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市政污水中环形挥发性甲基硅氧烷浓度水平与去除效率

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吴婧娴, 栾晓新, 李清波, 宫福强, 陈轩, 张猛, 包姣灵. 市政污水中环形挥发性甲基硅氧烷浓度水平与去除效率[J]. 环境化学, 2016, 35(9): 1833-1841. doi: 10.7524/j.issn.0254-6108.2016.09.2015111704
引用本文: 吴婧娴, 栾晓新, 李清波, 宫福强, 陈轩, 张猛, 包姣灵. 市政污水中环形挥发性甲基硅氧烷浓度水平与去除效率[J]. 环境化学, 2016, 35(9): 1833-1841. doi: 10.7524/j.issn.0254-6108.2016.09.2015111704
shu
WU Jingxian, LUAN Xiaoxin, LI Qingbo, GONG Fuqiang, CHEN Xuan, ZHANG Meng, BAO Jiaoling. Occurrence and removal efficiency of cyclic volatile methylsiloxanes in municipal wastewater[J]. Environmental Chemistry, 2016, 35(9): 1833-1841. doi: 10.7524/j.issn.0254-6108.2016.09.2015111704
Citation: WU Jingxian, LUAN Xiaoxin, LI Qingbo, GONG Fuqiang, CHEN Xuan, ZHANG Meng, BAO Jiaoling. Occurrence and removal efficiency of cyclic volatile methylsiloxanes in municipal wastewater[J]. Environmental Chemistry, 2016, 35(9): 1833-1841. doi: 10.7524/j.issn.0254-6108.2016.09.2015111704
shu

市政污水中环形挥发性甲基硅氧烷浓度水平与去除效率

  • 1.

    大连海事大学环境科学与工程学院, 大连, 116026;

  • 2.

    大连市环境监测中心, 大连, 116000;

  • 3.

    中国交通运输部科学研究院, 北京, 100029

  • 基金项目:

    国家自然科学基金（41371448）和中央高校基本科研业务费专项（3132016326）资助.

Occurrence and removal efficiency of cyclic volatile methylsiloxanes in municipal wastewater

  • 1.

    College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China;

  • 2.

    Dalian Environmental Monitoring Center, Dalian, 116000, China;

  • 3.

    China Academy of Transportation Science, Beijing, 100029, China

  • Fund Project: Supported by the National Natural Science Foundation of China (41371448)and the Fundamental Research Funds for the Central Universities(3132016326).

