Abstract
As discussed in the previous chapters, conventional techniques of synthesis of fly ash zeolites have not been found successful in synthesizing zeolites of higher grades (i.e., zeolites possessing high cation exchange capacity), mainly due to incomplete zeolitization of the fly ash, the complexities associated with the liquid by-product and the impurities present in the activated residues. The degree of activation of the type fly ash may also depend on its zeolitization potential and hence identification of the most suitable fly ash which would yield products of improved grade becomes a prime focus. In this context, out of the two types of the fly ashes (viz., hopper ash and lagoon ash, available as dry powder at the electrostatic precipitator and as wet powder at lagoons, respectively), which have different characteristics (viz., physical, chemical, mineralogical and morphological), depending upon their disposal site conditions (dry and wet) were used in this study. Based on detailed experimentation, hopper ash has been ascertained to have faster reaction with NaOH and thus yields superior residue with higher cation exchange capacity than the lagoon ash. This could be observed from the X-ray fluorescence results, X-ray diffractograms and micrographs of the two ashes and their products, after hydrothermal treatment. Finally, it has been demonstrated that the hopper ash exhibits better zeolitization potential than the lagoon ash. Furthermore, to synthesize higher grade fly ash zeolites from the hopper ash, a technique which involves a very innovative synthesis process, has been developed and its details are presented in this chapter. Contrary to the conventional hydrothermal technique, this novel technique is based on ‘three-step activation’ of the hopper fly ash by employing hydrothermal as well as fusion activation and hence results in synthesis of zeolites of very high cation-exchange capacity.
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References
Lin, C.F., His, H.C.: Resource recovery of waste fly ash: synthesis of zeolite-like materials. Environ. Sci. Technol. 29, 1109–1117 (1995)
Scott, J., Guang, D., Naeramitmarnsuk, K., Thabuot, M., Amal, R.: Zeolite synthesis from coal fly ash for the removal of lead ions from aqueous solution. J. Chem. Technol. Biotechnol. 77, 63–69 (2001)
Juan, R., Hernández, S., Andrés, J.M., Ruiz, C.: Synthesis of granular zeolitic materials with high cation exchange capacity from agglomerated coal fly ash. Fuel 86, 1811–1821 (2007)
Wałek, T.T., Saito, F., Zhang, Q.: The effect of low solid/liquid ratio on hydrothermal synthesis of zeolites from fly ash. Fuel 87, 194–199 (2008)
Kim, W., Seung, H., Ahn, B.J.: Synthesis of Na-P1 zeolite from coal fly ash. J. Indus. Eng. Chem. 3(3), 185–190 (1997)
Hollman, G.G., Steenbruggen, G., Janssen, J.M.: A two-step process for the synthesis of zeolites from coal fly ash. Fuel 78, 1225–1230 (1999)
Somerset, V.S., Petrik, L.F., White, R.A., Klink, M.J., Iwuoha, E.: The use of X-ray fluorescence (XRF) analysis in predicting the alkaline hydrothermal conversion of fly ash precipitates into zeolites. Talanta 64, 9–14 (2004)
Jha, B., Singh, D.N.: A review on synthesis, characterization and industrial application of flyash zeolites. J. Mater. Edu. 33(1–2), 65–132 (2011)
Jha, B., Singh, D.N.: Zeolitizationcharacteristics of a fly ash from wet- and dry- disposal systems. Acta. Geotech. Slov. 2, 63–71 (2012)
Jha, B., Padmakumar, G.P., Singh, D.N., Iyer, K.: Synthesis of zeolites by fly ash alkali interaction. IN: Proceedings of Indian Geotechnical Conference, Cochi, India, pp. 1089–1092 (2011)
