Treatment efficiency of fish processing wastewater in different types of biological reactors
Agata Nowak , Robert Mazur , Ewa Panek , Ewa Dacewicz , Krzysztof Chmielowski
AbstractFish 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.
|Journal series||Physics and Chemistry of the Earth, ISSN 1474-7065, e-ISSN 1873-5193, (N/A 70 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Fish processing waste, MBBR, Wastewater treatment, Water pollution|
|Publication indicators||= 0; : 2017 = 0.97; : 2018 = 1.968 (2) - 2018=2.189 (5)|
|Citation count*||3 (2020-06-06)|
|Finansowanie||Paper has been prepared within the scope of the AGH UST statuatory research no. 11.11.150.008 and Dean`s grants for young research no. 188.8.131.522.|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.