Journal
ENVIRONMENTAL POLLUTION
Volume 143, Issue 2, Pages 212-220Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2005.11.038
Keywords
soil amendment; humic acids; metal complexing capacities; stability constants; fluorescence spectroscopy
Categories
Ask authors/readers for more resources
The effect of the consecutive annual additions of pig slurry at rates of 0 (control), 90 and 150 m(3) ha(-1) yr(-1) after a 7-year period on the Cu(II) and Zn(II) binding behavior of soil HAs was investigated in a field experiment. A fluorescence titration method and a single site model were used for determining metal ion complexing capacities and stability constants of metal ion complexes of HAs isolated from pig slurry and unamended and amended soils. With respect to control soil HA, pig-slurry HA featured much smaller Cu(II) and Zn(II) binding capacities and stability constants. Pig-slurry application to soil decreased Cu(II) and Zn(II) complexing capacities and binding affinities of soil HA. These effects increased with increasing the rate per year of PS application to soil, and are expected to have a large impact on bioavailability, mobilization, and transport of Cu(II) and Zn(II) ions in pig slurry-amended soils. (c) 2005 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available