Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
Acrylamide/acrylic acid copolymers (AAm/AA) have been synthesized by microemulsion polymerization in absence and presence of trivalent cations Al+3 and Fe+3 . Starch materials were obtained by introducing cations Al+3 and Fe+3 , in the form of aqueous solutions of sulphates(VI) (modif. starch/Me+3 ), into the oxidized starch (modif. starch). The flocculation performance of obtained polyacrylamide copolymers and the one based on the natural polymer was compared with the performance of the commercial AAm/AA flocculant (CF). All materials were characterized by capillary viscometry, FTIR and DSC methods. An aqueous suspension of talc was used for the flocculation studies. The flocculation effectiveness was evaluated on the basis of reduction of suspension extinction and the sludge volume. It was found that synthesized AAm/AA/Me+3 copolymers and modif. starch/Me+3 materials exhibit better flocculation properties for a model talc suspension than a commercially available floculant.
Czasopismo
Rocznik
Tom
Strony
96--101
Opis fizyczny
Bibliogr. 31 poz., rys.
Twórcy
autor
- West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Polymer Institute, ul. Pulaskiego 10, 70-322 Szczecin, Poland
Bibliografia
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- 2. Chang, Q., Hao, X. & Duan, L. (2008). Synthesis of crosslinked starch-graft-polyacrylamide-co-sodium xanthate and its performance in wastewater treatment. J. Hazard. Mater., 159, 2-3, 548-553. DOI: 10.1016/j.jhazmat.2008.02.053.
- 3. Churchman, G.J. (2002). Formation of complexes between bentonite and different cationic polyelectrolytes and their use as sorbents for non-ionic and anionic pollutants. Appl. Clay. Sci. 21, 3-4, 177-189. DOI: 10.1016/S0169-1317(01)00099-0.
- 4. Qian, J.W., Xiang, X.J., Yang, W.Y., Wang, M., Zheng, B.Q. (2004). Flocculation performance of different polyacrylamide and the relation between optimal dose and critical concentration, Eur. Polym. J. 40, 8, 1699-1704. DOI: 10.1016/j.eurpolymj.2004.03.009.
- 6. Yang, W.Y., Qian, J.W. & Shen, Z.Q. (2004). A novel flocculant of Al(OH)3-polyacrylamide ionic hybrid. J. Colloid and Interface Sci. 273, 2, 400-405. DOI: 10.1016/j.jcis.2004.02.002.
- 7. Drzycimska, A., Schmidt, B. & Spychaj, T. (2007). Modified acrylamide copolymers as flocculants for model aqueous suspensions. Polish J. Chem. Technol. 2, 9, 10-14. 10.2478/v10026-007-0015-x.
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- 9. Wang, S., Li, E., Du, Z., Li, J. & Cheng, F. (2018). Preparation of a PASi-P(AM-ADB) hybrid flocculant and efficiently removal bio-refractory organics from coking wastewater. Envir. Chem. Lett. Online 05 September, 1-6. DOI: org/10.1007/s10311-018-0796-6.
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- 13. Mishra , S., Mukul, S., Sen, G. & Jha, U. (2011). Microwave assisted synthesis of polyacrylamide grafted starch (St-g--PAM) and its applicability as flocculant for water treatment. Int. J. Biol. Macromol. 48,(1), 106-111. DOI: org/10.1016/j. ijbiomac.2010.10.004.
- 14. Mittal, H., Jindal, R., Kaith, B.S., Maity, A. & Ray, S.S. (2015). Flocculation and adsorption properties of biodegradable gum-ghatti-grafted poly(acrylamide-co-methacrylic acid) hydrogels. Carbohydr Polym. 115, 617-628. DOI: org/10.1016/j. carbpol.2014.09.026.
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- 16. Zhang, Y., Kou, R. & Lv, S. et al. (2015) Effect of Mesh Number of Wood Powder and Ratio of Raw Materials on Properties of Composite Material of Starch/Wood Powder. BioResources. 10, 5356-5368. DOI: 10.1515/revce-2015-0047.
- 17. Ashogbon, A.O. & Akintayo, E.T. (2014). Recent trend in the physical and chemical modification of starches from different botanical sources: A review. Starch-Stärke. 66, 41-57. DOI: 10.1002/star.201300106.
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- 19. Shah, N., Mewada, R.K. & Mehta, T. (2016). Crosslinking of starch and its effect on viscosity behaviour. Rev. Chem. Engin. 32, 265-217.
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- 21. Guo, Q., Wang, Y. & Fan, Y. et al. (2015). Synthesis and characterization of multi-active site grafting starch copolymer initiated by KMnO4 and HIO4/H2SO4 systems. Carbohydr Polym. 117, 247-254. DOI: org/10.1016/j.carbpol.2014.09.033.
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- 23. Chang, Q., Hao, X. & Duan, L. (2008). Synthesis of crosslinked starch-graft-polyacrylamide-co-sodium xanthate and its performances in wastewater treatment. J. Hazard. Mater. 159, 548-553. DOI: 10.1016/j.hazmat.2008.02.053.
- 24. Cui, S.W. (2005). Food Carbohydrates: Chemistry, Physical Properties, and Applications”, CRC Press, Boca Raton, FL, USA, p. 432.
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- 28. Zhang, Y.R., Wang, X.L., Zhao, G.M. & Wang, Y.Z. (2012). Preparation and properties of oxidized starch with high degree of oxidation. Carbohydr Polym. 87, 2554-2562. DOI: 10.1016/j.carbpol.2011.11.036.
- 29. Leung, W.M., Axelson, D.E. & Syme, D. (1985). Determination of charge density of anionic polyacrylamide flocculants by NMR and DSC. Colloid & Polymer Sci. 263, 812-817.
- 30. Lawal, O.S., Lechner, M.D. & Kulicke, W.M. (2008). Single and multi-step carboxymethylation of water yam (Dioscorea alata) starch: Synthesis and characterization. Int. J. Biol. Macromol. 42, 429-435. DOI: org/10.1016/j.ijbiomac.2008.02.006.
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Uwagi
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-54406d4a-8828-4b83-8ec1-43f89a4f51f4