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A Critical Review on Flocculants and Flocculation
DOI:
https://doi.org/10.30564/nmms.v1i1.645Abstract
The article critically reviews the applications of biopolymers in the area of water treatment. A number of biopolymers were reported for their flocculation behavior for treating the wastewater and making it suitable for various industrial as well as agricultural purposes via chemical alteration onto its backbone. Wastewater treatment was followed by flocculation process using standard ‘Jar test protocol’. Minute quantities of dosage were found be ideal to diminish the organic, biological and suspended loads from wastewater sample. The process of flocculation using biopolymers was also found economically suitable compared to other various processes applied in water treatment.
Keywords:
Biopolymers; Graft copolymers; Polymeric flocculants; Standard ‘jar test protocol’; Mechanism of flocculationReferences
[1] D. J. Fort, E. L. Stover. “Joint toxic actions of organic flocculating polymers: impact on whole effluent toxicity testing”, Proc. Ind. Waste Conf, (1996) p. 601.
[2] D. J. Fort, E. L. Stover. “Impact toxicities and potential interactions of flocculants and coagulant aids on white effluent toxicity”, Wat. Environ. Res., 67 (6), (Sept/Oct. 1995) p. 921.
[3] P. N. Cheremisinoff “Handbook of water and wastewater treatment technology”, Marcel Dekker, Inc., New York, Ch. 4 (1995).
[4] F. W. Pontius (Tech. Ed.). “Water quality and treatment”, McGraw- Hill, Inc., New York, 4th edition (1990).
[5] C. A. Finch (Ed.). “Chemistry and technology of water-soluble polymers”, Plenum Press, New York (1983).
[6] R. L. Davidson, M. Sittig (Eds.), “Water-soluble resins”, 2nd edition, Reinhold, New York (1962).
[7] B. R. Nayak, R. P. Singh. “Development of graft copolymer flocculating agents based on grafted hydroxypropyl guar gum and acrylamide”, J. Appl. Polym. Sci., 81, (2001) p. 1776.
[8] A. Mishra, S. Rajani, M. Agarwal, R. Dubey. “P. psyllium-g- polyacrylamide: Synthesis and haracterization”, Polymer Bulletin, 48, (2002) p. 439.
[9] S. R. Deshmukh, P. N. Chaturvedi, R. P. Singh. “The turbulent drag reduction by graft copolymers of guar gum and polyacrylamide”, J. Appl. Polym. Sci., 30, (1985) p. 4013.
[10] S. K. Rath, R. P. Singh. “Flocculation characteristics of grafted and ungrafted starch, amylose and amylopectin”, J. Appl. Polym. Sci., 66, (1997) p. 1721.
[11] T. Tripathy, S. R. Pandey, N. C. Karmakar, R. P. Bhagat, R. P. Singh. “Novel flocculating agent based on sodium alginate and acrylamide”, Eup. Polym. J., 35, (1999) p. 2057.
[12] G. P. Karmakar, R. P. Singh. “Flocculation studies using amylose- grafted polyacrylamide”, Colloids and Surfaces A: Physicochem. Engg. Aspects, 133, (1998) p. 119.
[13] Gautam Sen, Sumit Mishra, K.P. Dey, Srijita Bharti. “Synthesis, Characterization and Application of Novel Polyacrylamide-grafted Barley”. Journal of Applied Polymer Science, 2014, 131(22): 41046.
[14] Srijita Bharti, Sumit Mishra. “Synthesis, characterization and application of polymethyl methacrylate grafted oatmeal: A potential flocculant for Wastewater Treatment”. International Journal of Environmental Research, 2016, 10(1):169-178.
[15] Srijita Bharti, Sumit Mishra, L.V. Narendra. “Comparative studies on the high performance flocculating agent of novel polyacrylamide grafted oatmeal”. Advances in Polymer Technology, 2015, 21540.
[16] Srijita Bharti, Sumit Mishra. “Ceric ion induced synthesis of polymethyl methacrylate grafted oatmeal: Its characterization & application. Desalination and Water Treatment, 2015, 1-1
[17] Srijita Bharti, Sumit Mishra, Gautam Sen. “Ceric ion initiated synthesis of polyacrylamide grafted oatmeal: Its application as flocculant for wastewater treatment”. Carbohydrate Polymers, 2013, 93(2): 528-536.
[18] Srijita Bharti, Sumit Mishra. “Flocculation behavior of novel polyacrylamide grafted oatmeal: Synthesis and Characterization. Biospectra: Vol. 12(1A), March, 2017, Spl. Issue, pp. 183-188.
[19] G. F. Fanta, R. C. Burr, C. R. Russel, R. E. Rist. “Graft copolymers of starch and poly (2-hydroxy-3-methacryloyloxypropyl trimethyl ammonium chloride) preparation and testing as flocculating agents”, J. Appl. Polym. Sci., 14, (1970) p. 2601.
[20] J. Gregory. “Flocculation by Polymers and Polyelectrolytes”, In Solid- Liquid Dispersions, Th. F. Tadros, (Ed.), Academic Press, London, Ch.8 (1987).
[21] R. A. Ruehrwein, D.W. Ward, “Mechanism of clay aggregation by polyelectrolytes” Soil Science, 73, (1952) p. 485.
[22] J. Gregory, “Stability and flocculation of suspensions”, Process. Solid Liq. Suspensions, (1993) p.59.
