Effect of sewage sludge on trace element mobility in soils
Adsorption of Be, F, B, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Sr, Mo, Tc, Ag, Cd, Sn, Sb, Cs, Ba, Hg, Pb, Bi, and P was measured in a sandy soil and a sandy loam soil at concentration levels closely corresponding to those to be expected for field conditions. Mobilities of the elements in the soils were calculated from the adsorption data. Of the trace elements studied, F, B, and Tc were found to be very mobile in both the sandy and sandy loam sils. Manganese, Sr, and Sb were highly mobile only in the sandy soil, and Mo in the sandy loam soil. In general, sludge solutions appeared to increase the mobility of elements in a soil. This is due to a combination of complexation by dissolved organic compounds, high background concentrations, and high ionic strengths of the soil solutions. The relative effects of these factors vary strongly among elements. Equations were derived predicting the rates of accumulation in soils and accompanying increases in the soil solutions of trace elements added with sewage sludge. When adsorption was related to soil organic matter content, for many trace elements the strength of adsorption was found to depend only on pH, increasing with increasing pH.
- Research Organization:
- Inst. for Soil Fertility, Haren, The Netherlands
- OSTI ID:
- 5822770
- Journal Information:
- J. Environ. Qual.; (United States), Vol. 11:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANTIMONY
SOIL CHEMISTRY
ARSENIC
BARIUM
BERYLLIUM
BISMUTH
BORON
CADMIUM
CESIUM
CHROMIUM
COBALT
COPPER
FLUORINE
IRON
LEAD
MANGANESE
MERCURY
MOLYBDENUM
NICKEL
PHOSPHORUS
SELENIUM
SEWAGE SLUDGE
ENVIRONMENTAL EFFECTS
SILVER
SOILS
FERTILITY
STRONTIUM
TECHNETIUM
TIN
VANADIUM
ZINC
ADSORPTION
BUILDUP
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
PH VALUE
TRACE AMOUNTS
ALKALI METALS
ALKALINE EARTH METALS
CHEMISTRY
ELEMENTS
HALOGENS
MASS TRANSFER
METALS
NONMETALS
SEMIMETALS
SEWAGE
SLUDGES
SORPTION
TRANSITION ELEMENTS
WASTES
510200* - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)