Automatic batch sedimentation test based on histogram back-projection image analysis

• Autorzy: Nocoń Witold , Pośpiech Jakub , Kopciński Jacek

Identyfikatory

DOI

10.24425/bpasts.2021.136187

• Języki publikacji: EN

Abstrakty

EN

A new method for measurement of sludge blanket height (SBH) based on image analysis is presented. The proposed method uses a histogram back-projection algorithm to distinguish between the settling sludge and supernatant and can be used with sludge possessing different coloring characteristics both in the sludge color and the color of supernatant produced. Individual pixels in the acquired image are compared with a histogram of a representative sludge region. Therefore, the proposed method relies neither on the assumed shape of light intensity profile nor on the dominant sludge or supernatant color. Batch sedimentation tests are presented for different initial sludge concentrations and different background colors to simulate different sludge characteristics. Parameters of a settling velocity function are estimated based on the obtained results. Additionally, an algorithm is proposed that enables the zone settling velocity (ZSV) to be estimated before the batch sedimentation test is completed.

Słowa kluczowe

EN

batch sedumentation test; activated sludge; image analysis; control of recycle in WWTPs

PL

test sedymentacji partii; osad czynny; analiza obrazu; kontrola recyklingu; oczyszczalnia ścieków

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2021
• Tom: Vol. 69, nr 1
• Strony: art. no. e136187
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Nocoń Witold

• Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland

• https://orcid.org/0000-0002-4785-958X

autor

Pośpiech Jakub

• Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland

• https://orcid.org/0000-0002-2425-4799

autor

Kopciński Jacek

• MM Automation, ul. E. Bojanowskiego 27a, 40-772 Katowice, 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 (2021).