Improving an Efficient Wastewater Treatment Technology Based on Cation Exchanges and Natural Biopolymers
DOI:
https://doi.org/10.65150/EP-jnsrr/V2E6/2026-01Keywords:
wastewater, cation exchange resin, biopolymer, chitosan, cellulose, adsorption, filtration, paulownia charcoal, amaranth stem, water purification.Abstract
This article examines wastewater treatment processes in the Tashkent River using cation exchangers and natural biopolymers. The study examined the key physicochemical parameters of the wastewater composition, including turbidity, total hardness, organic matter, iron ions, nitrates, and phosphates. Chitosan, cellulose, cation exchange resin, amaranth stem, and paulownia charcoal were used as adsorbents and sorbents in the bleaching process.
In each experiment, wastewater from the Tashkent River was mixed with the selected material for 30 minutes, then filtered, and the results were analyzed using charts. The study results showed a significant reduction in suspended particles, organic pollutants, and heavy metal ions in the water. In particular, chitosan and paulownia charcoal demonstrated effective results with high adsorption properties, while the cation exchange resin demonstrated high efficiency in reducing water hardness.
Based on the obtained scientific results, an improved wastewater treatment process flowsheet was developed. The proposed technology is important in terms of environmental safety, cost-effectiveness, and the ability to utilize local raw materials.
References
1) Мирзиёев Ш.М. Экологик хавфсизлик ва атроф-муҳит муҳофазаси соҳасидаги ислоҳотлар. – Тошкент: Ўзбекистон, 2023.
2) Арипов Р.А., Исмоилов И.И. Сувни тозалаш технологиялари. – Тошкент: Фан, 2021.
3) Crini G., Lichtfouse E. Advantages and disadvantages of techniques used for wastewater treatment // Environmental Chemistry Letters. – 2019. – Vol. 17. – P. 145–155.
4) Fu F.,Wang Q. Removal of heavy metal ions from wastewaters:A review//Journal of Environmental Management.–2011.–Vol.92.–P. 407–418.
5) O‘zDSt 951:2011. Oqava suvlar. Umumiy texnik shartlar. – Toshkent, 2011.
6) СанПиН №0083-99. Оқова сувларни сув ҳавзаларига ташлаш санитария қоидалари. – Тошкент, 1999.
7) Ahmed S., Ikram S. Chitosan and its derivatives for water treatment applications // Journal of Environmental Chemical Engineering. – 2016. – Vol. 4. – P. 4117–4129.
8) Демидов Н.Н. Ионообменные материалы и их применение. – Москва: Химия, 2018.
9) Маткаримов У.М. Табиий сорбентлар асосида сув тозалаш усуллари // Кимё ва кимё технологияси. – 2022. – №4. – Б. 52–58.
10) Bhattacharya A.K., Mandal S.N., Das S.K. Adsorption of Zn(II) from aqueous solution by using different adsorbents // Chemical Engineering Journal. – 2006. – Vol. 123. – P. 43–51.
11) O’zDSt 951 “Oqava suvlar. Umumiy texnik shartlar”.
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Copyright (c) 2026 Polvon Ruzmatovich Sharipov, Muazzamkhon Nazirjon Norbutaeva (Author)

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