Physicochemical methods of nitrates removal from wastewater

• Autorzy: Żołnierczyk, Maciej , Barbusiński, Krzysztof
• Języki publikacji: EN

Abstrakty

EN

Nitrate(V) ions in surface water and sewage are pollutants, which excessive concentration have a negative impact on aquatic ecosystems. Due to the chemical properties, removal of nitrates from wastewater is a difficult process. In the municipal sector, biological denitrification (activated sludge) is the most commonly used process. However, in the case of industrial wastewater, where inhibiting substances or substances toxic to microorganisms are present in wastewater, it is necessary to use other types of methods. It is possible to distinguish here methods based on physicochemical processes, in particular: physicochemical separation, chemical or electrochemical reduction and oxidation under supercritical conditions. At present, membrane methods and ion exchange processes are used mainly in the industrial sector because of the high knowledge of the technology and the amount of applications used. Intensive studies are also being carried out on methods using chemical reduction processes, where greatest advantage is the ability to transform nitrates to neutral molecular nitrogen.

Słowa kluczowe

PL

redukcja chemiczna; denitryfikacja chemiczna; azotan; usuwanie azotanów

EN

chemical reduction; chemical denitrification; nitrates; nitrate removal

• Czasopismo: Architecture Civil Engineering Environment
• Rocznik: 2019
• Tom: Vol. 12, no. 3
• Strony: 153--159
• Opis fizyczny: Bibliogr. 24 poz.

Twórcy

autor

Żołnierczyk, Maciej

• MSc, PhD student; The Silesian University of Technology, Faculty of Energy and Environmental Engineering, Institute of Water and Wastewater Engineering, Konarskiego 18, 44-100, Gliwice, Poland,

autor

Barbusiński, Krzysztof

• Prof.; The Silesian University of Technology, Faculty of Energy and Environmental Engineering, Institute of Water and Wastewater Engineering, Konarskiego 18, 44-100, Gliwice, Poland,

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).

Identyfikatory

DOI

10.21307/ACEE-2019-046