Trace element solid-phase associations in sewage sludge and sludge-amended soil

Journal Article · · Soil Science Society of America Journal; (United States)

DOI:https://doi.org/10.2136/sssaj1991.03615995005500020008x· OSTI ID:5535312

Essington, M E ^[1]; Mattigod, S V ^[2]

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1. Univ. of Tennessee, Knoxville (United States)
2. Battelle Northwest Labs., Richland, WA (United States)

A scheme involving the use of particle size, density, and magnetic susceptibility was applied to sewage sludge and sewage-sludge-amended soil to isolate trace-element-bearing solids for identification by x-ray diffraction (XRD) and scanning electron microscopy/energy dispersive x-ray analysis (SEM/EDXRA). The heavy-density (>2.96 Mg m{sup {minus}3}) fractions of the sludge and amended soil contained barite, celestite, lead silicate, lead phosphate, chromium oxide or oxyhydroxide, sphalerite, and chalcopyrite. Vanadium was associated with Ti, Ca, Si, and Fe in amended soil particles, suggesting its occurrence in titanite. The heavy-density fractions also contained trace-element-bearing particles of industrial origin, including Sb, Cr-Fe, Cr-Ni-Fe, Zn-Sn, Cr-An-Fe, Sn-Fe-Cu-Zn, Pb-Cr, Pb-Sn, W-Se, and Co-Cr elemental associations. Trace-element-bearing particles contained in the light-density (<2.10 Mg m{sup {minus}3}) fractions of the sludge and sludge-amended soil were similar to those identified in the heavy-density separates. Their presence was apparently due to particle agglomeration with organic matter. The physicochemical particle fractionation scheme was effective in concentrating trace-mineral phases for detection by SEM/EDXRA. However, crystalline trace-element-bearing minerals were not sufficiently concentrated for SRD identification.

• OSTI ID: 5535312
• Journal Information: Soil Science Society of America Journal; (United States), Journal Name: Soil Science Society of America Journal; (United States) Vol. 55:2; ISSN SSSJD; ISSN 0361-5995
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring &amp; Transport-- (1990-)
ANTIMONY
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
CHEMICAL COMPOSITION
CHROMIUM
COBALT
COHERENT SCATTERING
COPPER
DIFFRACTION
ELECTRON MICROSCOPY
ELEMENTS
GROUND DISPOSAL
INDUSTRIAL PLANTS
IRON
LEAD
MANAGEMENT
MATERIALS
MATTER
MEASURING METHODS
METALS
MICROSCOPY
NICKEL
ORGANIC MATTER
POLLUTION SOURCES
SCANNING ELECTRON MICROSCOPY
SCATTERING
SELENIUM
SEMIMETALS
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOILS
TIN
TRACE AMOUNTS
TRANSITION ELEMENTS
VANADIUM
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
X-RAY DIFFRACTION
ZINC