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- W2845599823 abstract "Polychlorinated biphenyls (PCBs) are persistent hydrophobic compounds that are present widely in the environment. Due to poorly maintained hazardous waste sites, electrical equipment leakage, and illegal disposal, PCBs were deposited in sediments present in bays and estuaries. PCBs continuously partition into the overlying water posing a long-term exposure risk to the environment and human health. This study demonstrates the efficacy of carbon-based materials in reducing the partitioning of PCBs from sediment to the water column. Both existing carbon-based materials [activated carbon (AC), black carbon (BC)] and emerging nanomaterials [graphene (GE), graphene oxide (GO), carbon nanotube (CNT)] were tested to determine their efficacy to bind PCBs in sediment. The comparison between the sorbents was accomplished by examining their distribution coefficient (Ks). The magnitude of Ks provides an idea about the bioavailable fraction of PCBs in the system; the higher the Ks, the greater the strength of sorption by the sorbent and therefore, the lower the PCB bioavailability. Results from the sorption experiment indicated that CNT performed the best overall followed by AC, BC, GO and GE. Results indicated that the Ks value for CNT was 1.16, 1.15, 1.13 and 1.04 log units greater than GE, GO, BC, and AC." @default.
- W2845599823 created "2018-07-19" @default.
- W2845599823 creator A5031816361 @default.
- W2845599823 creator A5061660870 @default.
- W2845599823 date "2018-12-01" @default.
- W2845599823 modified "2023-09-23" @default.
- W2845599823 title "Efficacy of carbon-based materials for remediating polychlorinated biphenyls (PCBs) in sediment" @default.
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- W2845599823 doi "https://doi.org/10.1016/j.scitotenv.2018.06.360" @default.
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