Treatment of CrVI-Containing Mg(OH)2 Nanowaste†
Weizhen Liu
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorFeng Huang Prof.
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorYiqun Liao
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorJing Zhang
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorGuoqiang Ren
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorZangyong Zhuang
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorJinsheng Zhen
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorZhang Lin Prof.
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorChen Wang Prof.
National Center for NanoScience and Technology, Beijing 100080 (China)
Search for more papers by this authorWeizhen Liu
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorFeng Huang Prof.
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorYiqun Liao
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorJing Zhang
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorGuoqiang Ren
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorZangyong Zhuang
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorJinsheng Zhen
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorZhang Lin Prof.
State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 (China), Fax: (+086) 591-8370-5474
Search for more papers by this authorChen Wang Prof.
National Center for NanoScience and Technology, Beijing 100080 (China)
Search for more papers by this authorWe thank Zhong He and colleagues at the Fujian chlorate plant for their help with the industrial pilot-scale tests. We also thank Prof. Guibing Jiang and Prof. Yadong Li for helpful discussions. Financial support for this study was provided by the CAS Foundation (KJCX1.YW.07), NNSF of China (20501020, 40772034), 973 program (2007CB815601), the Special Project on Science and Technology of Fujian Province (2005YZ1026), and the Environmental Science Foundation of Fujian Province (2007-43). F. Huang acknowledges financial support from the Outstanding Youth Fund (50625205).
Graphical Abstract
Sauber getrennt: Die Behandlung nanometergroßer, CrVI-haltiger Mg(OH)2-Abfallpartikel mit dem Mineralisator NaHCO3+Na2CO3 überführt diesen nanoskaligen Abfall in ein nichttoxisches Volumenmaterial und eine konzentrierte Lösung des Schwermetalls. Der Prozess verläuft über zwei Stufen: Zunächst erfolgt eine Desorption von CrVI, der sich ein schnelles Wachstum von Nanokristallen bis zur vollständigen Trennung von den CrVI-Ionen anschließt (siehe Bild).
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