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Treatment of simulated electroplating wastewater containing Ni(II)-EDTA by Fenton oxidation combined with recycled ferrite process under ambient temperature.
Wang, Lei; Luo, Zhijun; Wei, Jing; Zhou, Xiangtong; Zhang, Xiaoying; Ni, Huicheng; Wang, Jing; Song, Youye; Wu, Zhiren.
Afiliación
  • Wang L; School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China.
  • Luo Z; School of Environmental Resources, AnQing Normal University, No.1318 Jixian North Road, Anqing, 246133, China.
  • Wei J; School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China. lzj@ujs.edu.cn.
  • Zhou X; School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China.
  • Zhang X; School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China.
  • Ni H; School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China.
  • Wang J; School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China.
  • Song Y; School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China.
  • Wu Z; School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China.
Environ Sci Pollut Res Int ; 26(29): 29736-29747, 2019 Oct.
Article en En | MEDLINE | ID: mdl-31402438
Developing low cost and efficient method for the treatment of electroplating wastewater containing heavy metals complexed with chelating agent has attracted increasing attention in industrial wastewater treatment. This study involved a system combining Fenton oxidation (FO) and recycled ferrite (RF) process for treating synthetic solution containing Ni(II)-EDTA at ambient temperature. In this system, the FO reaction can produce hydroxyl radicals with high redox potential to decomplex the metal-organic complexes and degrade the organics, thereby enhancing the removal efficiency of heavy metals. The RF process is to incorporate the non-iron metal into the spinel ferrites at room temperature, and stabilize the sludge. As a result, the toxicity characteristic leaching procedure can fulfill the relevant standards. Furthermore, the ferrous ions in Fenton reaction could be used as the source of irons in RF process. After treatment by the combined process, the effluent water fulfills the relevant standard in China. In comparison with conventional alkaline precipitation, the sludge sedimentation velocity of FO-RF is 2.16 times faster than that of conventional alkaline precipitation and the volume of sludge is reduced by half, which strongly demonstrated the advantages of the presented FO-RF system and indicated the huge potential for the treatment of EDTA-chelated nickel.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compuestos Férricos / Eliminación de Residuos Líquidos / Ácido Edético / Galvanoplastia / Níquel Tipo de estudio: Guideline Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compuestos Férricos / Eliminación de Residuos Líquidos / Ácido Edético / Galvanoplastia / Níquel Tipo de estudio: Guideline Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania