| 2-丁烯醛生产废水中溶解性有机物的分级解析 |
| 摘要点击 1755 全文点击 867 投稿时间：2016-02-28 修订日期：2016-05-21 |
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| 中文关键词 2-丁烯醛生产废水 超滤膜法 气相色谱-质谱联用仪 (GC-MS) 紫外吸收光谱 (UV) 红外光谱(FT-IR) |
| 英文关键词 2-buternal manufacture wastewater ultra-filtration technology gas chromatography-mass spectrometry(GC-MS) ultraviolet spectrum(UV) fourier transform infrared spectrometry(FT-IR) |
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| 中文摘要 |
| 采用超滤膜法将2-丁烯醛生产废水中的有机物分为相对分子质量不同的7个级分，并应用溶解性有机碳（dissolved organic carbon，DOC）、紫外吸收光谱（ultraviolet spectrum，UV）、傅里叶变换红外光谱（fourier transform infrared spectrometer，FT-IR）和气相色谱/质谱联用仪（gas chromatography with mass spectrometry，GC-MS）技术对不同相对分子质量区间的有机物所占比例及物质结构进行了研究. 结果表明，废水中相对分子质量< 1×103的有机物所占比例最高，达到88.57%；采用GC-MS对废水中相对分子质量< 1×103的级分进行分析，定性出27种化合物，包含醛、酮、酯、醇、酚、酸、烷烃类及其他苯系物等，其峰面积占有机物峰面积总和的比例分别为6.9%、5.3%、35.4%、13.2%、4.6%、0.4%、1.7%、16.8%，总和为84%. UV和FT-IR分析结果均显示不同相对分子质量区间的光谱吸收特征没有明显差别，级分中存在含有不饱和双键、羟基、羰基化合物及芳香族化合物，与GC-MS检测结果相吻合. 研究结果为废水处理工艺的开发与优化提供了重要的指导作用. |
| 英文摘要 |
| The dissolved organic matters from 2-buternal manufacture wastewater were fractionated into seven fractions by ultra-filtration membrane separation. The amounts and structural compositions of organic compounds in different molecular weight ranges were characterized by dissolved organic carbon (DOC), ultraviolet spectrum (UV), Fourier transform infrared spectrometer (FT-IR) and gas chromatography with mass spectrometry (GC-MS). The results showed that the fraction of molecular weight less than 1×103 had the largest proportion in the wastewater, and occupied 88.57% of the DOC. There were 27 kinds of compounds qualitatively analyzed by GC-MS, mainly including aldehyde, ketone, ester, alcohol, phenol, organic acid, alkane and other heterocyclic compounds. The proportions of compounds of peak area accounting for total peak area of organic matters were 6.9%, 5.3%, 35.4%, 13.2%, 4.6%, 0.4%, 1.7% and 16.8% respectively, adding up to 84%. The analysis of UV and FT-IR demonstrated that the spectral absorptive characteristics of organic compounds from different fractions were not significantly different. The fractions contained carbonyls, hydroxys and aromatic compounds, which was consistent with the qualitative analysis of GC-MS. The results of this study provide an important guidance for the development and optimization of 2-buternal manufacture wastewater treatment process. |
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