Behavior of aromatic surfactants and PCBs in sludge-treated soil and landfills
- Univ. of Venice (Italy)
- Geological Survey, St. Paul, MN (United States)
- Federal Inst. for Water Resources and Water Pollution Control, Duebendorf (Switzerland)
The aromatic surfactant linear alkylbenzenesulphonate (LAS) and the refractory biointermediates of nonylphenol polyethoxylates (NPEO), namely nonylphenol (NP), nonylphenol monoethoxylate (NP1EO) and nonylphenol diethoxylate (NP2EO), together with polychlorinated biphenyls (PCBs) and organic carbon (OC), were determined in sludge-treated soil at 19 time intervals during a 1-yr period after sludge application. The initial concentrations of LAS, NP, NP1EO, and NP2EO in the amended soil were 45, 4.7, 1.1 and 0.1 mg/kg (dry wt.); the residual mean concentrations, 320 d after the last sludge application, were 5, 0.5, 0.1, and 0.01 mg/kg for LAS, NP, NP1EO, and NP2EO, respectively. All of the aromatic surfactants demonstrated a very fast decrease in concentration (>80% within the first month), presumably due to biodegradation, but all of them exhibited a residual concentration in the soil after 320 d. Total PCBs and OC showed no significant soil concentration changes, within the error of analysis, over this same 1-yr period. The pattern of PCB congeners also demonstrated no substantial changes, indicating that they all behave very similarly. The LAS and PCBs were also measured in samples from dated ponds of four sludge-only landfills which were in use at different times over the past 30 yr. The increase in the use of LAS and decrease in the open use of PCBs was reflected in the sludge pond concentrations at one site where there was a continuous record from 1972 to 1986.
- OSTI ID:
- 5946478
- Journal Information:
- Journal of Environmental Quality; (United States), Journal Name: Journal of Environmental Quality; (United States) Vol. 18:4; ISSN JEVQA; ISSN 0047-2425
- Country of Publication:
- United States
- Language:
- English
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540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
AROMATICS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
CARBON
CHEMISTRY
CHLORINATED AROMATIC HYDROCARBONS
CONTAMINATION
ECOLOGICAL CONCENTRATION
ELEMENTS
GROUND DISPOSAL
HALOGENATED AROMATIC HYDROCARBONS
LAND POLLUTION
MANAGEMENT
MATERIALS
MONITORING
NONMETALS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
POLLUTION
QUANTITY RATIO
SANITARY LANDFILLS
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOIL CHEMISTRY
SOILS
SURFACTANTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES