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Journal of Ecological Engineering

Tytuł artykułu

Trihalomethane Formation Potential in the Water Treated by Coagulation

Autorzy Dąbrowska, Lidia 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The aim of the research was to evaluate the effectiveness of the coagulation process using pre-hydrolysed salts, polyaluminium chlorides, in reduction of water pollution with organic substances, including precursors to formation of trihalomethanes (THMs) during water chlorination. Surface water collected from the Stradomka river and from the Adriatyk reservoir located in Częstochowa was used for the research. In addition to typical indices used to assess the content of organic compounds (total and dissolved organic carbon TOC and DOC, oxygen consumption, ultraviolet absorbance UV254), the study also evaluated the potential of THM formation. Under the laboratory conditions of the process using pre-hydrolysed coagulants, reductions in oxygen consumption and TOC contents depending on the month and place when water was collected were 17–42% and 14–38%, respectively, whereas reduction in UV254absorbance ranged from 39 to 69%. The study confirmed the usefulness of the coagulation process in the removal of organic matter, which represents a precursor for formation of trihalomethanes. The potential for THM formation in treated water was by 28–55% lower than in untreated surface water after chlorination. The concentration of trichloromethane was 78–93% of the total THM content in the chlorinated treated waters. Dissolved organic matter played a major role in CHCl3formation (76–88%).
Słowa kluczowe
EN coagulation process   organic matter   trihalomethanes   water  
Wydawca Polskie Towarzystwo Inżynierii Ekologicznej
Czasopismo Journal of Ecological Engineering
Rocznik 2019
Tom Vol. 20, nr 9
Strony 237--244
Opis fizyczny Bibliogr. 20 poz., rys., tab.
autor Dąbrowska, Lidia
  • Faculty of Infrastructure and Environment, Czestochowa University of Technology, Dąbrowskiego 73, 42-201 Częstochowa, Poland,
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Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-7f940657-492a-4dd0-9663-b2e72d75317f
DOI 10.12911/22998993/112484