  • 摘要: 本研究于2014年10月至11月间对大连市8处污水处理厂（W1-W8）入水、出水中环状挥发性甲基硅氧烷（Cyclic volatile methylsiloxanes，cVMSs）浓度进行了调查，采用超声辅助液液萃取及气相色谱-质谱联用检测方法测定了污水样品中六甲基环三硅氧烷（D3）、八甲基环四硅氧烷（D4）、十甲基环五硅氧烷（D5）、十二甲基环六硅氧烷（D6）的浓度水平.结果表明，入水D3、D4、D5、D6检出率分别为92%、88%、71%、75%；出水检出率分别为61%、96%、63%、58%.入水、出水ΣcVMSs平均浓度分别为1135±1600、433±437 ng·L-1，且入水、出水平均浓度均为D5最高，D3最低.入水D3与D4、D6，D4与D5浓度相关性达到5%的显著水平（R2=0.80、0.83、0.82），D3与D5及D5与D6浓度相关性达到1%的显著水平（R2=0.91、0.85）；出水D4与D6浓度相关性达到1%的显著水平（R2=0.93）；入水量与入水D3-D6浓度相关性未达到5%显著性水平.cVMSs去除效率范围为28%-100%，对D3-D6去除效率最高的二级处理工艺分别为BAF、BAF、A/O、SBR工艺，去除效率分别为87.3%、69.1%、99.5%、95.1%；最低的二级处理工艺分别为A/O、SBR、SBR、A/O工艺，去除效率分别为68.3%、30.1%、54.1%、72.0%.
    Abstract: Eight wastewater treatment plants(W1-W8) in Dalian were investigated to determine levels of cyclic volatile methylsiloxanes (cVMSs) in their influents and effluents from October to November in 2014. Ultrasound-assisted dispersive liquid-liquid extraction method coupled with GC-MS was emplayed for the analysis of D3,D4,D5,D6 in wastewater. The results showed that, in influent and effluent, detection frequencies of D3,D4,D5,D6 were 92%,88%,71%,75% and 61%,96%,63%,58%, respectively. The average concentrations of ∑cVMSs were 1135±1600、433±437 ng·L-1, respectively. D5 and D3 were the compounds found at the highest and lowest average concentration both in influent and effluent.In influent, there were statistically significant correlations of the concentrations of D3 with D4 and D6, and D4 with D5 at 95% confidence level(R2=0.80,0.83,0.82). Moreover, D3 with D5, and D5 with D6 at 99% confidence level (R2=0.91,0.85). In effluent, there were statistically significant correlations of the concentrations of D4 with D6 at 99% confidence level (R2=0.93). There is no correlation between water mass flow and cVMSs concentrations in influent. Removal efficiencies of cVMSs ranged from 28% to 100%.Secondary treatment process with the highest removal efficiency was BAF,BAF,A/O and SBR, and removal efficiencies were 87.3%,69.1%,99.6%,95.1%, respectively; The secondary treatment process with the lowest removal efficiency was A/O,SBR,SBR and A/O, and removal efficiencies were 68.3%,30.1%,54.1%,72.0%, respectively.
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  • 收稿日期:  2015-11-17
  • 刊出日期:  2016-09-15
吴婧娴, 栾晓新, 李清波, 宫福强, 陈轩, 张猛, 包姣灵. 市政污水中环形挥发性甲基硅氧烷浓度水平与去除效率[J]. 环境化学, 2016, 35(9): 1833-1841. doi: 10.7524/j.issn.0254-6108.2016.09.2015111704
引用本文: 吴婧娴, 栾晓新, 李清波, 宫福强, 陈轩, 张猛, 包姣灵. 市政污水中环形挥发性甲基硅氧烷浓度水平与去除效率[J]. 环境化学, 2016, 35(9): 1833-1841. doi: 10.7524/j.issn.0254-6108.2016.09.2015111704
shu
WU Jingxian, LUAN Xiaoxin, LI Qingbo, GONG Fuqiang, CHEN Xuan, ZHANG Meng, BAO Jiaoling. Occurrence and removal efficiency of cyclic volatile methylsiloxanes in municipal wastewater[J]. Environmental Chemistry, 2016, 35(9): 1833-1841. doi: 10.7524/j.issn.0254-6108.2016.09.2015111704
Citation: WU Jingxian, LUAN Xiaoxin, LI Qingbo, GONG Fuqiang, CHEN Xuan, ZHANG Meng, BAO Jiaoling. Occurrence and removal efficiency of cyclic volatile methylsiloxanes in municipal wastewater[J]. Environmental Chemistry, 2016, 35(9): 1833-1841. doi: 10.7524/j.issn.0254-6108.2016.09.2015111704
shu

市政污水中环形挥发性甲基硅氧烷浓度水平与去除效率

  • 1.  大连海事大学环境科学与工程学院, 大连, 116026;
  • 2.  大连市环境监测中心, 大连, 116000;
  • 3.  中国交通运输部科学研究院, 北京, 100029
  • 收稿日期:  2015-11-17
基金项目:

国家自然科学基金（41371448）和中央高校基本科研业务费专项（3132016326）资助.

摘要: 本研究于2014年10月至11月间对大连市8处污水处理厂（W1-W8）入水、出水中环状挥发性甲基硅氧烷（Cyclic volatile methylsiloxanes，cVMSs）浓度进行了调查，采用超声辅助液液萃取及气相色谱-质谱联用检测方法测定了污水样品中六甲基环三硅氧烷（D3）、八甲基环四硅氧烷（D4）、十甲基环五硅氧烷（D5）、十二甲基环六硅氧烷（D6）的浓度水平.结果表明，入水D3、D4、D5、D6检出率分别为92%、88%、71%、75%；出水检出率分别为61%、96%、63%、58%.入水、出水ΣcVMSs平均浓度分别为1135±1600、433±437 ng·L-1，且入水、出水平均浓度均为D5最高，D3最低.入水D3与D4、D6，D4与D5浓度相关性达到5%的显著水平（R2=0.80、0.83、0.82），D3与D5及D5与D6浓度相关性达到1%的显著水平（R2=0.91、0.85）；出水D4与D6浓度相关性达到1%的显著水平（R2=0.93）；入水量与入水D3-D6浓度相关性未达到5%显著性水平.cVMSs去除效率范围为28%-100%，对D3-D6去除效率最高的二级处理工艺分别为BAF、BAF、A/O、SBR工艺，去除效率分别为87.3%、69.1%、99.5%、95.1%；最低的二级处理工艺分别为A/O、SBR、SBR、A/O工艺，去除效率分别为68.3%、30.1%、54.1%、72.0%.

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