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Biological Nutrient Removal in a Full Scale Anoxic/Anaerobic/Aerobic/Pre-anoxic-MBR Plant for Low C/N Ratio Municipal Wastewater Treatment
Hu Xiang1; Xie Li1; Shim, Hojae2; Zhang Shanfa3; Yang Dianhai1
2014-04
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume22Issue:4Pages:447-454
AbstractA novel full scale modified A(2)O (anoxic/anaerobic/aerobic/pre-anoxic)-membrane bioreactor (MBR) plant combined with the step feed strategy was operated to improve the biological nutrient removal (BNR) from low C/N ratio municipal wastewater in Southern China. Transformation of organic carbon, nitrogen and phosphorus, and membrane fouling were investigated. Experimental results for over four months demonstrated good efficiencies for chemical oxygen demand (COD) and NH4+-N removal, with average values higher than 84.5% and 98.1%, respectively. A relatively higher total nitrogen (TN) removal efficiency (52.1%) was also obtained at low C/N ratio of 3.82, contributed by the configuration modification (anoxic zone before anaerobic zone) and the step feed with a distribution ratio of 1 : 1. Addition of sodium acetate into the anoxic zone as the external carbon source, with a theoretical amount of 31.3 mg COD per liter in influent, enhanced denitrification and the TN removal efficiency increased to 74.9%. Moreover, the total phosphate (TP) removal efficiency increased by 18.0%. It is suggested that the external carbon source is needed to improve the BNR performance in treating low C/N ratio municipal wastewater in the modified A(2)O-MBR process.
DOI10.1016/S1004-9541(14)60064-1
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000334029500011
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Citation statistics
Cited Times [WOS]:28   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorXie Li
Affiliation1.Tongji Univ, State Key Lab Pollut Control & Resources Reuse, Shanghai 200092, Peoples R China
2.Univ Macau, Fac Sci & Technol, Dept Civil & Environm Engn, Taipa, Macau Sar, Peoples R China
3.Shanghai Urban Construct Design & Res Inst, Shanghai 200125, Peoples R China
Recommended Citation
GB/T 7714
Hu Xiang,Xie Li,Shim, Hojae,et al. Biological Nutrient Removal in a Full Scale Anoxic/Anaerobic/Aerobic/Pre-anoxic-MBR Plant for Low C/N Ratio Municipal Wastewater Treatment[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2014,22(4):447-454.
APA Hu Xiang,Xie Li,Shim, Hojae,Zhang Shanfa,&Yang Dianhai.(2014).Biological Nutrient Removal in a Full Scale Anoxic/Anaerobic/Aerobic/Pre-anoxic-MBR Plant for Low C/N Ratio Municipal Wastewater Treatment.CHINESE JOURNAL OF CHEMICAL ENGINEERING,22(4),447-454.
MLA Hu Xiang,et al."Biological Nutrient Removal in a Full Scale Anoxic/Anaerobic/Aerobic/Pre-anoxic-MBR Plant for Low C/N Ratio Municipal Wastewater Treatment".CHINESE JOURNAL OF CHEMICAL ENGINEERING 22.4(2014):447-454.
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