基于分子量分布的石化污水厂出水溶解性有机物性质研究

徐敏; 吴昌永; 周岳溪; 张胜; 高祯; 孙青亮

doi:10.3969/j.issn.1674-991X.2012.06.073

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基于分子量分布的石化污水厂出水溶解性有机物性质研究

doi: 10.3969/j.issn.1674-991X.2012.06.073

徐敏^1,2,
吴昌永²,
周岳溪^2*, ,,
张胜¹,
高祯^1,2,
孙青亮^2,3

1.
河北工程大学城市建设学院
2.
中国环境科学研究院水污染控制技术研究中心
3.
北京化工大学化学工程学院

详细信息

通讯作者:
周岳溪 E-mail: zhouyuexi@263.net

中图分类号: X703.1
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- 被引次数: 0
出版历程
- 收稿日期: 2012-04-11
- 修回日期: 2012-05-05
- 刊出日期: 2012-11-20

Properties of Soluble Organic Materials in Effluent of a Petrochemical Wastewater Treatment Plant based on Molecular Weight Distribution

1.
Institute of Urban Construction, Hebei University of Engineering
2.
Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences
3.
College of Chemical Engineering, Beijing University of Chemical Technology

More Information

Corresponding author: ZHOU Yue-xi E-mail: zhouyuexi@263.net

摘要

摘要: 采用超滤膜法对某石化综合污水厂二级出水进行了分级，结合TOC、UV₂₅₄和三维荧光光谱分析，对不同分子量区间中的溶解性有机物的所占比例、物质特性和成分进行了研究。结果表明：污水厂二级出水中溶解性有机物分子量小于1 kDa的有机物所占比例最高，其DOC占原水DOC的92.7%。分子量为5和10 kDa的两种组分芳香构造化程度较高。三维荧光光谱分析表明，分子量大于1 kDa的溶解性有机物主要含有蛋白质类和腐殖质类物质，其中色氨酸类芳香族蛋白质所占比例较高。
- 石化废水 /
- 分子量分布 /
- 溶解性有机物 /
- 超滤膜分离
Abstract: The biological effluent in a petrochemical wastewater treatment plant (WWTP) was classified by ultrafiltration membrane separation. The material characteristics, composition and amounts of dissolved organic fractions in different molecular weight ranges were investigated by measuring TOC, UV₂₅₄ and three-dimensional fluorescence spectrum. The results showed that organics on the fraction of molecular weight less than 1 kDa had the largest ratio in total organics of the biological effluent in the wastewater treatment plant, and the DOC of this fraction was about 92.7% of the total DOC. The aromatic structure was rich in 5 kDa and 10 kDa molecular weight components. Three-dimensional fluorescence spectrum analysis showed that dissolved organics on the fraction of molecular weight higher than 1 kDa mainly contained protein and humus materials, among which aromatic tryptophan was the dominant protein.
- petrochemical wastewater /
- molecular weight distribution /
- dissolved organic matters /
- ultrafiltration membrane separation