Modified acrylamide copolymers as flocculants for model aqueous suspensions

• Autorzy: Drzycimska A. , Szmidt B. , Spychaj T.
• Języki publikacji: EN

Abstrakty

EN

Two groups of acrylamide copolymers have been obtained by inverse microemulsion polymerization using: (i) acrylamide (AAm) with [2-(acryloyloxy)ethyl]trimethylammonium chloride (AETAC) in the presence of sodium montmorillonite (MMT), and (ii) acrylamide with acrylic acid (AA) in the presence of aluminum sulphate. The received materials were characterised by capillary viscometry and the DSC methods, as well as the flocculation performances of the modified copolymers in the treatment of aqueous model suspensions of talc and calcium montmorillonite have been investigated. The effectiveness of the acrylamide flocculants was evaluated on the basis of the suspension extinction reduction and the sludge volume. The obtained results have been compared while using the modified materials and appropriate anionic and cationic AAm copolymers.

Słowa kluczowe

EN

anionic flocculants; cationic flocculants; acrylamide copolymers; inorganic modifier

PL

flokulanty anionowe; flokulanty kationowe; kopolimery akryloamidowe; modyfikatory nieorganiczne

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2007
• Tom: Vol. 9, nr 2
• Strony: 10--14
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Drzycimska A.

autor

Szmidt B.

autor

Spychaj T.

• Szczecin University of Technology, Polymer Institute, ul. Pulaskiego 10, 70-322 Szczecin,

Bibliografia

• 1. Thomas W. M., Wei Wang D.: Acrylamide polymers, in Encyclopedia of Polymer Science and Engineering (Ed. Mark H. F.), vol. 1, Wiley-Interscience, New York 1985, 169.
• 2. Qian J. W., Xiang X. J., Yang W. Y., Wang M., Zheng B. Q.: Flocculation performance of different polyacrylamide and the relation between optimal dose and critical concentration, European Polymer Journal, 2004, 40, 1699.
• 3. Radoiu M. T., Martin D. I., Calinescu I., Iovu H.: Preparation of polyelectrolytes for wastewater treatment, Journal of Hazardous Materials, 2004, 106B, 27.
• 4. Wong S. S., Teng T. T., Ahmad A. L., Zuhairi A., Najafpour G.: Treatment of pulp and paper mill wastewater by polyacrylamide (PAM) in polymer induced flocculation, Journal of Hazardous Materials, 2006, 135, 378.
• 5. Mpofu P., Addai-Mensah J., Ralston J.: Investigation of the effect of polymer structure type on flocculation, rheology and dewatering behaviour of kaolinite dispersions, International Journal of Mineral Processing, 2003, 71, 247.
• 6. Abraham T.: Role of polyelectrolyte charge density in tuning colloidal forces, AIChE Journal, 2004, 50, 2613.
• 7. Hocking M. B., Klimcuk K. A., Lowen S.: Watersoluble acrylamide copolymers. X. Flocculation efficiencies of poly[acrylamide-co-N,N-dimethylacrylamide], poly[acrylamide-co-methacrylamide], poly[acrylamide-co-N-t-butylacrylamide], and their cationic derivatives, Journal of Applied Polymer Science, 2001, 84, 2090.
• 8. Fan A., Turro N. J., Somasundaran P.: A study of dual polymer flocculation, Colloids and Surfaces, 2000, 161, 141.
• 9. Drzycimska A., Schmidt B., Spychaj T.: (Ko)poliakryloamidowe flokulanty nano-hybrydowe, Mat. Konf.: VIII Konferencja "Otrzymywanie, zastosowanie i analiza wodnych dyspersji i roztworów polimerów", 13 - 14 października 2005, Szczyrk, 53 - 59.
• 10. Spychaj T., Schmidt B.: Polymeric systems based on poly(acrylic acid) and trivalent metal cations, Macromolecular Symposia, 2000, 152, 173.
• 11. Yang W. Y., Qian J. W., Shen Z. Q.: A novel flocculant of Al(OH)3-polyacrylamide ionic hybrid, Colloid and Interface Science, 2004, 273, 400.
• 12. Wilson A. D., Crisp S.: Organolithic macromolecular materials, Applied Science Publishers LTD, London, 1997, 136.
• 13. Drzycimska A., Spychaj T.: Estimation of the aluminum salt effect on homopolymerization of acrylamide and its copolymerization with acrylic acid by DSC, Polimery, 2006, 51, 460.
• 14. Kowalczyk K., Spychaj T.: Wodorozcieńczalne epoksydowe kompozycje powłokowe modyfikowane nanocząstkami, Przemysł Chemiczny, 2006, 85, 927