Biological nitrogen removal from petrochemical wastewater using anoxic and oxic swim-bed reactor

SHI Lijun; XUN Yuxian; YANG Fenglin; ZHANG Xingwen; WANG Xujiang; KENJI Furukawa

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Biological nitrogen removal from petrochemical wastewater using anoxic and oxic swim-bed reactor

更新时间：2025-12-10

- Biological nitrogen removal from petrochemical wastewater using anoxic and oxic swim-bed reactor
- CIESC Journal Issue 1, Pages: 104-108(2006)
- 作者机构：
  
  1. 大连理工大学环境生命学院,辽宁,大连,116023
  2. 中国石化镇海炼油化工股份有限公司,浙江,宁波,315207
  3. 熊本大学市政工程与建筑系,熊本,日本
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 January 2006，
  
  Published：25 January 2006
- 稿件说明：
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SHI Lijun, XUN Yuxian, YANG Fenglin, et al. Biological nitrogen removal from petrochemical wastewater using anoxic and oxic swim-bed reactor[J]. CIESC Journal, 2006, (1): 104-108.
DOI：

SHI Lijun, XUN Yuxian, YANG Fenglin, et al. Biological nitrogen removal from petrochemical wastewater using anoxic and oxic swim-bed reactor[J]. CIESC Journal, 2006, (1): 104-108. DOI：

摘要

摇动床反应器是由日本NET株式会社研发的一种新型的附着生长污水处理工艺，本文将A/O法应用到摇动床反应器中，研究了A/O摇动床对石化废水的生物脱氮效果，考察了硝化液回流比和进水负荷对脱氮效果的影响.实验结果表明，A/O摇动床对石化废水具有较好的脱氮效果，在进水COD浓度、NH+4-N浓度、硝化液回流比和水力停留时间分别为400～600 mg8226;L-1、20～40 mg8226;L-1、2.5和26.1 h时，出水COD、NH+4-N和TN浓度小于40 mg8226;L-1、1.0 mg8226;L-1、7.0 mg8226;L-1，COD去除率、硝化率和反硝化率分别达到90%、95%和70%.

Abstract

The swim-bed technology is an innovative and highly efficient wastewater treatment process developed by Networking of Engineering and Textile Processing Limited Corporation

Japan.The technology uses a novel biofringe attachment material

which allows for attachment of large amount of biomass on a flexible matrix in a fixed position. By this approach

flexing of the matrix induced by wastewater flow creates a swimming motion

which enhances mass transfer and improves the activity of the biomass. In this paper biological nitrogen removal from petrochemical wastewater was investigated by using an anoxic-oxic swim-bed reactor. The study result showed that good biological nitrogen removal was achieved in the reactor. The influence of mixed liquid recycle ratio and influent load on biological nitrogen removal was discussed. When mixed liquid recycle ratio

influent COD concentration and NH+4-N concentration were 2.5

400～600 mg8226;L-1 and 20～40 mg8226;L-1 respectively

the concentration of COD

NH+4-N and TN in the outlet were lower than 40 mg8226;L-1

1.0 mg8226;L-1 and 7.0 mg8226;L-1 respectively

and COD removal efficiency

nitrification rate and denitrification rate were 90%

95% and 70% respectively.

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