Enhanced effect of HAH on citric acid-chelated Fe(II)-catalyzed percarbonate for trichloroethene degradation
作者: Xiaori FuMark L. BrusseauXueke ZangShuguang LuXiang ZhangUsman FarooqZhaofu QiuQian Sui
作者单位: 1East China University of Science and Technology
2The University of Arizona
3Shanghai Institute of Geological Engineering Exploration
刊名: Environmental Science and Pollution Research, 2017, Vol.24 (31), pp.24318-24326
来源数据库: Springer Nature Journal
DOI: 10.1007/s11356-017-0070-7
关键词: Sodium percarbonateHydroxylamine hydrochlorideCitric acidISCOTrichloroetheneGroundwater remediation
原始语种摘要: This work demonstrates the impact of hydroxylamine hydrochloride (HAH) addition on enhancing the degradation of trichloroethene (TCE) by the citric acid (CA)-chelated Fe(II)-catalyzed percarbonate (SPC) system. The results of a series of batch-reactor experiments show that TCE removal with HAH addition was increased from approximately 57 to 79% for a CA concentration of 0.1 mM and from 89 to 99.6% for a 0.5 mM concentration. Free-radical probe tests elucidated the existence of hydroxyl radical (HO) and superoxide anion radical (O2 •-) in both CA/Fe(II)/SPC and HAH/CA/Fe(II)/SPC systems. However, higher removal rates of radical probe compounds were observed in the HAH/CA/Fe(II)/SPC system, indicating that HAH addition enhanced the generation of both free...
全文获取路径: Springer Nature  (合作)
影响因子:2.618 (2012)

  • degradation 减嚣夷酌
  • II Interactive Interface
  • removal 消去
  • percarbonate 过碳酸盐
  • citric 柠檬性的
  • SPC Stored Program Control
  • impact 冲击碰撞
  • groundwater 潜水
  • catalyzed 催化的
  • higher