Publication Date:
2015-08-14
Description:
The sorption behavior of chlorantraniliprole (CAP) by biochar and effect of soil extracts on sorptivity in soil–biochar systems were examined. The results showed that biochar amendment could enhance the sorption of CAP in soils. The values of K F increased significantly when the soils were amended with 0.5 % BC850, which were from 1.54 to 196.5. The indigenous sorptivity of biochar was suppressed after it was applied to the soils. The degree of biochar sorptivity attenuation in different soil–biochar systems varied with the properties of soil water soluble matters. Sorption of CAP by biochar from the five soil extracts was found to be lower than that from a CaCl 2 solution. The calculated K d values at C w of 0.01 mg kg −1 for biochar sorption of CAP from CaCl 2 solution were 21.4–26.6 times of that from soil extracts. Aging of biochar in soil extract reduced CAP sorption by up to 85 %.
Print ISSN:
0007-4861
Electronic ISSN:
1432-0800
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Medicine
