American Society of Civil Engineers


Retention and Distribution of 1-Naphthol and Naphthol Polymerization Products on Surface Soils


by Fangxiang Xu, (Grad. Student, Dept. of Civ. Engrg., 2118 Fiedler Hall, Kansas State Univ., Manhattan, KS 66506-5000) and Alok Bhandari, P.E., (corresponding author), M.ASCE, (Assoc. Prof., Dept. of Civ. Engrg., 2118 Fiedler Hall, Kansas State Univ., Manhattan, KS 66506-5000 E-mail: bhandari@ksu.edu)

Journal of Environmental Engineering, Vol. 129, No. 11, November 2003, pp. 1041-1050, (doi:  http://dx.doi.org/10.1061/(ASCE)0733-9372(2003)129:11(1041))

     Access full text
     Purchase Subscription
     Permissions for Reuse  

Document type: Journal Paper
Abstract: Sorption and extractability of naphthol and naphthol polymerization products (NPP) were evaluated in two surface soils. NPP were generated by the addition of horseradish peroxidase and H2O2 to naphthol solutions in contact with the surface soils. While NPP retention on the forest soil was lower compared to the parent naphthol, no difference in sorption of naphthol and NPP was observed in the agricultural soil. The agricultural soil retained more naphthol and NPP than the forest soil. The NPP sorption behavior noted in this study was in contrast to that of phenol polymerization products observed by other researchers. The presence of phenol and 2,4-dichlorophenol as cosolutes had no significant impact on naphthol or NPP retention on the two soils, and naphthol was more easily extracted from both soils whenever phenol was present as a cosolute. Characterization of the naphthol polymerization products using reverse-phase high-pressure liquid chromatography and octanol-water partitioning indicated that significant fractions of the water-soluble and insoluble NPP were comprised of oligomers that were more polar than the parent 1-naphthol. This decrease in polarity upon polymerization is believed to have been responsible for the NPP retention and binding behavior observed in this study.


ASCE Subject Headings:
Enzymes
Hazardous wastes
Hydrocarbons
Soil treatment
Toxicity