期刊
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
卷 36, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1007/s11274-020-02853-y
关键词
High-strength wastewater; Biofilm; Energy; Passive aeration; Activated sludge; Glycogen accumulating organisms
资金
- program of Jiangsu Distinguished Professor and the Innovation/Entrepreneurship Program of Jiangsu Province
Biofilm reactors retain microbial cells in the form of biofilm which is attached to free moving or fixed carrying materials, thus providing a high active biomass concentration and automatic liquid and solid separation. Nowadays, microbial biofilm reactors have been widely used in high-strength wastewater treatment where very high pollutant removal efficiency is required, which usually requires excessive space and aeration energy for conventional activated sludge-based treatment. This paper provides an overview of microbial biofilm reactors developed over the last half-century, including moving bed biofilm reactor (MBBR), trickling filter (TF) reactor, rotating biological contactor (RBC), membrane biofilm reactor (MBfR), passive aeration simultaneous nitrification and denitrification (PASND) biofilm reactor, for their applications in high-strength wastewater treatment of not only removing carbon, nitrogen, sulphur but also a variety of oxidized contaminants including perchlorate and bromate. Despite the advance of biofilm reactor that exhibits high resistance to excessive pollutants loading, its drawbacks both from engineering and microbiological point of view are reviewed. The future prospects of biofilm reactor are also discussed in this review paper.
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