composition, ash fusion temperatures, boiler additives, combustion conditions and co-firing of natural gas and oil with the coal, on the composition and sorbent characteristics of the fly ash produced. The major and minor elemental analysis as well as Moessbauer spectra of these twelve coals and their respective fly ashes have been completed. Analysis for the percent TiO/sub 2/ and trace amounts of Cd, Cu, Cr, Pb, Zn, Sn, Ni and Mn in the coals and their respective fly ashes as well as complete interpretation of the Moessbauer spectra have yet to be completed. The leaching and sorbate characterization of the fly ashes with regard to pH, Cd, B, Sn, Ni, Pb, Mo, Cu, Cr, Zn, Mn and Fe have been completed. The results indicate that high boiler temperature combustion conditions such as increasing power output, reducing the excess oxygen or increasing the amount of natural gas or oil co-fired with the coal or composition factor such as low ash fusion temperatures or low percentages of SiO/sub 2/ in the fly ashes favor the production of fly ash with good sorbate characteristics. Additives which are introduced into the flue gas to neutralize the SO/sub 2/ or improve the resistency of the fly ash do not influence the sorbate properties of the fly ashes. No correlation was found to exist between the percent Al/sub 2/O/sub 3/, Fe/sub 2/O/sub 3/, CaO, K/sub 2/O, N/sub 2/O, MgO and S in the fly ash and its sorbate properties.

• Research Organization: New Jersey Inst. of Tech., Newark (USA); Public Service Electric and Gas Co., Newark, NJ (USA)
• DOE Contract Number: FG22-80PC30231
• OSTI ID: 5274265
• Report Number(s): DOE/PC/30231-2; ON: DE82005265
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
010800 -- Coal
Lignite
& Peat-- Waste Management
AEROSOL WASTES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ASHES
BOILERS
BORON
CADMIUM
CALCIUM COMPOUNDS
CALCIUM OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMIUM
COAL
COMBUSTION
COPPER
DATA
DISPERSIONS
DISSOLUTION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FLY ASH
FOSSIL FUELS
FUELS
INFORMATION
IRON
IRON COMPOUNDS
IRON OXIDES
LEACHATES
LEACHING
LEAD
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MANGANESE
MATERIALS
METALS
MINERALS
MIXTURES
MOESSBAUER EFFECT
MOLYBDENUM
NICKEL
NONMETALS
NUMERICAL DATA
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
POTASSIUM COMPOUNDS
POTASSIUM OXIDES
QUANTITATIVE CHEMICAL ANALYSIS
RESEARCH PROGRAMS
RESIDUES
SEMIMETALS
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SODIUM COMPOUNDS
SODIUM OXIDES
SOLUTIONS
SORPTIVE PROPERTIES
SPECTROSCOPY
SULFUR
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TIN
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTES
ZINC