Enhanced biological nutrient removal inmodified carbon source division anaerobic anoxic oxic process with return activated sludge pre-concentration

Qin Lu; Haiyan Wu; Haoyan Li; Dianhai Yang

doi:10.1016/j.cjche.2014.11.013

Your Location：

Home >

Browse articles >

Enhanced biological nutrient removal inmodified carbon source division anaerobic anoxic oxic process with return activated sludge pre-concentration

能源、资源与环境技术 | Updated：2026-01-06

- Enhanced biological nutrient removal inmodified carbon source division anaerobic anoxic oxic process with return activated sludge pre-concentration
- Enhanced biological nutrient removal inmodified carbon source division anaerobic anoxic oxic process with return activated sludge pre-concentration
- 中国化学工程学报（英文版） 2015年第6期页码：1027-1034
- Affiliations：
  
  1. State Key Lab. of Pollution Control and Resources Reuse, College of Environmental Sciences and Engineering, Tongji University,Shanghai,China,200092
  2. 2 Xylem (China) Co., Ltd.,Shanghai,China,200051
  3. 3 Shanghai Plant Biomass Co., Ltd.,Shanghai,China,200092
- Author bio：
- Funds：
  
  Supported by the Major Science and Technology Program forWater Pollution Control and Treatment-Crucial Technology Research and Engineering Sample Subject on Municipal Wastewater Treatment Process Updated to Higher Drainage Standard (2008ZX07317-02) belonging to Wuhan Water Pollution Control and the Water Environment Administer Technology and Synthetic Sample Project in Cities and Towns (2008ZX07317).
- DOI：10.1016/j.cjche.2014.11.013
  中图分类号：
- 纸质出版：2015
- Accepted：
Scan QR Code
Qin Lu, Haiyan Wu, Haoyan Li, 等. Enhanced biological nutrient removal inmodified carbon source division anaerobic anoxic oxic process with return activated sludge pre-concentration[J]. 中国化学工程学报（英文版）, 2015,(6):1027-1034.

Qin Lu, Haiyan Wu, Haoyan Li, et al. Enhanced biological nutrient removal inmodified carbon source division anaerobic anoxic oxic process with return activated sludge pre-concentration[J]. Chinese Journal of Chemical Engineering, 2015, (6): 1027-1034.
Qin Lu, Haiyan Wu, Haoyan Li, 等. Enhanced biological nutrient removal inmodified carbon source division anaerobic anoxic oxic process with return activated sludge pre-concentration[J]. 中国化学工程学报（英文版）, 2015,(6):1027-1034. DOI： 10.1016/j.cjche.2014.11.013.

Qin Lu, Haiyan Wu, Haoyan Li, et al. Enhanced biological nutrient removal inmodified carbon source division anaerobic anoxic oxic process with return activated sludge pre-concentration[J]. Chinese Journal of Chemical Engineering, 2015, (6): 1027-1034. DOI： 10.1016/j.cjche.2014.11.013.

摘要

Abstract

A pilot-scale modified carbon source division anaerobic anoxic oxic (AAO) process with pre-concentration of returned activated sludge (RAS) was proposed in this study for the enhanced biological nutrient removal (BNR) of municipal wastewater with limited carbon source. The influent carbon source was fed in step while a novel RAS pre-concentration tank was adopted to improve BNR efficiency

and the effects of an influent carbon source distribution ratio and a RAS pre-concentration ratiowere investigated. The results showthat the removal efficiency of TN is mainly influenced by the carbon source distribution ratio while the TP removal relies on the RAS pre-concentration ratio. The optimum carbon source distribution ratio and RAS pre-concentration ratio are 60% and 50%

respectively

with an inner recycling ratio of 100% under the optimum steady operation of pilot test

reaching an average effluent TN concentration of 9.8 mg·L

-1

with a removal efficiency of 63% and an average TP removal efficiency of 94%. The mechanism of nutrient removal is discussed and the kinetics is analyzed. The results reveal that the optimal carbon source distribution ratio provides sufficient denitrifying

carbon source to each anoxic phase

reducing nitrate accumulation while the RAS pre-concentration ratio improves the condition of anaerobic zone to ensure the phosphorus release due to less nitrate in the returned sludge. Therefore

nitrifying bacteria

denitrifying bacteria and phosphorus accumulation organisms play an important role under the optimum condition

enhancing the performance of nutrient removal in this test.

关键词

Keywords

references

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

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

CO2 capture by ternary ionic liquid non-aqueous phase change solvents

Mechanochemical preparation and properties of B-N doped carbon materials based on calcium carbide

Preparation of novel hierarchical porous Fe2O3/SBA-15 with microporous plugs from coal gasification fine residue and its degradation of phenol in coal chemical wastewater

Optimizing energy efficiency in fluid catalytic cracking units with GA and NSGA-II: A comprehensive simulation and multi-factor analysis