液相化学处理MBBR填料对城市污水厂尾水深度脱氮的影响

李春梅; 王海燕; 王有乐; 杭前宇; 程子芮; 刘凯

doi:10.3969/j.issn.1674-991X.2016.04.050

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液相化学处理MBBR填料对城市污水厂尾水深度脱氮的影响

doi: 10.3969/j.issn.1674-991X.2016.04.050

李春梅^1,2,3,
王海燕^2,3*, ,,
王有乐¹,
杭前宇^2,3,
程子芮^2,3,
刘凯^2,3,4

1.
兰州大学资源与环境学院
2.
环境基准与风险评估国家重点研究室,中国环境科学研究院
3.
中国环境科学研究院水污染控制技术研究中心
4.
河南理工大学材料科学与工程学院

详细信息

通讯作者:
王海燕 E-mail: wanghy@craes.org.cn

中图分类号: X703
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- 被引次数: 0
出版历程
- 收稿日期: 2016-03-11
- 修回日期: 2016-03-28
- 刊出日期: 2016-07-20

Influence of the Liquid-phase Chemical Method Modified MBBR Carriers on Advanced Nitrogen Removal of Urban Wastewater Treatment Plant Effluent

LI Chunmei^1,2,3,
WANG Haiyan^{2,3*
, ,},
WANG Youle¹,
HANG Qianyu^2,3,
CHENG Zirui^2,3,
LIU Kai^2,3,4

1.
College of Earth and Environmental Science, Lanzhou University
2.
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences
3.
Research Center for Water Pollution Control Technology, Chinese Research Academy of Environmental Sciences
4.
School of Materials Science and Engineering, Henan Polytechnic University

More Information

Corresponding author: WANG Haiyan E-mail: wanghy@craes.org.cn

摘要

摘要: 为进一步提高移动床生物膜反应器(MBBR)中普通聚乙烯(PE)填料对城市污水处理厂尾水中NO₃^--N的去除能力，采用液相化学处理法对PE进行改性，并对其反硝化深度脱氮效能进行研究。结果表明：改性聚乙烯(MPE)填料的静态接触角为75.5°，与PE相比降低了26.6%；扫描电镜显示，MPE与PE相比表面结构粗糙度增强；能谱及红外光谱分析表明，MPE表面氧元素含量及结构都发生了变化；MPE填料的MBBR反硝化能力与PE相比得到了明显提高，当进水NO₃^--N和TN浓度分别为(8.5±1.5)和(14.3±2.1) mg/L时，MPE填料的MBBR对NO₃^--N和TN的平均去除率分别为(75.2±7.0)%和(56.5±10.7)%，与PE相比分别提高了20.8%和58.1%。
- 液相化学改性方法 /
- 填料 /
- 移动床生物膜反应器(MBBR) /
- 反硝化
Abstract: To improve the nitrate removal ability of the polythene (PE) carriers in the moving bed biofilm reactors (MBBR), the liquid-phase chemical method was used to modify the PE carriers and the ability of advanced nitrogen removal denitrification of the modified PE (MPE) carriers also studied extensively. The results showed that the static contact angle of the MPE surface was 75.5° which decreased by 26.6% compared with that of PE. The MPE surface structure roughness was higher than that of PE through the scanning electron microscopy (SEM) observation, and the oxygen element content of MPE was increased and the surface structure was changed compared with PE using the energy dispersive spectra and IR spectra analysis. The denitrification ability of MPE MBBR was improved obviously compared with PE MBBR. When the influent NO₃^--N and TN of MPE MBBR were (8.5±1.5) mg/L and (14.3±2.1) mg/L, the NO₃^--N and TN removal were (75.2±7.0)% and (56.5±10.7)%, respectively, which were increased 20.8% and 58.1% compared with the PE MBBR accordingly.
- liquid-phase chemical modified method /
- carriers /
- MBBR /
- denitrification