TY - JOUR
T1 - Petroleum contaminated soil in Oman
T2 - Evaluation of bioremediation treatment and potential for reuse in hot asphalt mix concrete
AU - Jamrah, Ahmad
AU - Al-Futaisi, Ahmed
AU - Hassan, Hossam
AU - Al-Oraimi, Salem
PY - 2007/1
Y1 - 2007/1
N2 - This paper presents a study that aims at evaluating the leaching characteristics of petroleum contaminated soils as well as their application in hot mix asphalt concrete. Soil samples are environmentally characterized in terms of their total heavy metals and hydrocarbon compounds and leachability. The total petroleum hydrocarbon (TPH) present in the PCS before and after treatment was determined to be 6.8% and 5.3% by dry weight, indicating a reduction of 1% in the TPH of PCS due to the current treatment employed. Results of the total heavy metal analysis on soils indicate that the concentrations of heavy metals are lower when extraction of the soil samples is carried out using hexane in comparison to TCE. The results show that the clean soils present in the vicinity of contaminated sites contain heavy metals in the following decreasing order: nickel (Ni), followed by chromium (Cr), zinc (Zn), copper (Cu), lead (Pb), and vanadium (V). The current treatment practice employed for remediation of the contaminated soil reduces the concentrations of nickel and chromium, but increases the concentrations of all remaining heavy metals.
AB - This paper presents a study that aims at evaluating the leaching characteristics of petroleum contaminated soils as well as their application in hot mix asphalt concrete. Soil samples are environmentally characterized in terms of their total heavy metals and hydrocarbon compounds and leachability. The total petroleum hydrocarbon (TPH) present in the PCS before and after treatment was determined to be 6.8% and 5.3% by dry weight, indicating a reduction of 1% in the TPH of PCS due to the current treatment employed. Results of the total heavy metal analysis on soils indicate that the concentrations of heavy metals are lower when extraction of the soil samples is carried out using hexane in comparison to TCE. The results show that the clean soils present in the vicinity of contaminated sites contain heavy metals in the following decreasing order: nickel (Ni), followed by chromium (Cr), zinc (Zn), copper (Cu), lead (Pb), and vanadium (V). The current treatment practice employed for remediation of the contaminated soil reduces the concentrations of nickel and chromium, but increases the concentrations of all remaining heavy metals.
KW - Heavy metals
KW - Hot asphalt mix
KW - Hydrocarbons
KW - Petroleum contaminated soil
KW - Toxicity characteristic leaching procedure
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U2 - 10.1007/s10661-006-9230-9
DO - 10.1007/s10661-006-9230-9
M3 - Article
C2 - 16957858
AN - SCOPUS:33847737709
SN - 0167-6369
VL - 124
SP - 331
EP - 341
JO - Environmental Monitoring and Assessment
JF - Environmental Monitoring and Assessment
IS - 1-3
ER -