Removal of Hardly Bio-Degradabale Organic Compounds from Wastewater by Means of Reagentless Methods

• Autorzy: Szulżyk-Cieplak J.

Identyfikatory

DOI

10.12911/22998993/74634

• Języki publikacji: EN

Abstrakty

EN

The paper discusses the issue of removing persistent organic pollutants (POPs) from wastewater, especially the polycyclic organic hydrocarbons (PAHs). The results obtained in literature studies indicate that the commonly employed traditional methods of wastewater treatment are not always efficient in eliminating the hardly bio-degradable pollutants. Therefore, extensive research is being conducted on the application of efficient POPs removal technologies. One of the considered variants involves incorporating advanced oxidation processes (AOP) into the wastewater treatment systems based on the biological processes. These include the reagentless methods, e.g. the processes involving ultrasounds and hydrodynamic cavitation. On the basis of the author’s own studies conducted in a laboratory system comprising a static cavitation reactor, the possibility of applying hydrodynamic cavitation for the decomposition of PAHs was evaluated on the basis of model solutions of anthracene and phenanthrene. It was shown that the employed advanced oxidation process with hydro-cavitation has a significant impact on reducing the concentration of the considered PAHs. It was confirmed that the degradation degree of a substance depends on the intensity and the course of the cavitation process. The energy efficiency of the conducted process was analyzed as well and expressed as the ratio pertaining to the amount of the degraded compound to the electric energy supplied to the system.

Słowa kluczowe

EN

advanced oxidation processes; hydrodynamic cavitation; persistent organic pollutants; polycyclic aromatic hydrocarbons

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2017
• Tom: Vol. 18, nr 5
• Strony: 63--71
• Opis fizyczny: Bibliogr. 34 poz., rys.

Twórcy

autor

Szulżyk-Cieplak J.

• Faculty of Fundamentals of Technology, Lublin University of Technology, ul. Nadbystrzycka 38, 20-618 Lublin, Poland

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