Composite reagents for water treatment based on natural alginates
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DOI:
https://doi.org/10.15625/2525-2518/18701Keywords:
water treatment, composite reagents, coagulants, flocculants, sodium alginate, magnetic particlesAbstract
Compositions of composite reagents for water treatment based on inorganic coagulants and sodium alginate used as a flocculant have been developed. The dissolution time of coagulants based on aluminum compounds was established to be equal 0.2 - 0.4 min, the dissolution time of sodium alginate milled and fractionated on 0.25 mm sieves was determined to be 2.0 min. By controlling the dispersion degree of the composite reagent components, a consecutive release of the coagulant and flocculant (sodium alginate) into the treated water has been achieved. The process of mixing the reagents was shown to not affect the dispersion degree of the components and didn’t prevent their consecutive release. An increase in the residual aluminum content was found when using Al2(SO4)3 in the presence of sodium alginate. The effect has been eliminated by additional introduction of CaCl2 into the composite reagent. The introduction of sodium alginate into composite reagents has been established to make it possible to increase the sedimentation rate of aggregates obtained by the hydrolysis of Al2(OH)5Cl from 3.9 × 10-3 m/s to 17 × 10-3 m/s compared with the use of coagulant alone.Downloads
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1. Zhang Z., Jing R., He S., Qian J., Zhang K., Ma G., Chang X., Zhang M., Li Y. - Coagulation of Low Temperature and Low Turbidity Water: Adjusting Basicity of Polyaluminum Chloride (PAC) and Using Chitosan as Coagulant Aid, Separation and Purification Technology 206 (2018) 131-139. https://doi.org/10.1016/ j.seppur.2018.05.051
2. Bratskaya S. Yu., Chervonetsky D. V., Avramenko V. A. Yudakov A. A., Yukhkam A. A., Sergienko V.I. - Polysaccharides in the processes of water treatment and processing of wastewater of various compositions, Bulletin of the Far Eastern Branch of the Russian Academy of Sciences 5 (2006) 47-56.
3. Mega Ng. Liana A.E., Liu S., Lim M., Chow C.W.K., Wang D., Drikas M., Amal R. - Preparation and characterisation of new-polyaluminum chloride-chitosan composite coagulant, Water Res. 46 (15) (2012) 4614-4620. DOI :10.1016/j.watres.2012.06.021
4. Zemmouri H., Drouiche M., Sayeh A., Lounici H., Mameri N. - Coagulation Flocculation Test of Keddara's Water Dam Using Chitosan and Sulfate Aluminium, Procedia Eng. 33 (2012) 254-260. https://doi.org/10.1016/j.proeng.2012.01.1202
5. Shaylinda M. Z. N., Hamidi A. A., Mohd N. A., Ariffin A., Irvan D., Hazreek Z. A. M. and Nizam Z. M. - Optimization of composite coagulant made from polyferric chloride and tapioca starch in landfill leachate treatment, J. Phys.: Conf. Ser. 995 (1) (2018) 012019. DOI :10.1088/1742-6596/995/1/012019.
6. Zhou L., Zhou H., Yang X. - Preparation and performance of a novel starch-based inorganic/organic composite coagulant for textile wastewater treatment, Sep. Purif. Technol. 210 (2019) 93-99. https://doi.org/10.1016/j.seppur.2018.07.089.
7. Lee K. E., Hanafiah M. M., Halim A. A., Mahmud M. H. - Primary treatment of dye wastewater using aloe vera-aided aluminium and magnesium hybrid coagulants, Procedia Environ. Sci. 30 (2015) 56-61. c10.1016/j.proenv.2015.10.010
8. Xia X., Lan S., Li X., Xie Y., Liang Y., Yan P., Chen Z., Xing Y. - Characterization and coagulation-flocculation performance of a composite flocculant in high turbidity drinking water treatment, Chemospher 206 (2018) 701-708. https://doi.org/10.1016/ j.chemosphere.2018.04.159
9. Mcyotto F. O., Wei Q., Chow Ch. W. K., Nadeem Z., Li Z., Liu J. - Eco-friendly decolorization of cationic dyes by coagulation using natural coagulant Bentonite and biodegradable flocculant Sodium Alginate, Juornal of Earth Sciences & Environmental Studies 5 (2) (2020) 51-60. DOI: 10.25177/JESES.5.2.RA.10648
10. Arenas R., Gentile S. R., Zimmerman S., Stoll S. - Comparative Study of the Effect of Aluminum Chloride. Sodium Alginate and Chitosan on the Coagulation of Polystyrene Micro-Plastic Particles, J. Colloid Sci. Biotechnol. 5 (2016) 190-198. doi:10.1166/ jcsb.2016.1149
11. Wang Y., Li X., Wu С., Zao Y., Gao B.Y.,Yue Q. - The role of sodium alginate in improving floc size and strength and the subsequent effects on ultrafiltration membrane fouling, Environ. Technol. 35 (1) (2014) 10-17. DOI: 10.1080/09593330.2013.800589
12. Babenkov E. D. - Treatment of water by coagulants, Moskow: Nauka, 1977.
13. Nikolsky B. P., Grigorov O. N., Pozin M. E. - Handbook of a chemist: in 6 volumes / editorial board: - 2nd ed.. Rev. and additional, Moscow: Chemistry, V. 2. 1963, pp. 1963-1968.
14. Frolov Y. G. - Course of colloid chemistry. Surface phenomena and disperse systems. Textbook for high schools, Moskow: Chemistry, 1988.
15. Draginsky V. L. - Proposals for improving the efficiency of water purification in the preparation of water treatment plants to meet the requirements of SanPiN 2.1.4.559-96 “Drinking water. Hygienic requirements for water quality of centralized drinking water supply systems. Quality control", Research Institute of Communal Water Supply and Water Treatment, Moscow, 1998.
16. Kurenkov V. F., Khartan Kh. G., Lobanov F. I. - Application of polyacrylamide flocculants for water treatment, Chemistry and Computer Modeling, Butler messages 11 (2002) 31-40.
17. Zyhmant A. V., Savitskaya T. A., Tsygankova N. G., Grinshpan D. D. - The effect of aluminium coagulation composition and mixing condition on characteristics of dispersions formed. Vescì Nacyânalʹnaj akadèmìì navuk Belarusì, Seryâ hìmìčnyh navuk 1 (2016) 27-32.
18. Pawlik P., Blasiak B., Depciuch J., Pruba M., Kitala D., Vorobyova S., Stec M., Bushinsky M., Konakov A., Baran J., Fedotova J., Ivashkevich O., Parlinska-Wojtan M., and Maximenko A. - Application of iron-based magnetic nanoparticles stabilized with triethanolammonium oleate for theranostics, J. Mater Sci. 57 (2022) 4716-4737. https://doi.org/10.1007/s10853-021-06244-y
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