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Article

Water Treatment in Hybrid Connection of Coagulation, Ozonation, UV Irradiation and Adsorption Processes

Faculty of Infrastructure and Environment, Czestochowa University of Technology, Dąbrowskiego St. 69, 42-201 Częstochowa, Poland
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Academic Editor: Antonio Zuorro
Water 2021, 13(13), 1748; https://doi.org/10.3390/w13131748
Received: 8 May 2021 / Revised: 18 June 2021 / Accepted: 22 June 2021 / Published: 24 June 2021
(This article belongs to the Section Wastewater Treatment and Reuse)
In recent years, conventional water treatment systems have been supported by ozonation or UV irradiation processes. The efficiency of four hybrid processes: (1) coagulation and adsorption, (2) ozonation and coagulation, (3) ozonation, coagulation and adsorption, (4) ozonation, UV irradiation, coagulation and adsorption of inorganic and organic pollutants removal was analysed. In the presented study, the content of organic matter in natural water was evaluated as colour, oxidisability (OXI), total and dissolved organic carbon (TOC and DOC) content and UV absorbance at the wavelength of 254 nm for natural and modified water. Additionally, removal of Ni2+, Cd2+and Pb2+ ions during the treatment processes was analysed. The coagulation process with the use of polyaluminium chloride removed 45% of colour and 39, 26% and 45% of OXI, TOC and UV absorbance, respectively. Using the ozonation before coagulation increased efficiency of colour and UV254 absorbance reduction by 33% and 25%, respectively. Coagulation with both UV irradiation and adsorption had insignificant results on the analysed factors value. The coagulation process was the most efficient for metal ions removal (40–78%). The ozonation process before coagulation increased removal up to 55–85%. Additional irradiation with UV or using of the adsorbent during coagulation of initially ozonated water had an insignificant impact on metal ions concentration in water. View Full-Text
Keywords: hybrid processes; water treatment; coagulation; adsorption; ozonation; UV irradiation; heavy metals; organic matter hybrid processes; water treatment; coagulation; adsorption; ozonation; UV irradiation; heavy metals; organic matter
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MDPI and ACS Style

Karwowska, B.; Sperczyńska, E.; Dąbrowska, L. Water Treatment in Hybrid Connection of Coagulation, Ozonation, UV Irradiation and Adsorption Processes. Water 2021, 13, 1748. https://doi.org/10.3390/w13131748

AMA Style

Karwowska B, Sperczyńska E, Dąbrowska L. Water Treatment in Hybrid Connection of Coagulation, Ozonation, UV Irradiation and Adsorption Processes. Water. 2021; 13(13):1748. https://doi.org/10.3390/w13131748

Chicago/Turabian Style

Karwowska, Beata, Elżbieta Sperczyńska, and Lidia Dąbrowska. 2021. "Water Treatment in Hybrid Connection of Coagulation, Ozonation, UV Irradiation and Adsorption Processes" Water 13, no. 13: 1748. https://doi.org/10.3390/w13131748

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