Abstract
This paper describes the mechanism of nitrogen and phosphorus removal by activated sludge process, and introduces several conventional nitrogen and phosphorus bioremoval processes, namely sequencing batch reactor (SBR), anaerobic-anoxic-aerobic (AAO), oxidation ditch, and bio-doubling process (BDP). Many improved technologies were invented to compensate for the defects of conventional activated sludge process Nitrogen and phosphorus bioremoval by activated sludge process have many similarities and conflicts, including different sludge characteristics and competition for carbon sources that affect the results of the simultaneous nitrogen and phosphorus removal. Therefore, a series of countermeasures to resolve such conflicts are reviewed. Economy, sefficiency and low energy consumption will be the developing trends of wastewater treatment in the future.
Keywords: Activated sludge, denitrification, phosphorus, sequencing batch reactor, oxidation ditch, anaerobic-anoxic-aerobic, bio-doubling process.
Graphical Abstract
Mini-Reviews in Organic Chemistry
Title:Nitrogen and Phosphorus Removal by Activated Sludge Process: A Review
Volume: 14 Issue: 2
Author(s): Zhengan Zhang, Shulin Pan, Fei Huang*, Xiang Li, Juanfang Shang, Jun Lai and Yitao Liao
Affiliation:
- College of Resource and Environmental Engineering, Yibin University, Yibin, 644000,China
Keywords: Activated sludge, denitrification, phosphorus, sequencing batch reactor, oxidation ditch, anaerobic-anoxic-aerobic, bio-doubling process.
Abstract: This paper describes the mechanism of nitrogen and phosphorus removal by activated sludge process, and introduces several conventional nitrogen and phosphorus bioremoval processes, namely sequencing batch reactor (SBR), anaerobic-anoxic-aerobic (AAO), oxidation ditch, and bio-doubling process (BDP). Many improved technologies were invented to compensate for the defects of conventional activated sludge process Nitrogen and phosphorus bioremoval by activated sludge process have many similarities and conflicts, including different sludge characteristics and competition for carbon sources that affect the results of the simultaneous nitrogen and phosphorus removal. Therefore, a series of countermeasures to resolve such conflicts are reviewed. Economy, sefficiency and low energy consumption will be the developing trends of wastewater treatment in the future.
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Cite this article as:
Zhang Zhengan, Pan Shulin, Huang Fei*, Li Xiang, Shang Juanfang, Lai Jun and Liao Yitao, Nitrogen and Phosphorus Removal by Activated Sludge Process: A Review, Mini-Reviews in Organic Chemistry 2017; 14 (2) . https://dx.doi.org/10.2174/1570193X14666161130151411
DOI https://dx.doi.org/10.2174/1570193X14666161130151411 |
Print ISSN 1570-193X |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6298 |
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