Treatment efficiency of fish processing wastewater in different types of biological reactors

Agata Nowak , Robert Mazur , Ewa Panek , Ewa Dacewicz , Krzysztof Chmielowski


Fish processing technologies generate a significant amount of organic waste, both solid and liquid. Fish wastewater (FWW), if untreated or ineffectively treated, poses a threat to the aquatic environment. We investigated efficiency of different types of bioreactors with fixed and moving beds in the treatment of wastewater from fish processing. Pollution levels in raw effluents reached 260–660 mg O2 · dm−3 for BOD5, 450–950 mg O2 · dm−3 for suspended chemical oxygen demand (SCOD), 16.5–23 mg dm−3 for PO43-, and 10–18 mg dm−3 for NH4+. It was typical wastewater such as leachate and wastewater after fish processing. The models of bioreactors (on a laboratory scale) identified ring fixed bed reactors (RFBR) as the most efficient under efficient aeration. Average reduction of COD and BOD5 in RFBR was 44–80%, and 72–77% respectively, and for nutrients, it ranged from 16 to 34% for PO43- and reached 42% for NH4+. The other experimental bioreactors were significantly less effective. The application of FRBR in wastewater treatment from fish processing would allow effective reduction of organics pollutants and nutrients concentration in treated effluents.
Author Agata Nowak
Agata Nowak,,
, Robert Mazur
Robert Mazur,,
, Ewa Panek
Ewa Panek,,
, Ewa Dacewicz (FoEEaLS / DoSEaWM)
Ewa Dacewicz,,
- Department of Sanitary Engineering and Water Management
, Krzysztof Chmielowski (FoEEaLS / DoSEaWM)
Krzysztof Chmielowski,,
- Department of Sanitary Engineering and Water Management
Journal seriesPhysics and Chemistry of the Earth, ISSN 1474-7065, e-ISSN 1873-5193, (N/A 70 pkt)
Issue year2019
Publication size in sheets0.5
Keywords in EnglishFish processing waste, MBBR, Wastewater treatment, Water pollution
ASJC Classification1906 Geochemistry and Petrology; 1908 Geophysics
Internal identifierWIŚIG/2019/22
Languageen angielski
Score (nominal)70
Score sourcejournalList
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.97; WoS Impact Factor: 2018 = 1.968 (2) - 2018=2.189 (5)
Citation count*3 (2020-06-06)
Additional fields
FinansowaniePaper has been prepared within the scope of the AGH UST statuatory research no. and Dean`s grants for young research no.
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