Wet Oxidation of Dairy Sewage

• Authors: Klara Piotrowska , Mirosław Imbierowicz , Andrzej Chacuk
• Languages of publication: EN

Abstracts

EN

Results of kinetic studies on the process of wet oxidation of dairy sewage are presented. Experiments were carried out in a stirred batch tank reactor at the oxygen partial pressure equal to 1 MPa and at temperature ranging from 473 to 523 K. Dairy sewage was subjected to oxidation at a natural pH close to 4. The efficiency of decomposition of organic compounds was estimated on the basis of TOC measurement. The highest TOC reduction rate reached 79.6%. A kinetic model of the process was proposed and its parameters were determined experimentally. Good agreement of the experimental and calculated results was obtained.

PL

W pracy przedstawiono wyniki badań kinetycznych procesu mokrego utleniania ścieków przemysłu mleczarskiego. Badania przeprowadzono w okresowym reaktorze zbiornikowym z mieszadłem, przy ciśnieniu cząstkowym tlenu PO2 = 1 MPa, w zakresie temperatury od 473 do 523 K. Utlenianiu poddawano ścieki mleczarskie o ich naturalnym odczynie zbliżonym do wartości 4. Oceny efektywności rozkładu związków organicznych dokonano na podstawie pomiaru wartości TOC. Najwyższy stopień redukcji TOC ukształtował się na poziomie 79,6%. Zaproponowano model kinetyczny procesu i na podstawie badań eksperymentalnych określono jego parametry. Uzyskano dobrą zgodność wyników doświadczalnych i obliczeniowych.

Keywords

EN

wet oxidation; dairy sewage; kinetic model

PL

mokre utlenianie; ścieki mleczarskie; model kinetyczny

• Publisher: De Gruyter Open
• Journal: Ecological Chemistry and Engineering S
• Year: 2012
• Volume: 19
• Issue: 1
• Pages: 29-38

Dates

published

1 - 1 - 2012

online

8 - 11 - 2011

Contributors

author

Klara Piotrowska

• Faculty of Process and Environmental Engineering, Technical University of Lodz, ul. Wólczańska 213, 90-924 Łódź, Poland

author

Mirosław Imbierowicz

• Faculty of Process and Environmental Engineering, Technical University of Lodz, ul. Wólczańska 213, 90-924 Łódź, Poland

author

Andrzej Chacuk

• Faculty of Process and Environmental Engineering, Technical University of Lodz, ul. Wólczańska 213, 90-924 Łódź, Poland

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Identifiers

DOI

10.2478/v10216-011-0003-1