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Waste mitigation and resource recovery from food industry wastewater employing microalgae-bacterial consortium

Authors
Sirohi, RanjnaJoun, JaeminLee, Ji YoungYu, Byung SunSim, Sang Jun
Issue Date
5월-2022
Publisher
ELSEVIER SCI LTD
Keywords
Waste mitigation; Resource recovery; Microalgae; Bacteria; Consortium
Citation
BIORESOURCE TECHNOLOGY, v.352
Indexed
SCIE
SCOPUS
Journal Title
BIORESOURCE TECHNOLOGY
Volume
352
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/141758
DOI
10.1016/j.biortech.2022.127129
ISSN
0960-8524
Abstract
Wastewater generated by the food industry is rich in nitrogen and phosphorus with possible presence of heavy metals. Physical and chemical methods of treatment, although effective, are expensive and may cause secondary environmental pollution damaging aquatic and human life. Traditional biological methods are eco-friendly and cost-effective but involve standalone microorganisms that pose risk of contamination and are not as effective. This review discusses the application of novel microalgal-bacterial consortium as a solution for the resource recovery and treatment of dairy, starch and aquaculture wastewater. Use of biofilm reactors containing anaerobic and aerobic sludge has shown 80-90% and > 90% COD and nutrient removal efficiency in treatment of dairy and starch processing wastewater, respectively. The treatment of aquaculture processing wastewater can be challenging due to high sality and requires salt-tolerant bacteria-microalgae consortium. In this regard, the identification of dominant microalgae and bacteria using 16S rRNA and 18S rRNA genes is recommended.
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