In situ XANES study of removal of heavy metals from laboratory wasteliquid by the ferrite process

作者: Chiu-Hui Tu , Yuh-Jeen Huang , Cheng-Hsien Tsai , C.-J. Monica Chin

DOI: 10.1016/J.ELSPEC.2006.12.033

关键词: EffluentNuclear chemistryMetallurgyZincIn situHeavy metalsAbsorption (chemistry)Ferrite (iron)XANESChromiumMaterials science

摘要: Abstract Heavy metals in the laboratory wasteliquid can be recovered as stable and economic ferrite by process. The spectrum of X-ray absorption near edge structure (XANES) specifically shows that 92% Cr(OH) 3 8% CrCl 2 original are converted to 70% Cr O 30% precipitates concentrations total chromium, lead zinc also dropped from 383,000, 20.9 277 ppb, respectively, lower than effluent standards Environmental Protection Administration (EPA) Taiwan. XRD (X-ray diffraction) analysis chromium is achieved at pH > 9. On other hand, XANES spectra situ experiment show there were 52% Fe 4 precipitates.

参考文章(16)
J. Hormes, R. Chauvistré, W. Schmitt, M. Pantelouris, Examples for the Industrial Use of Synchrotron Radiation Acta Physica Polonica A. ,vol. 82, pp. 37- 50 ,(1992) , 10.12693/APHYSPOLA.82.37
J O Leckie, K F Hayes, M M Benjamin, REMOVAL OF TOXIC METALS FROM POWER-GENERATION WASTE STREAMS BY ADSORPTION AND COPRECIPITATION Journal of Water Pollution Control Federation. ,vol. 54, pp. 1472- 1481 ,(1982)
Nataša Zabukovec Logar, Mario Šiljeg, Iztok Arčon, Anton Meden, Nataša Novak Tušar, Štefica Cerjan Štefanović, Janez Kovač, Venčeslav Kaučič, Sorption of Cr3+ on clinoptilolite tuff: A structural investigation Microporous and Mesoporous Materials. ,vol. 93, pp. 275- 284 ,(2006) , 10.1016/J.MICROMESO.2006.02.026
Hans G. Seiler, Helmut Sigel, Astrid Sigel, Alan Townshend, Handbook on toxicity of inorganic compounds Analytica Chimica Acta. ,vol. 237, pp. 511- ,(1990) , 10.1016/S0003-2670(00)83960-4
Laurie S. McNeill, Marc Edwards, Predicting As removal during metal hydroxide precipitation Journal - American Water Works Association. ,vol. 89, pp. 75- 86 ,(1997) , 10.1002/J.1551-8833.1997.TB08163.X
She-Tin Wong, Jyh-Fu Lee, Soofin Cheng, Chung-Yuan Mou, None, In-situ study of MCM-41-supported iron oxide catalysts by XANES and EXAFS Applied Catalysis A-general. ,vol. 198, pp. 115- 126 ,(2000) , 10.1016/S0926-860X(99)00516-5
B. Demirel, O. Yenigün, M. Bekbölet, Removal of Cu, Ni and Zn from Wastewaters by the Ferrite Process Environmental Technology. ,vol. 20, pp. 963- 970 ,(1999) , 10.1080/09593332008616891
A Pantelouris, H Modrow, M Pantelouris, J Hormes, D Reinen, The influence of coordination geometry and valency on the K-edge absorption near edge spectra of selected chromium compounds Chemical Physics. ,vol. 300, pp. 13- 22 ,(2004) , 10.1016/J.CHEMPHYS.2003.12.017