Substituting polyacrylamide with an activated starch polymer during ballasted flocculation

Aguilar, 2005, Improvement of coagulation–flocculation process using anionic polyacrylamide as coagulant aid, Chemosphere, 58, 47, 10.1016/j.chemosphere.2004.09.008 Gregory, 2011, Adsorption and flocculation by polymers and polymer mixtures, Adv. Colloid Interface Sci., 169, 1, 10.1016/j.cis.2011.06.004 Lapointe, 2015, Evaluation of activated starch as an alternative to polyacrylamide polymers for drinking water flocculation, J. Water Supply: Res. Technol.—AQUA, 64, 333, 10.2166/aqua.2014.114 Lapointe, 2016, Characterization of ballasted flocs in water treatment using microscopy, Water Res., 90, 119, 10.1016/j.watres.2015.12.018 Mouchet, 1998, Solving algae problems: french expertise and world-wide applications, J. Water Supply: Res. Technol.—AQUA, 47, 125 Chen, 2001, Effect of acid and surfactant treatment on activated sludge dewatering and settling, Water Res., 35, 2615, 10.1016/S0043-1354(00)00565-0 Ouellet, 2017, Impact de l’utilisation d’un polymère biosourcé sur la réduction du colmatage en filtration granulaire, École Polytechnique de Montréal Zhu, 1996, Improving removal of turbidity causing materials by using polymers as a filter aid, Water Res., 30, 103, 10.1016/0043-1354(95)00097-5 Kawamura, 1991, Effectiveness of natural polyelectrolytes in water treatment, J. (Am. Water Works Assoc.), 83, 88, 10.1002/j.1551-8833.1991.tb07236.x Lee, 2014, A review on application of flocculants in wastewater treatment, Process. Saf. Environ. Prot., 92, 489, 10.1016/j.psep.2014.04.010 Sharma, 2006, Flocculants—an ecofriendly approach, J. Polym. Environ., 14, 195, 10.1007/s10924-006-0011-x Bolto, 2007, Organic polyelectrolytes in water treatment, Water Res., 41, 2301, 10.1016/j.watres.2007.03.012 Mallevialle, 1984, How safe are organic polymers in water treatment?, J. (Am. Water Works Assoc.), 87, 10.1002/j.1551-8833.1984.tb05354.x Rice, 2005, The carcinogenicity of acrylamide, Mutat. Res. Toxicol. Environ. Mutagen., 580, 3, 10.1016/j.mrgentox.2004.09.008 Fielding, 1999 Xing, 2010, Integration of inorganic micronutrients and natural starch based cationic flocculant in primary treated sewage effluent (PTSE) treatment, Sep. Sci. Technol., 45, 619, 10.1080/01496390903566739 Biesinger, 1986, Effects of synthetic polyelectrolytes on selected aquatic organisms, J. Water Pollut. Control Federation, 207 Letterman, 1990, Contaminants in Polyelectrolytes used in water treatment, J. (Am. Water Works Assoc.), 82, 87, 10.1002/j.1551-8833.1990.tb07056.x Who Seminar Pack for Drinking-Water-Quality, 2000 Lu, 2011, Preparation of strong cationic chitosan-graft-polyacrylamide flocculants and their flocculating properties, Ind. Eng. Chem. Res., 50, 7141, 10.1021/ie2000665 Gaid, 2011, The flocculants of natural origin: the real alternative, L'Eau, l'industrie, les nuisances, 345, 83 Wang, 2018, Activated starch as an alternative to polyacrylamide-based polymers for in-line filtration of low turbidity source water, J. Water Supply: Res. and Technol.-AQUA, 10.2166/aqua.2018.023 Lapointe, 2017, Dual starch–polyacrylamide polymer system for improved flocculation, Water Res., 124, 202, 10.1016/j.watres.2017.07.044 Lapointe, 2017, Assessing alternative media for ballasted flocculation, J. Environ. Eng., 143, 10.1061/(ASCE)EE.1943-7870.0001271 APHA, AWWA, & WEF, 2012 Edzwald, 2016, Coagulation revisited: colloids, chemistry, and carbon, Paper Presented at the Water Quality Technology Conference Lapointe, 2018, Selection of media for the design of ballasted flocculation processes, Water Res., 147, 25, 10.1016/j.watres.2018.09.041 Bratskaya, 2005, Effect of polyelectrolyte structural features on flocculation behavior: cationic polysaccharides vs. synthetic polycations, Macromol. Mater. Eng., 290, 778, 10.1002/mame.200400403 Ingamells, 1970, Lithium metaborate flux in silicate analysis, Anal. Chim. Acta, 52, 323, 10.1016/S0003-2670(01)80963-6 Potts, 2012 Laskowski, 2007, Current understanding of the mechanism of polysaccharide adsorption at the mineral/aqueous solution interface, Int. J. Miner. Process., 84, 59, 10.1016/j.minpro.2007.03.006 Duan, 2003, Coagulation by hydrolysing metal salts, Adv. Colloid Interface Sci., 100–102, 475, 10.1016/S0001-8686(02)00067-2 Wesolowski, 1994, Aluminum speciation and equilibria in aqueous solution: V. Gibbsite solubility at 50°C and pH 3–9 in 0.1 molal NaCl solutions (a general model for aluminum speciation; analytical methods), Geochimica et Cosmochimica Acta, 58, 2947, 10.1016/0016-7037(94)90171-6 Liu, 2000, The adsorption of polysaccharides onto mineral surfaces: an acid/base interaction, Int. J. Miner. Process., 60, 229, 10.1016/S0301-7516(00)00018-1 Fan, 2000, A study of dual polymer flocculation, Colloids Surf. A Physicochem. Eng. Asp., 162, 141, 10.1016/S0927-7757(99)00252-6 Mabire, 1984, Flocculation properties of some water-soluble cationic copolymers toward silica suspensions: a semiquantitative interpretation of the role of molecular weight and cationicity through a “patchwork” model, J. Colloid Interface Sci., 97, 120, 10.1016/0021-9797(84)90280-7 Nasser, 2006, The effect of polyacrylamide charge density and molecular weight on the flocculation and sedimentation behaviour of kaolinite suspensions, Sep. Purif. Technol., 52, 241, 10.1016/j.seppur.2006.04.005 Gregory, 1988, Polymer adsorption and flocculation in sheared suspensions, Colloids Surf., 31, 231, 10.1016/0166-6622(88)80196-3 Lee, 1989, Adsorption of polyacrylamide on oxide minerals, Langmuir, 5, 854, 10.1021/la00087a047