Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue
Zhongguo LI, Wenyi YUAN
Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue
Sodium-jarosite is a type of industrial waste that results from hydrometallurgy and inorganic chemical production. The iron content of jarosite residue may be utilized to produce theoretically the ferrous materials. The difficulty in production of high quality poly-ferric sulfate (PFS) is how to remove impurities contained in jarosite residue. This paper proposes a novel method for disposing sodium-jarosite which can be used to synthesize PFS, a very important reagent for treating waste water. The method consists of a two-step leaching experimental procedures. The first step, pre-leaching process, is to remove impurity metals by strictly controlling the leaching conditions. The acid concentration of acidic water was adjusted according to the content of impurity metals in sodium-jarosite and the leaching temperature was controlled at 25°C. The second step is to decompose sodium-jarosite to provide enough ferric ions for synthesizing PFS, the concentrated sulfuric acid consumption was 0.8 mL·g-1 sodium-jarosite and the leaching temperature was above 60°C. In the experiment, decomposing iron from sulfate sodium-jarosite can take the place of ferric martials for synthesizing PFS. Results show that the PFS synthesized from sodium-jarosite had a high poly-iron complex Fe4.67(SO4)6(OH)2·20H2O. Further, the PFS product’s specifications satisfied the national standard of China.
sodium-jarosite residue / utilization / poly-ferric sulfate (PFS)
[1] |
Bigham J M, Schwertmann U, Traina S J, Winland R L, Wolf M. Schwertmannite and the chemical modeling of iron in acid sulfate waters. Geochimica et Cosmochimica Acta, 1996, 60(12): 2111–2121
CrossRef
Google scholar
|
[2] |
Asta M P, Cama J, Martínez M, Giménez J. Arsenic removal by goethite and jarosite in acidic conditions and its environmental implications. Journal of Hazardous Materials, 2009, 171(1–3): 965–972
CrossRef
Pubmed
Google scholar
|
[3] |
Johnston S G, Burton E D, Keene A F, Planer-Friedrich B, Voegelin A, Blackford M G, Lumpkin G R. Arsenic mobilization and iron transformations during sulfidization of As(V)-bearing jarosite. Chemical Geology, 2012, 334(12): 9–24
CrossRef
Google scholar
|
[4] |
Brandl H, Faramarzi M A. Microbe-metal-interactions for the biotechnological treatment of metal-containing solid waste. China Particuology Science and Technology Particles, 2006, 4(2): 93–97
CrossRef
Google scholar
|
[5] |
Bosecker K. Microbial leaching in environmental clean-up programmes. Hydrometallurgy, 2001, 59(2–3): 245–248
CrossRef
Google scholar
|
[6] |
Solisio C, Lodi A, Veglio F. Bioleaching of zinc and aluminium from industrial waste sludges by means of Thiobacillus ferrooxidans. Waste Management (New York, N.Y.), 2002, 22(6): 667–675
CrossRef
Pubmed
Google scholar
|
[7] |
Lang D J, Binder C R, Stauffacher M, Ziegler C, Schleiss K, Scholz R W. Material and money flows as a means for industry analysis of recycling schemes A case study of regional bio-waste management. Resources, Conservation and Recycling, 2006, 49(2): 159–190
CrossRef
Google scholar
|
[8] |
Smith A M L, Hudson-Edwards K A, Dubbin W E, Wright K. Dissolution of jarosite [KFe3(SO4)2(OH)6] at pH 2 and 8: Insights from batch experiments and computational modeling. Geochimica et Cosmochimica Acta, 2006, 70(3): 608–621
CrossRef
Google scholar
|
[9] |
Elwood Madden M E, Madden A S, Rimstidt J D, Zahrai S, Kendall M R, Miller M A. Jarosite dissolution rates and nanoscale mineralogy. Geochimica et Cosmochimica Acta, 2012, 91: 306–321
CrossRef
Google scholar
|
[10] |
Pernitsky D J, Edzwald J K. Selection of alum and polyaluminum coagulants: principles and applications. Journal of Water Supply: Research and Technology—Aqua, 2006, 55 (2): 121–141
|
[11] |
Bratby J. Coagulation and Flocculation in Water and Wastewater Treatment. London: IWA Publishing, 2006
|
[12] |
Wu Y F, Liu W, Gao N Y, Tao T. A study of titanium sulfate flocculation for water treatment. Water Research, 2011, 45(12): 3704–3711
CrossRef
Google scholar
|
[13] |
Xiao F, Lam K M, Li X Y, Zhong R S, Zhang X H. PIV characterisation of flocculation dynamics and floc structure in water treatment. Colloids and Surfaces A-Physicochemical And Engineering Aspects, 2011, 379(1–3): 27–35
CrossRef
Google scholar
|
[14] |
de Godos I, Guzman H O, Soto R, García-Encina P A, Becares E, Muñoz R, Vargas V A. Coagulation/flocculation-based removal of algal–bacterial biomass from piggery wastewater treatment. Bioresource Technology, 2011, 102(2): 923–927
CrossRef
Google scholar
|
[15] |
Li F T, Ji G D, Xue G. The preparation of inorganic coagulant-poly ferric sulfate. Journal of Chemical Technology and Biotechnology, 1997, 68(2): 219–221
CrossRef
Google scholar
|
[16] |
Fu Y, Yu S L. Characterization and coagulation performance of solid poly-silicic-ferric (PSF) coagulant. Journal of Non-Crystalline Solids, 2007, 353(22–23): 2206–2213
CrossRef
Google scholar
|
[17] |
Yan R. Water Treatment Agent Applications. Beijing: Chemical Industry Press, 2000, 105–108 (in Chinese)
|
[18] |
Yan R. Water-Soluble Polymers. Beijing: Chemical Industry Press, 1998 (In Chinese)
|
[19] |
Menezes J C S S, Silva R A, Arce I S, Schneider I A H. Production of a poly-ferric sulphate chemical coagulant by selective precipitation of iron from acidic coal mine drainage. Mine Water and the Environment, 2009, 28(4): 311–314
CrossRef
Google scholar
|
[20] |
Cheng W P, Chi F H. A study of coagulation mechanisms of polyferric sulfate reacting with humic acid using a fluorescence-quenching method. Water Research, 2002, 36(18): 4583–4591
CrossRef
Google scholar
|
[21] |
Li F T, Ji G D, Xue G. The preparation of inorganic coagulant polyferric sulphate. Journal of Chemical Technology and Biotechnology, 1997, 123(9): 859–864
CrossRef
Google scholar
|
[22] |
Wang H M, Min X B, Chai L Y, Shu Y D. Biological preparation and application of poly-ferric sulfate flocculant. Transactions of Nonferrous Metals Society of China, 2011, 21(11): 2542–2547
CrossRef
Google scholar
|
/
〈 | 〉 |