title: Release of pentachlorophenol from black carbon-inclusive sediments under different environmental conditions.
abstract: To investigate the feasibility of using black carbon (BC) in the control of hydrophobic organic contaminants (HOCs) in sediment, we added BCs from various sources (rice straw charcoal (RC), fly ash (FC) and soot (SC)) to sediment to create different BC-inclusive sediments and studied the release of pentachlorophenol (PCP) in the sediments under different condition. Different pH values had no obvious effect on the release of PCP in BC-inclusive sediment, but solid/liquid ratio, temperature, salinity and dissolved organic matter (DOM) content had significant influences on the release of PCP in all sediments except the RC-inclusive sediment. Adding 2% RC to sediment resulted in a 90% decrease in PCP release, which was a greater decrease than observed with FC- and SC-inclusive sediments. Therefore, from the standpoint of HOC release, the application of RC is feasible for organic pollution control in the water environment.
authors.affiliation: Department of Environmental Engineering, Zhejiang University, Hangzhou, China.
authors.forename: Liping
authors.initials: L
authors.lastname: Lou
authors.forename: Ling
authors.initials: L
authors.lastname: Luo
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yang
authors.forename: Guanghuan
authors.initials: G
authors.lastname: Cheng
authors.forename: Bei
authors.initials: B
authors.lastname: Xun
authors.forename: Xinhua
authors.initials: X
authors.lastname: Xu
authors.forename: Yingxu
authors.initials: Y
authors.lastname: Chen
mesh_terms: D002713:Chlorine / Q000737:chemistry; D004777:Environment; D004785:Environmental Pollutants / Q000032:analysis / Q000737:chemistry; D019015:Geologic Sediments / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D057927:Hydrophobic and Hydrophilic Interactions; D010416:Pentachlorophenol / Q000032:analysis / Q000737:chemistry*; D054712:Salinity; D053260:Soot / Q000737:chemistry*; D013696:Temperature
chemical_list: D004785:Environmental Pollutants; D053260:Soot; D002713:Chlorine; D010416:Pentachlorophenol