Jha, B., Singh, D.N.: Synthesis of higher grade fly ash zeolites X from fly ash via three-step fusion. Mater. Perform. Charact. 2(1), 1–12 (2013)
Jha, B., Singh, D.N.: Formation of meso- and micro-pores in fly-ash zeolites using three step activation. Acta. Geotech. Slov. 1, 63–69 (2014)
Jha, B., Singh, D.N.: A three step process for purification of fly ash zeolites by hydrothermal treatment. App. Clay. Sci. 90, 122–129 (2014)
Jha, B., Singh, D.N.: Quantification of transitions occurring in a hydrothermally activated fly ash. Mater. Perform. Charact. 3(1), 239–254 (2014)
Jha, B., Koshy, N., Singh, D.N.: Establishing two-stage interactions between fly ash and NaOH by X-ray and infrared analyses. Front. Environ. Sci. Eng. 9(2), 216–221 (2015)
Inada, M., Eguchi, Y., Enomoto, N., Hojo, J.: Synthesis of zeolite from coal fly ashes with different silica-alumina composition. Fuel 84, 299–304 (2005)
Nugteren, H.W., Moreno, N., Sebastia, E., Querol, X.: Determination of the available Si and Al from coal fly ashes under alkaline conditions with the aim of synthesizing zeolites products. International Ash Utilization Symposium, Centre for Applied Energy Research, University of Kentuchy, Paper No. 71 (2001)
Ojha, K., Pradhan, N.C., Samanta, A.N.: Zeolite from fly ash synthesis and characterization. Bull. Mater. Sci. 27(6), 555–564 (2004)
Shigemoto, N., Hayashi, H.: Selective formation of Na-X zeolite from coal fly ash by fusion with sodium hydroxide prior to hydrothermal reaction. J. Mater. Sci. 28, 4781–4786 (1993)
Berkgaut, V., Singer, A.: High capacity cation exchanger by hydrothermal zeolitization of coal fly ash. App. Clay. Sci. 10, 369–378 (1996)
Rungsuk, D., Apiratikul, R., Pavarajarn, V., Pavasant, P.: Zeolite synthesis from coal-fired power plant by fusion method. In: The 2nd International Conference on Sustainable Energy and Environment, 21–23 November, Bangkok, Thailand (2006)
Ma, W., Brown, P.W., Komarneni, S.: Characterization and cation exchange properties of zeolites synthesized from fly ashes. J. Mater. Res. 13(1), 3–7 (1998)
Kolay, P.K., Singh, D.N.: Physical, chemical, mineralogical and thermal properties of cenospheres from a ash lagoon. Cem. Conc. Res. 31(4), 539–542 (2001)
Kolay, P.K., Singh, D.N.: Effect of zeolitization on physic-chemico-mineralogical and geotechnical properties of the lagoon ash. Canad. Geotech. J. 38(5), 1105–1112 (2001)
Fernandez, P.C., Galiano, Y.L., Rodrıguez, P.M.A., Vale, J., Querol, X.: Utilisation of zeolitised coal fly ash as immobilising agent of a metallurgical waste. J. Chem. Technol. Biotechnol. 77, 305–310 (2002)
ASTM D 5550-00 Standard Test: method for specific gravity of soil solids by helium gas pycnometer, Annual Book of ASTM Standard, 04.08, ASTM, Philadelphia, USA
Cerato, A.B., Lutenegger, A.J.: Determination of surface area of fine-grained soils by Ethylene Glycol Monoethyle Ether (EGME) method. Geotech. Test. J. 25(3), 1–7 (2002)
Derkowski, A., Franus, W., Waniak-Nowicka, H., Czimerova, A.: Textural properties versus CEC and EGME retention of Na-X zeolite prepared from fly ash at room temperature. Inter. J. Miner. Process. 82, 57–68 (2006)
ASAP 2020: Accelerated surface area and porosimetry system. Operator’s Manual V3.0, Micromeritics Instrument Corporation, 2004–2006
Gregg, S.J., Sing, K.S.W.: Adsorption, Surface area and Porosity, 2nd ed. Academic Press Inc, London (1982)
ISIRC World soil information data base. Wageningen UR (1992)
Adamczyk, Z., Bialecka, B.: Hydrothermal synthesis of zeolites from polish coal fly ash. Pol. J. Environ. Stud. 14(6), 713–719 (2005)
