Su, Yuh-fanYuh-fanSuHsu, Chung-YuChung-YuHsuYANG-HSIN SHIH2018-09-102018-09-102012-09https://www.scopus.com/pages/publications/84863101974?origin=resultslisthttp://scholars.lib.ntu.edu.tw/handle/123456789/370857The effect of several anions and cations normally co-present in soil and groundwater contamination sites on the degradation kinetics and removal efficiency of hexachlorobenzene (HCB) by nanoscale zero-valent iron (NZVI) particles was examined. The degradation kinetics was not influenced by the HCO3-, Mg2+, and Na+ ions. It was enhanced in the presence of the Cl- and SO42- ions due to their corrosion promotion. The NO3- competes with HCB so it inhibits the degradation reaction. The Fe2+ ions would inhibit the degradation reaction due to passivation layer formed, while it was enhanced in the presence of Cu2+ ions resulted from the reduced form of copper on NZVI surfaces. These observations lead to a better understanding of HCB dechlorination with NZVI particles and can facilitate the remediation design and prediction of treatment efficiency of HCB at remediation sites.AnionsCationsDegradationHexachlorobenzene (HCB)Nanoscale zero-valent iron (NZVI)[SDGs]SDG6journal article10.1016/j.chemosphere.2012.05.0362-s2.0-84863101974