We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Biocalcification Mediated Reduction of PAHs Bioavailability in Artificially Contaminated Soil.
- Authors
Mahanty, Biswanath; Kim, Subin; Kim, Chang
- Abstract
Apart from natural CO sequestration, biocalcification process can reduce bioavailability of certain pollutants. In the present study, experiments were conducted to evaluate the change in bioavailability for three polycyclic aromatic hydrocarbons (PAHs) - anthracene (Ant), phenanthrene (Phe) and pyrene (Pyr) - either in normal soil extract that was spiked with PAHs (SESP) or spiked soil, after chemical calcification or biocalcification process. Results suggested that PAHs extractability in SESP (Ant: 2-4 mg/l, Phe: 3-6 mg/l and Pyr: 4.5-9 mg/l) after chemical precipitation of carbonate were not statistically different when compared to negative controls. However in biocalcification experiment the difference was statistically significant when conducted with SESP ( P = 0.0425, α = 0.10) or soil ( P = 0.035, α = 0.10). Supporting experiment revealed that the presence of microbial cells and sequence of Ca, CO addition was important in determining the extent in PAHs bioavailability reduction.
- Subjects
POLYCYCLIC aromatic hydrocarbons; CALCIFICATION; BIOAVAILABILITY; SOIL pollution; CARBON monoxide
- Publication
Water, Air & Soil Pollution, 2013, Vol 224, Issue 3, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-013-1479-3