Somerset, V.S., Petrik, L.F., White, R., Klinka, M.J., Key, D., Iwuoha, E.I.: Alkaline hydrothermal zeolites synthesized from high SiO2 and Al2O3 co-disposal fly ash filtrates. Fuel 84, 2324–2329 (2005)
Querol, X., Moreno, N., Alastuey, A., Juan, R., Andres, J.M., Lopez-Soler, A., Ayora, C., Medinaceli, A., Valero, A.: Synthesis of high ion exchange zeolites from coal fly ash. Geologica. Acta. 5(1), 49–57 (2007)
JCPDS: Joint committee on powder diffraction standards, Philadelphia-19103 (1994)
Rayalu, S., Meshram, S.U., Hasan, M.Z.: Highly crystalline faujasitic zeolites from fly ash. J. Hazard. Mater. B77, 123–131 (2000)
Rayalu, S.S., Udhoji, J.S., Meshram, S.U., Naidu, R.R., Devotta, S.: Estimation of crystallinity in flyash-based zeolite-A using XRD and IR spectroscopy. Curr. Sci. 89(12), 2147–2151 (2005)
Elzea, J.M., Rice, S.B.: TEM and X-ray diffraction evidence for cristobalite and tridymite stacking sequences in opal. Clays Clay Miner. 44, 492–500 (1996)
Cullity, B.D., Stock, S.R.: Elements of X-ray Diffraction, 3rd Edn. Prentice Hall PTR (2001)
Bakoyannakis, D.N., Deliyanni, E.A., Zouboulis, A.I., Matis, K.A., Nalbandian, L., Kehagias, T.: Akaganeite and goethite-type nanocrystals: synthesis and characterization. Micropor. Mesopor. Mater. 59, 35–42 (2003)
Baranova, E.A., Page, Y.L., Ilin, D., Bock, C., MacDougall, B., Mercier, P.H.J.: Size and composition for 1–5 nmϕPtRu alloy nano particles from Cu Kα X-ray patterns. J. Alloys. Compd. 471, 387–394 (2009)
Mimura, H., Yokota, K., Akiba, K., Onodera, Y.: Alkali hydrothermal synthesis of zeolites from coal fly ash and their uptake properties of Cesium ion. J. Nuc. Sci. Technol. 38(9), 766–772 (2001)
Criado, M., Fernandez-Jimenez, A., Palomo, A.: Alkali activation of fly ash: Effect of the SiO2-Na2O ratio, Part I: FT-IR study. Micropor. Mesopor. Mater. 10, 180–191 (2007)
El-Naggar, M.R., El-Kamash, A.M., El-Dessouky, M.I., Ghonaim, A.K.: Two-step method for preparation of NaA-X zeolite blend from fly ash for removal of cesium ions. J. Hazard. Mater. 154, 963–972 (2008)
Iyer, R.S., Scott, J.A.: Power station fly ash-a review of value-added utilization outside of the construction industry. Res. Conserv. Rec. 31, 217–228 (2001)
Kolay, P.K., Singh, D.N.: Characterization of alkali activated lagoon ash and its application for heavy metal retention. Fuel 8, 483–489 (2002)
Lobo, R.F.: Introduction to Structural Chemistry of Zeolites. Marcel Dekker Inc, Delaware, USA (2003)
Kolay, P.K., Singh, D.N., Murti, M.V.R.: Synthesis of zeolites from lagoon ash. Fuel 80, 739–745 (2001)
Fazio, A.D., Brotzu, P., Ghiara, M.R., Fercia, M.L., Lonis, R., Sau, A.: Hydrothermal treatment at low temperature of Sardinian clinoptilolite bearing ignimbrites for increasing cation exchange capacity. Periodico. Di. Mineral. 77, 79–91 (2008)
Rios, C.A.R., Williams, C.D., Roberts, C.L.: A comparative study of two methods for the synthesis of fly ash-based sodium and potassium type zeolites. Fuel 88, 1403–1416 (2009)
Zeng, R., Umana, J.C., Querol, X., Lopez, S.A., Plana, F., Zhuang, X.: Zeolite synthesis from a high Si-Al fly ash from east China. J. Chem. Technol. Biotechnol. 77, 267–273 (2002)
Wang, H., Pinnavaia, J.: MFI zeolite with small and uniform intracrystalmesopores. Angew. Chem. Int. Ed. 45, 7603–7606 (2006)
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Jha, B., Singh, D.N. (2016). Novel Techniques for Synthesis and Characterization of Fly Ash Zeolites. In: Fly Ash Zeolites. Advanced Structured Materials, vol 78. Springer, Singapore. https://doi.org/10.1007/978-981-10-1404-8_5
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