Biological Nutrient Removal in a Full Scale Anoxic/Anaerobic/Aerobic/Pre-anoxic-MBR Plant for Low C/N Ratio Municipal Wastewater Treatment

胡香; 谢丽; SHIM Hojae; 张善发; 杨殿海

doi:10.1016/S1004-9541(14)60064-1

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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

催化、动力学与反应工程 | Updated：2026-01-06

- 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 Vol. 22, Issue 4, Pages: 447-4541004-954160064-1(2014)
- Affiliations：
  
  1. 2 Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macau SAR,China
  2. 3 Shanghai Urban Construction Design and Research Institute,Shanghai,China,200125
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(14)60064-1
  CLC：
- Published：2014
- Accepted：
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HU Xiang, XIE Li, SHIM Hojae, ZHANG Shanfa, YANG Dianhai. Biological Nutrient Removal in a Full Scale Anoxic/Anaerobic/Aerobic/Pre-anoxic-MBR Plant for Low C/N Ratio Municipal Wastewater Treatment[J]. Chin.J.Chem.Eng., 2014, 22(4): 447-454.
DOI：

HU Xiang, XIE Li, SHIM Hojae, ZHANG Shanfa, YANG Dianhai. Biological Nutrient Removal in a Full Scale Anoxic/Anaerobic/Aerobic/Pre-anoxic-MBR Plant for Low C/N Ratio Municipal Wastewater Treatment[J]. Chin.J.Chem.Eng., 2014, 22(4): 447-454. DOI： 10.1016/S1004-9541(14)60064-1.

摘要

Abstract

A novel full scale modified A

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 NH

-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 treat

ing low C/N ratio municipal wastewater in the modified A

O-MBR process.

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