Ali MANSRI, Karim BENHABIB, Brahim BOURAS, Tayeb HOCINE, Kamel Ismet BENABADJI

Optimizing the coagulation/flocculation process for bentonite suspension with poly(acrylamide-co-(N-methyl-4-vinylpyridinium tosylate)) [AM7/VP10/0.1%/CTs]

In this work, we are interested in the quaternization of poly(acrylamide-co-4-vinylpyridine) [AM7/VP10/0.1%/]by the methyl-tosylate CH3 TS. The obtained copolymer poly(acrylamide-co-(N-methyl-4-vinylpyridinium tosylate))[AM7/VP10/0.1%/CTs] has been characterized by 1 H NMR and UV-Vis spectroscopy. The macromolecular weight wasdetermined by size exclusion chromatography as well as by viscosity. With the aim of removing turbidity by coagulationflocculation from bentonite suspensions, the prepared copolymer was used as a flocculant. Several important parametersin the flocculation process, such as pH of water, initial turbidity, and flocculant concentration, were utilized for theoptimization of wastewater treatment. Flocculation experiments were carried out in a conventional jar test where theturbidity removal was found about 90% at pH 3 with a low flocculant concentration range from 0.5 to 3 mg/L. In additionto obtaining good efficiency from using a semiindustrial pilot of flocculation, clear and clean water was produced during2 h of treatment.

PDF

___

1. Rizzo, L.; Lofrano, G.; Grassi, M.; Belgiorno, V. Sep. Purif. Technol. 2008, 63, 648-653.
2. Runkana, V.; Somasundaran, P.; Kapur, P.C. Chem. Eng. Sci. 2006, 61, 182-191.
3. Divakaran, R.; Pillai, V. N. S. Water Res. 2001, 35, 3904-3908.
4. Renaut, F.; Sancey, B.; Badot, P. M.; Crini, G. Eur. Polym. J. 2009, 45, 1337-1348.
5. Lee, S. H.; Shin, M. C.; Choi, S. J.; Park, I. S. Environ. Technol. 1998, 19, 431-437.
6. Pal, S.; Ghorai, S.; Dash, M. K.; Ghosh, S.; Udayabhanu, G. J. Hazard. Mater. 2011, 192, 1580-1588.
7. Liang, C. Z.; Sun, S. P.; Li, F. Y.; Ong, Y. K.; Chung, T. S. J. Membr. Sci. 2014, 469, 306-315.
8. Cai, T.; Yang, Z.; Li, H. J.; Yang, H.; Li, A. M.; Cheng, R. S. Cellulose 2013, 20, 2605-2614.
9. Liimatainen, H.; Sirvi¨o, J.; Sundman, O.; Visanko, M.; Hormi, O.; Niinim¨akia, J. Bioresour. Technol. 2011, 102, 9626-9632.
10. Teh, C. Y.; Wu, T. Y.; Juan, J. C. Ecol. Eng. 2014, 71, 509-519.
11. Bouras, B.; Mansri, A.; Tennouga, L.; Grassl, B. Res. Chem. Intermed. 2015, 41, 5839-5858.
12. Grassl, B.; Clisson, G.; Khoukh, A.; Billon, L. J. Eur. Polym. 2008, 44, 50-58.
13. Mansri, A.; Fr`ere, Y.; Chevino, C.; Gramain, P. Des. Monomers Polym. 2000, 3, 55-66.
14. Mansri, A.; Belkaid, S. Desalination 2015, 54, 405-411.
15. Mansri, A.; Memou, C. H.; Benabadji, K. I. Res. Chem. Intermed. 2015, 41, 1727-1740.
16. Bernard, Y.; Coleman, D.; Fuoss, R. M. J. Amer. Chem. Soc. 1955, 77, 5472-5478.
17. Baik, M. H.; Lee, S. Y. J. Ind. Eng. Chem. 2010, 16, 837-841.
18. Tomb´acz, E.; Szekeres, M. Appl. Clay. Sci. 2004, 27, 75-94.
19. Zarzycki, P.; Thomas, F. J. Colloid Interface Sci. 2006, 302, 547-559.
20. Lagaly, G.; Bergaya, F.; Theng, B. K. G.; Lagaly G., Eds. Handbook of Clay Science; Elsevier: Amsterdam, the Netherlands, 2006, pp. 141-245.
21. Li, J.; Song, X.; Pan, J.; Zhong, L.; Jiao, S.; Ma, Q. Int. J. Biol. Macromol. 2013, 62, 4-12.
22. Hocine, T.; Benhabib, K.; Bouras, B.; Mansri, A. J. Polym Environ. 2018, 26, 1550-1558.
23. Anleu, E.; Cardoso, J.; Manero, O. J. Appl. Polym. Sci. 2002, 86, 2693-2700.
24. Mansri, A.; Bendraoua, A.; Benmoussa, A.; Benhabib, K. J. Polym. Environ. 2015, 23, 580-587.
25. Changchaivong, S.; Khaodhiar, S. Appl. Bentonite Sci. 2009, 43, 317-321.
26. Shen, Y. H. J. Chem. Technol. Biot. 2005, 80, 581-586.
27. Mansri, A.; Ramdani, N. Res. Chem. Intermed. 2015, 41, 1765-1776.
28. Chang, Q.; Hao, X.; Duan, L. J. Hazard. Mater. 2008, 159, 548-553.
29. Zhen, Y.; Hu, Y.; Ziwen, J.; Tao, C.; Haijianj, L.; Aimin, L.; Rongshi, C. J. Hazard. Mater. 2013, 254, 36-45.