OJNS  >> Vol. 4 No. 2 (May 2016)

    MBR处理电镀废水出水中DOM的特征分析
    Characterization of Dissolved Organic Matter in the Effluent of Electroplating Wastewater Treatment by MBR

  • 全文下载: PDF(380KB) HTML   XML   PP.117-122   DOI: 10.12677/OJNS.2016.42014  
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作者:  

屈凡琦,黄丽坤,张乃元,范佳明,郭淑杰:哈尔滨商业大学,黑龙江 哈尔滨

关键词:
电镀废水膜生物反应器(MBR)溶解性有机物紫外–可见光谱分析重金属冲击Electroplating Wastewater Membrane Bioreactor (MBR) Dissolved Organic Matter (DOM) Ultraviolet-Visible Spectroscopy Analysis Heavy Metal Shock

摘要:

利用XAD-8/XAD-4树脂对膜生物反应器(MBR)处理电镀废水出水中的溶解性有机物(DOM)进行了组分分离,将DOM分为过渡亲水性有机酸(TPI-A)、过渡亲水性中性有机物(TPI-N)、疏水性有机酸(HPO-A)、疏水性中性有机物(HPO-N)和亲水性有机物(HPI)五个组分,并对重金属冲击前后各组分的溶解性有机碳(DOC)、紫外–可见光谱和多糖的变化情况进行对比分析.结果表明,HPI、HPO-A和HPO-N是电镀废水中主要的有机成分,共占总DOC的87.5%,MBR的生物降解作用更适合去除疏水性物质含量较高的有机废水.电镀废水中的芳香性有机物主要来自HPO-N,多糖主要分布在HPO-A、HPO-N和TPI-N中。MBR对中性有机物的去除效果较好,重金属冲击前TPI-N和HPO-N中多糖的去除率分别达到73.3%和99.1%。

Using XAD-8/XAD-4 resins, dissolved organic matter (DOM) in the effluent of membrane bioreactor (MBR) used for electroplating wastewater treatment was fractionated into five fractions: transphilic acid (TPI-A), transphilic neutral (TPI-N), hydrophobic acid (HPO-A), hydrophobic neutral (HPO-N), and hydrophilic fraction (HPI). Thereafter, the changes of dissolved organic carbon (DOC), ultraviolet visible spectroscopy and polysaccharide of each fraction before and after metal impact were analyzed. HPI, HPO-A and HPO-N are the major organic constituents in electroplating wastewater, accounted for 87.5% of total DOC, biodegradation of MBR is more suitable for the removal of organic wastewater with high content of hydrophobic substances. Aromatic compounds in electroplating wastewater mainly from HPO-N, polysaccharide mainly distributed in HPO-A, HPO-N and TPI-N, TPI-N and HPO-N. The effect of MBR on the removal of neutral compounds is better. Before the impact of heavy metals, the removal rates of TPI-N and HPO-N were 73.3% and 99.1%, respectively.

文章引用:
屈凡琦, 黄丽坤, 张乃元, 范佳明, 郭淑杰. MBR处理电镀废水出水中DOM的特征分析[J]. 自然科学, 2016, 4(2): 117-122. http://dx.doi.org/10.12677/OJNS.2016.42014

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