Sonification Energy in the Process of Ultrasonic Disintegration

• Autorzy: Wolski Paweł

Identyfikatory

DOI

10.12911/22998993/118301

• Języki publikacji: EN

Abstrakty

EN

Disintegration of sewage sludge leads to the breakdown of the structure of the sewage floc and release of intracellular fluids. This allows for easy removal of organic compounds that are contained in the cells during further processes of treatment of waste and processing of sludge. One of the methods of disintegration is the use of ultrasound field energy. Depending on the applied process parameters (exposure time, intensity), coagulation or dispersion of the sludge flocs may occur. The aim of the research was to determine the amount of sonication energy supplied to the sludge and the related costs of the disintegration process. The study used digested sewage sludge, which was exposed to ultrasound field energy of different intensity (from 1.6 W/cm² to 3.8 W/cm²) and exposure time (from 2 to 120s). The sewage sludge sonication process was conducted using Sonics VCX-1500 ultrasonic processor with a maximum output power of 1500W. The vibration frequency of the ultrasound field of the generator was 20 kHz, whereas the maximum wavelength for the 100% amplitude, was 39.42 µm. Energy demand was recorded during each measurement and the amount of sonication energy supplied to the system was calculated relative to dry matter. The experiments showed an increase in the demand for energy along with the extension of the exposure time and the increase in the intensity of the ultrasound field. For two of sludge samples with comparable dry matter content, the sonication energy values were similar.

Słowa kluczowe

EN

sewage sludge; disintegration; sonication energy

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2020
• Tom: Vol. 21, nr 3
• Strony: 36--40
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Wolski Paweł

• Czestochowa University of Technology, Faculty of Infrastructure and Environment, Institute of Environmental Engineering, Brzeznicka 60a, 42-200 Czestochowa, Poland

Bibliografia

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Uwagi

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