The Effect of Ozonation, Coagulation and Adsorption on Natural Organic Matter Removal

• Autorzy: Dąbrowska Lidia

Identyfikatory

DOI

10.12911/22998993/141377

• Języki publikacji: EN

Abstrakty

EN

For the treatment of surface water, the coagulation process was used with highly alkaline polyaluminium chloride PAX-XL19F and coagulation supported by ozonation and adsorption on powdered activated carbon CWZ-30 for reducing the level of surface water pollution with organic substances. In addition to the typical indices used to assess the content of organic compounds (total organic carbon TOC, oxidisability OXI, ultraviolet absorbance UV₂₅₄), the study also evaluated colour, turbidity, and the potential of trihalomethanes formation THM-PF. Reduction in the content of TOC in water after coagulation ranged from 22 to 24%, OXI in the range of 34-36%, and UV₂₅₄ absorbance from 52-55%. The turbidity and colour of the water was reduced by 70-73% and 56-60%, respectively. The use of preliminary ozonation and activated carbon-assisted coagulation increased the efficiency of water treatment. Changes in the values of TOC, OXI, UV₂₅₄ absorbance, turbidity and colour were 28-33%, 45-46%, 69-73%, 72-79% and 89-100%, respectively. In the water purified by coagulation and then chlorinated, THM-PF was 37-38% lower than in untreated surface water. The use of additional pre-ozonation and activated carbon during coagulation increased the reduction of THM-PF by 9-12%.

Słowa kluczowe

EN

ozone; activated carbon; polyaluminium chloride; trihalomethane precursor

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2021
• Tom: Vol. 22, nr 9
• Strony: 216--223
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Dąbrowska Lidia

• Faculty of Infrastructure and Environment, Czestochowa University of Technology, ul. Dąbrowskiego 73, 42-201 Częstochowa, Poland

• https://orcid.org/0000-0002-2511-021X

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