title: Mechanism of and relation between the sorption and desorption of nonylphenol on black carbon-inclusive sediment.
abstract: Correlation between the sorption and desorption of nonylphenol (NP) and binary linear regression were conducted to reveal the underlying mechanism of and relation between sorption domains and desorption sites in black carbon (BC)-amended sediment. The sorption and desorption data could be fitted well using dual-mode (R(2) = 0.971-0.996) and modified two-domain model (R(2) = 0.986-0.995), respectively, and there were good correlations between these two parts of parameters (R(2) = 0.884-0.939, P < 0.01). The NP percentage in desorbable fraction was almost equal to that of the partition fraction, suggesting the desorbed NP came from linear partition domain, whereas the resistant desorption NP was segregated in nonlinear adsorption sites, which were dominated by pores in BC-amended sediment. Our investigation refined theory about the relation between sorption domains and desorption sites in sediment and could be used to predict the release risk of NP using sorption data when BC is used for NP pollution control.
authors.affiliation: Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China.
authors.forename: Lou
authors.initials: L
authors.lastname: Liping
authors.affiliation: Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Guanghuan
authors.affiliation: Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China.
authors.forename: Deng
authors.initials: D
authors.lastname: Jingyou
authors.affiliation: Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China.
authors.forename: Sun
authors.initials: S
authors.lastname: Mingyang
authors.affiliation: Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China.
authors.forename: Chen
authors.initials: C
authors.lastname: Huanyu
authors.affiliation: Hangzhou Research Institute of Environment Science, Hangzhou 310014, PR China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Qiang
authors.affiliation: Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, PR China. Electronic address: xuxinhua@zju.edu.cn.
authors.forename: Xu
authors.initials: X
authors.lastname: Xinhua
mesh_terms: D000327:Adsorption; D052244:Endocrine Disruptors / Q000032:analysis / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods; D019015:Geologic Sediments / Q000737:chemistry*; D008956:Models, Chemical; D010636:Phenols / Q000032:analysis / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis / Q000737:chemistry*; D053260:Soot / Q000032:analysis / Q000737:chemistry*
chemical_list: D052244:Endocrine Disruptors; D010636:Phenols; D012989:Soil Pollutants; D053260:Soot; C025256:nonylphenol
keywords: Black carbon (BC); Desorption; Nonylphenol (NP); Sediment; Sorption