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Abstract:

The presence of emulsified oil in waste water of the edible fats industry can interfere with many tertiary or advanced waste water treatments such as adsorption, filtration, and various membrane techniques, and can cause severe problems in the step of biological treatment. The objective of the present work was to compare the performance of three destabilizers: chitosan, polyacrylamide, and aluminum sulfate to flocculate an O/W emulsion formulated with different emulsifiers (sodium dodecyl sulfate and sodium tetradecyl sulfate). Experiments were performed on a model system constituted by sunflower oil/water emulsions. Methods used were turbidimetry, colloidal titration, and microscopic observation. Results showed that the increase of surfactant chain length increases the destabilizer dose necessary to produce destabilization and reaching zero charge. In chitosan and polyacrylamide treatments, redispersion was observed for both sodium dodecyl sulfate and sodium tetradecyl sulfate emulsions. In the case of treatment with aluminum sulfate, turbidity values remained nearly constant, showing that redispersion does not take place in this case.

Registro:

Documento: Artículo
Título:Treatment of anionic emulsion systems using chitosan, polyacrylamide, and aluminum sulfate
Autor:Pinotti, A.; Bevilacqua, A.; Zaritzky, N.
Filiación:Ctro. Invest. y Desarrollo C., CONICET, Fac. de Ciencias Exactas, Buenos Aires, Argentina
Depto. de Ing. Química, Fac. de Ingeniería, Universidad Nacional de La Plata, Buenos Aires, Argentina
Ctro. Invest. y Desarrollo C., CONICET, Universidad Nacional de La Plata, 47 y 116, La Plata Buenos Aires, Argentina
Palabras clave:Aluminum sulfate; Chitosan; Emulsions; Flocculation; Polyacrylamide; aluminum sulfate; chitosan; dodecyl sulfate sodium; fat; oil; polyacrylamide; sunflower oil; surfactant; tetradecyl sulfate sodium; water; article; emulsion; microscopy; priority journal; titrimetry; turbidimetry
Año:1999
Volumen:21
Número:5
Página de inicio:354
Página de fin:358
Título revista:Scanning
Título revista abreviado:Scanning
ISSN:01610457
CODEN:SCNND
CAS:aluminum sulfate, 10043-01-3; chitosan, 9012-76-4; dodecyl sulfate sodium, 151-21-3; polyacrylamide, 9003-05-8; sunflower oil, 8001-21-6; tetradecyl sulfate sodium, 1191-50-0, 139-88-8, 4754-44-3; water, 7732-18-5
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01610457_v21_n5_p354_Pinotti

Referencias:

  • Axberg, C., Wennerburg, A.-M., Stenius, P., Flocculation of waste emulsions using polyelectrolytes (1980) Prog Wat Tech, 12, pp. 371-384
  • Bough, W.A., Landes, D.R., Miller, J., Young, C.T., McWhorten, T.R., Utilization of chitosan for recovery of coagulated by-products from food processing wastes and treatment systems (1976) Sixth Proc National Symp Food Process Wastes, pp. 22-48. , EPA-600/2-76-224
  • Bough, W.A., Shellfish components could represent future food ingredients (1977) Food Prod Dev, 11 (8), pp. 90-92
  • Dentel, S., Gossett, J., Mechanisms of coagulation with aluminum salts (1988) J Am Water Works Ass, 80, pp. 187-198
  • Everett, D.H., (1988) Basic Principles of Colloid Science, , Ch. 3. Royal Society of Chemistry, Burlington House, Piccadilly, London
  • Gregory, J., Precipitation and coagulation in waste treatment (1985) Comprehensive Biotechnology, 4. , Ch. 43. (Ed. Murray Moo Young). Pergamon, Oxford
  • Kawamura, S., Tanaka, Y., Applying colloid titration techniques to coagulation dosage control (1966) Water Sewage Works, 113, pp. 348-357
  • Kawamura, S., Hanna, G.P., Shumate, K.S., Application of colloid titration technique to flocculation control (1967) J Am Water Works Assn, 59, pp. 1003-1013
  • Knorr, D., Recovery of functional proteins from food processing wastes (1983) Food Tech, 37, pp. 71-76
  • Leu, R.-J., Ghosh, M., Polyelectrolyte characteristics and flocculation (1988) J Am Water Works, 80, pp. 159-167
  • Milazzo, A., Use of chitosan as a flocculant in industrial effluent from lobster-processing plants (1982) Riv Mercel, 21 (4), pp. 349-354
  • Moore, K.J., Johnson, M.G., Sistrunk, W.A., Effect of polyelectrolyte treatments on waste strength snap and dry bean wastewaters (1987) J Food Sci, 52 (2), pp. 491-492
  • No, H.K., Meyers, S.P., Crawfish chitosan as a coagulant in recovery of organic compounds from seafood processing streams (1989) J Agric Food Chem, 37, pp. 580-583
  • Pinotti, A., Bevilacqua, A., Zaritzky, N., Optimization of the flocculation stage in a model system of a food emulsion waste using chitosan as polyelectrolyte (1997) J Food Eng, 32, pp. 69-81
  • Prabhu, P.V., Radhakrishnan, A.C., Iyer, T.S.G., Chitosan as a water clarifying agent (1976) Fish Technol, 13 (1), pp. 69-72
  • Ries, H.E., Meyers, B.L., Flocculation mechanisms: Charge neutralization and bridging (1968) Science, 160, pp. 1449-1450
  • Somasundaran, P., Healy, T.W., Fuerstenau, D.W., Surfactant adsorption at the solid-liquid interface: Dependence of mechanism on chain length (1964) J Physical Chem, 68, pp. 3562-3566
  • Stumm, W., O'Melia, C., Stoichiometry of coagulation (1968) J Am Water Works, 60, pp. 515-539
  • Verma, S., Chaudhuri, M., Colloid-chemical parameters for coagulant dose control (1978) J Am Water Works Assn, 70, pp. 102-105

Citas:

---------- APA ----------
Pinotti, A., Bevilacqua, A. & Zaritzky, N. (1999) . Treatment of anionic emulsion systems using chitosan, polyacrylamide, and aluminum sulfate. Scanning, 21(5), 354-358.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01610457_v21_n5_p354_Pinotti [ ]
---------- CHICAGO ----------
Pinotti, A., Bevilacqua, A., Zaritzky, N. "Treatment of anionic emulsion systems using chitosan, polyacrylamide, and aluminum sulfate" . Scanning 21, no. 5 (1999) : 354-358.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01610457_v21_n5_p354_Pinotti [ ]
---------- MLA ----------
Pinotti, A., Bevilacqua, A., Zaritzky, N. "Treatment of anionic emulsion systems using chitosan, polyacrylamide, and aluminum sulfate" . Scanning, vol. 21, no. 5, 1999, pp. 354-358.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01610457_v21_n5_p354_Pinotti [ ]
---------- VANCOUVER ----------
Pinotti, A., Bevilacqua, A., Zaritzky, N. Treatment of anionic emulsion systems using chitosan, polyacrylamide, and aluminum sulfate. Scanning. 1999;21(5):354-358.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01610457_v21_n5_p354_Pinotti [ ]