Simultaneous removal of nitrogen and phosphorus from swine wastewater in a sequencing batch biofilm reactor

Reti Hai; Yiqun He; Xiaohui Wang; Yuan Li

doi:10.1016/j.cjche.2014.09.036

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Simultaneous removal of nitrogen and phosphorus from swine wastewater in a sequencing batch biofilm reactor

能源、资源与环境技术 | Updated：2026-01-06

- Simultaneous removal of nitrogen and phosphorus from swine wastewater in a sequencing batch biofilm reactor
- Simultaneous removal of nitrogen and phosphorus from swine wastewater in a sequencing batch biofilm reactor
- 中国化学工程学报（英文版） 2015年23卷第1期页码：303-308
- Affiliations：
  
  Center of Environmental Science and Technology, Beijing University of Chemical Technology,Beijing,China,100029
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2014.09.036
  中图分类号：
- 纸质出版：2015
- Accepted：
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Reti Hai, Yiqun He, Xiaohui Wang, 等. Simultaneous removal of nitrogen and phosphorus from swine wastewater in a sequencing batch biofilm reactor[J]. 中国化学工程学报（英文版）, 2015,23(1):303-308.

Reti Hai, Yiqun He, Xiaohui Wang, Yuan Li. Simultaneous removal of nitrogen and phosphorus from swine wastewater in a sequencing batch biofilm reactor[J]. Chin.J.Chem.Eng., 2015, 23(1): 303-308.
Reti Hai, Yiqun He, Xiaohui Wang, 等. Simultaneous removal of nitrogen and phosphorus from swine wastewater in a sequencing batch biofilm reactor[J]. 中国化学工程学报（英文版）, 2015,23(1):303-308. DOI： 10.1016/j.cjche.2014.09.036.

Reti Hai, Yiqun He, Xiaohui Wang, Yuan Li. Simultaneous removal of nitrogen and phosphorus from swine wastewater in a sequencing batch biofilm reactor[J]. Chin.J.Chem.Eng., 2015, 23(1): 303-308. DOI： 10.1016/j.cjche.2014.09.036.

摘要

Abstract

In this study

the performance of a sequencing batch biofilm reactor (SBBR) for removal of nitrogen and phosphorus from swine wastewater was evaluated. The replacement rate of wastewater was set at 12.5% throughout the experiment. The anaerobic and aerobic times were 3 h and 7 h

respectively

and the dissolved oxygen concentration of the aerobic phase was about 3.95 mg·L

-1

. The SBBR process demonstrated good performance in treating swine wastewater. The percentage removal of total chemical oxygen demand (COD)

ammonia nitrogen (NH

-N)

total nitrogen (TN)

and total phosphorus (TP) was 98.2%

95.7%

95.6%

and 96.2% at effluent concentrations of COD 85.6mg·L

-1

-N 35.22mg·L

-1

TN44.64 mg·L

-1

and TP 1.13mg·L

-1

respectively. Simultaneous nitrification and denitrification phenomenon was observed. Further improvement in removal efficiency of NH

-N and TN occurred at COD/TN ratio of 11:1

with effluent concentrations at NH

-N 18.5 mg·L

-1

and TN 34 mg·L

-1

while no such improvement in COD and TP removal was found. Microbial electron microscopy analysis showed that

the filler surfacewas coveredwith a thick biofilm

forming an anaerobic-aerobicmicroenvironment and facilitating the removal of nitrogen

phosphorus and organicmatters. A long-termexperiment (15 weeks) showed that stable removal efficiency for N and P could be achieved in the SBBR system.

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