title: Suppression of Chlorantraniliprole Sorption on Biochar in Soil-Biochar Systems.
abstract: 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 CaCl2 solution. The calculated K d values at C w of 0.01 mg kg(-1) for biochar sorption of CAP from CaCl2 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 %.
authors.affiliation: Pesticide Biology and Ecology Research Center, Jiangsu Academy of Agricultural Sciences, Nanjing, 20014, China.
authors.forename: Ting-Ting
authors.initials: TT
authors.lastname: Wang
authors.forename: Yi-Song
authors.initials: YS
authors.lastname: Li
authors.forename: Alice C
authors.initials: AC
authors.lastname: Jiang
authors.forename: Meng-Xiao
authors.initials: MX
authors.lastname: Lu
authors.forename: Xian-Jin
authors.initials: XJ
authors.lastname: Liu
authors.forename: Xiang-Yang
authors.initials: XY
authors.lastname: Yu
mesh_terms: D000327:Adsorption; D002606:Charcoal / Q000737:chemistry*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000737:chemistry*; D062367:ortho-Aminobenzoates / Q000737:chemistry*
chemical_list: D012987:Soil; D012989:Soil Pollutants; C540010:biochar; D062367:ortho-Aminobenzoates; D002606:Charcoal; C517733:chlorantranilipole