[23] J. Gregory. “The Use of Polymeric Flocculants, Proc. of the Engineering Foundation Conference of Flocculation Sedimentation and Consolidation”, The Cloiser Seaislands, Georgia, USA, Jan. 27-Feb.1, (1985) p.125.
[24] T. Smith-Palmer, N. Campbell, J. L. Bowman, P. Dewar. “Flocculation Behaviour of Some Cationic Polyelectrolytes”, J. Appl. Polym. Sci., 52, (1994) p. 1317.
[25] R. P. Singh. “Drag reduction and shear stability mechanism”, In Encyclopedia of Fluid Mechanics: Polymer Flow Engineering; I. P. Cheremisinoff (Ed.), Gulf Publishing, Houston, USA, Vol. 9, (1990) p. 425.
[26] R. P. Singh. “Advanced turbulent drag reducing and flocculating materials based on polysaccharides”, In Polymers and Other Advanced Materials: Emerging Technologies and Business Opportunities; J. E. Mark, T. J. Fai (Eds.), Plenum Press, New York, (1995) p. 227.
[27] R. P. Singh, G. P. Karmakar, S. K. Rath, N. C. Karmakar, T. Tripathy, J. Panda, K. Kannan, S. K. Jain, N. T. Lan. “Biodegradable drag reducing agents and flocculants based on polysaccharides: Materials and applications”, Polym. Engg. Sci., 40, (2000) p. 46.
[28] W. Brostow , S.Pal, R.P.Sing,Mater.Letter.61(2007) 4381-4384.
[29] J. Gregory. “Flocculation test methods”, Effluent Treat. J., 23, (1983) p. 199.
[30] C. W. Angle, T. Smith-Palmer, B. R. Wentzell. “The effects of cationic polymer on flocculation of a coal thickener feed in washery water as a function of pH”, J. Appl. Polym. Sci., 64, (1997) p. 783.
[31] D. A. Dahlstrom. “Solid-liquid separation”, Engg. & Mining J., 181 (6), (1980) p. 123.
[32] R. Hogg, R. C. Klimpel, D. T. Dey. “Agglomerate structure in flocculated suspensions and its effect on sedimentation and dewatering”, Mine. Metal. Process. 108, (1987).
[33] R. Keren, D. L. Sparks. “The role of edge surfaces in flocculation of 2:1 clay minerals”, Soil Science Society of America J., 59 (2), (1995) p. 430.
[34] J. Gregory. “Stability and Flocculation of Suspensions”, Prog. Solid Liquid Dispersions, Ch. 3(1993).
[35] J. Gregory. “Flocculation of Fine Particles in Innovation in Flotation Technology”, P. Mavros and K. A.Matis (Eds.), Kluwer Academic Publishers, Netherlands, (1992) p. 101.
[36] J. M. Montgomery. “Water Treatment: Principles and Design”, John Wiley & Sons, New York, (1985) p. 116.
[37] H. R. Kruyt, “Irreversible systems”, Colloid Science, Vol. 1, , Elsevier, New York (1952) p.
[38] A. K. Banerjee, W. W. Tscharnuter, B. B. Weiner, Y. B. Gokhale. “Measuring Zeta Potential Using Light Scattering”, Chemical Industry Digest, 116, 4th Quarter, December (1996).
[39] Operating Instruction and Manual on Particle Micro-Electrophoresis (Apparatus Mark-Ii), Rank Brothers, High Street, Bottisham, Cambridge Cb59da, England.
[40] T. M. Riddick. “Zeta potential and its application”, JWWA, (1961) 1007.
[41] J. Gregory, L. Xing. “Influence of rapid mix conditions on flocculation by polymers”, Dispersion Aggregation, Proc. Eng. Found. Conf., (1992) (Pub. 1994) p. 427.
[42] R. Hogg. “Hydrodynamic effects in flocculation and dispersion of fine- particle suspensions”, Plenary lecture presented at Engg. Foundation Conf. On Dispersion Aggregation, Fundamentals and Applications, Palm Coasi, Florida (15-20 March ‘1992).
[43] K. P. Mishra, K. D. Gupta, P. S. M. Tripathy, N. M. Singh. “Effect of variation of particle size and agitation on the flocculation of coals by polymeric flocculants”, J. Indian Chem. Soc., 73 (4-5), (1996) p. 223.
[44] B. Yarar, J. A. Kitchner. “Selective flocculation of minerals. 1. Basic principles. 2. Experimental investigation of quartz, calcite, and galena”, Trans. Inst. Min. Metall., 79, (1970) p.
[45] G. C. Sresty, A. Raja, P. Somasundaran. “Recent developments in separation science”, N. N. Li.,(Ed.), CRC Press Vol. 4, (1978) p. 93.
[46] Y. A. Attia. “Flocculation” In Biotechnology and Separation Systems”, Y. A. Attia (Ed), Elsevier, Amsterdam, (1987) p. 227.
[47] T. Lindstrom, G. Glad-Nordmark. “Selective adsorption, flocculation and fractionation of wood pulps with polyethylene oxide”, J. Colloid Interface Science, 94, (1983) p. 404.
[48] S. Behl, B. M. Moudgil, T. S. Prakash. “Control of active sites in selective flocculation (I) mathematical model”, J. Colloid Interface Science, 161, (1983) p. 414.
[49] S. Behl, B.M. Moudgil. “Control of active sites in selective flocculation (II) role of site blocking agents”, J. Colloid Interface Science, 161, (1993) p. 422.