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Drum filter performance in a recirculating eel culture unit
Author(s) -
Langer J.,
Efthimiou S.,
Rosenthal H.,
Bronzi P.
Publication year - 1996
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/j.1439-0426.1996.tb00062.x
Subject(s) - clogging , drum , filtration (mathematics) , filter (signal processing) , particle (ecology) , suspended solids , biology , materials science , pulp and paper industry , environmental engineering , environmental science , ecology , engineering , mathematics , wastewater , mechanical engineering , statistics , electrical engineering , archaeology , history
The performance of a drum filter of a recirculating eel culture unit was studied. Electron microscopy scanning micrographs of drum filter panels showed a high degree of clogging of the filter mesh (after 4 months of operation). Mean removal efficiency for Total Suspended Solids (TSS) fluctuated considerably between subsequent sampling periods (9.6–18.4%). Drum filtration changed the particle size distribution of fish tank drainage water, resulting in increasing amounts (from 56 to 67% of dry weight, before and after filter passage) of the smaller particle fractions (< 20 μm), thereby indicating a partial breakdown of larger particles during the filtration process. Possible reasons for rapid filter clogging and suggestions for improvements in filter performance are discussed.