Incidence of Calcic, Sulfates and Phosphates Salts on the Coagulation-Flocculation of Organic Compounds by Aluminium Sulfate

Abstract:

The objective of this work is to evalute the coagulation-flocculation efficiency of the aluminum sulfate for the elimination of aromatic organic molecules (phenylalanine and catechol) in the presence of mineral salts of Ca²⁺ , SO₄^2- and PO₄^3-.Trials were conducted on the one hand on synthetic solutions of aromatic compounds in distilled water enriched by ions of calcium, sulphates and phosphate ions introduced in various forms (CaCl₂ ; CaSO₄ ; MgSO₄ ; Na₂SO₄ ; NaH₂PO₄ ; KH₂PO₄), and on the other hand on Algerian drilling waters of different physicochemical characteristics. Results show that the addition of minerals salts seems to improve the yields of elimination of aromatic compounds tested and affects the optimal pH range of coagulation. The application of this process on mineralized waters (water drilling) leads to improve yields compared with those obtained in distilled water. It was also found that the process efficiency depends on the nature and the number of functional groups on the molecules and on their position relative to each other. The main mechanisms would be either a physical adsorption ,an exchange of ligand or a complexation on the floc surface of aluminum hydroxides.

• Periodical: International Journal of Engineering Research in Africa (Volume 34)
• Pages: 59-69
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.34.59
• Online since: January 2018
• Authors: Linda Hecini*, Samia Achour
• Keywords: Aluminum Sulfate, Catechol, Coagulation-Flocculation, Mineral Salts, Mineralized Waters, Phenylalanine

References

[1] M.D. Dihang, Mechanisms of coagulation and flocculation of suspensions of diluted clays encountered in water treatment. Doctoral Thesis. University Paul Sabatier. Toulouse III. France. (2007).

[2] P. Petitjean, O. Hénin, G. Gruau, Determination of organic carbon dissolved in natural fresh waters. Interest, principle, implementation and operating conditions Cahiers Techniques de Géosciences Rennes. N °3, 48p. (2004).

[3] R. Andreozzi, V. Caprio, A. Insola, R. Marotta, Advanced oxidation processes (AOP) for water purification and recovery, Catalysis Today, 53, pp.51-59. (1999).

DOI: 10.1016/s0920-5861(99)00102-9

[4] Croue J.P., Violleau D., Bodaire C. & Legube B ; Elimination of hydrophobic and hydrophilic constituents by anion exchange resin. Water Science and Technology, 40, 207-214. (1999).

DOI: 10.2166/wst.1999.0478

[5] Z. Domany, I. Galambos, G. Vatai & E. Molnar, Humic substances elimination from drinking water by membrane filtration. Desalination, 145, 333-337. (2002).

DOI: 10.1016/s0011-9164(02)00432-0

[6] H. Humbert, H. Gallard, H. Suty & J.P. Croue, Natural Organic Matter (NOM) and pesticides elimination using a combination of ion exchange resin and powdered activated carbon (PAC). Water Research, 42, 1635-1643. (2008).

DOI: 10.1016/j.watres.2007.10.012

[7] T. Putois, Study of treatment of disinfection of cooling water by coupling H2O2/ UV. Application to an air-cooling tower. Doctoral thesis. University of Grenoble. la France. (2012).

[8] Degremont, Memento technique of water, 10th Edition. Paris. France. (2005).

[9] G.S. Wang, S.F. Kang, H.J. Yang, S.Y. Pai, H.W. Chen, Elimination of dissolved natural organic matter from source water with alum coagulation. Environmental Technology, 23, 14151423. (2002).

DOI: 10.1080/09593332508618446

[10] M. Mazet, M.T. Wais Mossa, , Influence of mineral salts on the adsorption of humic acids on preformed iron hydroxide flocs, Envir. Techno, 12, 725-730. (1991).

[11] E. Lefebvre, Coagulation of aquatic humic substances by ferric iron in aqueous medium. Effect of preoxidation, Doctoral Thesis, University of Poitiers. France. (1990).

[12] S. Achour, N. Guesbaya; Tests for flocculation of humic substances in aqueous mineralized media, Larhyss Journal, 5, Juin , 171-178. University of Biskra, Algeria. (2006).

[13] F. Affoufou, N. Guesbaya and S. Achour, Effect of the mineralization of natural waters on the elimination of aromatic organic compounds by coagulation-flocculation, Courrier du Savoir Journal - 08, pp.75-81. University of Biskra, Algeria. (2007).

[14] A. Rezeg S., Achour, Mechanisms for the elimination of aromatic organic acids by aluminum sulphate and effect of mineralization; Courrier du Savoir journal - N ° 09, pp.25-31. University of Biskra. Algeria. (2009).

[15] L. Hecini, S. Achour., Study of the interactions of aluminum sulphate with phenolic compounds and effect calcic and magnesichardness water hardness. Courrier du savoir journal n ° 18, pp.83-88. University of Biskra. Algeria. (2014).

[16] J. Rodier, B. Legube, N. Merlet, R. Brunet, Water analysis - 9th edition, - Natural waters, wastewater, seawater: Water analysis, 9th edition, Paris, Dunod. (2009).

[17] M. Seve, Amino acids: Physico-chemical properties. Chapter 2; Power point, Joseph Fourier University of Grenoble. France. 29 p. (2011).

[18] S. Suresh, V.C. Srivastava and I.M. Mishra.: Adsorption of catechol, resorcinol, hydroquinone, and their derivatives: a review. International Journal of Energy and Environmental Engineering. Springer 3: 32. 19 p. (2012).

DOI: 10.1186/2251-6832-3-32

[19] S. Achour, N Guesbaya, Coagulation-flocculation by aluminum sulphate of phenolic organic compounds and humic substances. Larhyss Journal, 04, 153-168, University of Biskra, Algeria. (2005).

[20] M. Clément, R. Seux, B. Moussa, Studies of the factors determining the leakage of aluminum in feed waters prepared from waters clarified by salts of this metal, Trib. Cebedeau, 480, 336, , 469481. Liège, Belgium. (1983).

[21] N. Guesbaya, Elimination of organic compounds by the coagulation-flocculation process, Magister's thesis in hydraulic sciences, University of Biskra. Algeria. (1998).

[22] F. Julien, B. Gueroux, M. Mazet, Comparison of the elimination of organic molecules by coagulation-flocculation and by adsorption on preformed metal hydroxide flocs, Water. Res. 28, 12, 2567-2574. (1994).

DOI: 10.1016/0043-1354(94)90075-2

[23] M.T. Wais Mossa and M. Mazet, Adsorption d'acides humiques sur flocs d'hydroxydes d'aluminium : Influence de la taille des flocs et du sel d'aluminium, Envir. Technology, 12, 5158. (1990).

DOI: 10.1080/09593339109384981

[24] M. Rahni, Coagulation-flocculation of some organic compounds by ferrous iron in aqueous medium: Study of mechanism and comparison with adsorption, Thesis of Doctorate, University of Poitiers, France. (1994).

[25] L. Hecini and S. Achour, Elimination of phenol and pyrogallol by coagulation-flocculation", journal , Sciences, Technologies and Developpement. N° 8- VOL. II- ANDRU, 2011, El Harrach- Algerria (2011).

[26] S. Achour, Effect of chlorination, flocculation and adsorption processes on the evolution of organic and mineral compounds in natural waters, Doctoral Thesis, University of Tizi-ouzou, (2001).