Enhancing pyrene mineralization in contaminated soil by the addition of humic acids or composted contaminated soil
Haderlein, Legros, Ramsay (2001) Enhancing pyrene mineralization in contaminated soil by the addition of humic acids or composted contaminated soil Appl Microbiol Biotechnol (IF: 4.3) 56(3-4) 555-9Abstract
The addition of composted PAH-contaminated soil to PAH-contaminated soil spiked with 14C-labeled pyrene resulted in rapid mineralization of pyrene (more than 57% after 21 days compared with 3.4% in un-amended soil). The addition of the humic acid fraction of the composted soil also increased the mineralization potential of the soil significantly, but to a lesser extent (37.5% mineralization after 106 days compared with 20.6% in unamended soil). Increasing the humic acid concentration increased mineralization up to a maximum of more than three times the unamended rate, after which the rate of pyrene mineralization decreased, possibly due to inhibitory pH or concentrations of salts. The amendment of PAH-contaminated soil with materials containing humic acids or humic acid extracts is suggested as a method of bioremediation.
Links
http://www.ncbi.nlm.nih.gov/pubmed/11549037http://dx.doi.org/10.1007/s002530000520
