title: Cosorption of phenanthrene and mercury(II) from aqueous solution by soybean stalk-based biochar.
abstract: Soybean [Glycine max (L.) Merr.] stalk-based biochar was prepared using oxygen-limited pyrolysis. We evaluated phenanthrene (PHE) and Hg(II) sorption, from single and binary component solutions, onto prepared biochar. We found that the prepared biochar efficiently removed PHE and Hg(II) from aqueous solutions. The isotherms for PHE and Hg(II) sorption could be described using linear and Tóth models, respectively, both with high regression coefficients (R(2) > 0.995). When PHE and Hg(II) coexisted in an aqueous solution, we observed direct competitive sorption, each one suppressing another. Our results provide insight into the recycling of agricultural residues, and also a new application for removal of polycyclic aromatic hydrocarbons and heavy metals from contaminated water utilizing biochar from agricultural residue.
authors: Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
authors: Huoliang
authors: H
authors: Kong
authors: Jiao
authors: J
authors: He
authors: Yanzheng
authors: Y
authors: Gao
authors: Huifang
authors: H
authors: Wu
authors: Xuezhu
authors: X
authors: Zhu
mesh_terms: D000327:Adsorption; D002606:Charcoal / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000295:instrumentation / Q000379:methods*; D008628:Mercury / Q000737:chemistry*; D010616:Phenanthrenes / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry; D013025:Glycine max / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D010616:Phenanthrenes; D014874:Water Pollutants, Chemical; C540010:biochar; D002606:Charcoal; C031181:phenanthrene; D008628:Mercury