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乙烯基聚合物的好氧生物降解特性

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赵霞, 马建中, 马宏瑞, 高党鸽, 孙永会. 乙烯基聚合物的好氧生物降解特性[J]. 环境化学, 2018, 37(3): 576-583. doi: 10.7524/j.issn.0254-6108.2017072901
引用本文: 赵霞, 马建中, 马宏瑞, 高党鸽, 孙永会. 乙烯基聚合物的好氧生物降解特性[J]. 环境化学, 2018, 37(3): 576-583. doi: 10.7524/j.issn.0254-6108.2017072901
shu
ZHAO Xia, MA Jianzhong, MA Hongrui, GAO Dangge, SUN Yonghui. Biodegradation characteristics of vinyl polymer[J]. Environmental Chemistry, 2018, 37(3): 576-583. doi: 10.7524/j.issn.0254-6108.2017072901
Citation: ZHAO Xia, MA Jianzhong, MA Hongrui, GAO Dangge, SUN Yonghui. Biodegradation characteristics of vinyl polymer[J]. Environmental Chemistry, 2018, 37(3): 576-583. doi: 10.7524/j.issn.0254-6108.2017072901
shu

乙烯基聚合物的好氧生物降解特性

  • 1.

    陕西科技大学化学与化工学院, 西安, 710021;

  • 2.

    陕西科技大学轻工科学与工程学院, 西安, 710021;

  • 3.

    陕西科技大学环境科学与工程学院, 西安, 710021

  • 基金项目:

    国家自然科学基金（21607097）和陕西科技大学博士启动基金（2017BJ-24）资助.

Biodegradation characteristics of vinyl polymer

  • 1.

    College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China;

  • 2.

    College of Bioresources Chemistry and Materials Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China;

  • 3.

    College of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China

  • Fund Project: Supported by the National Natural Science Foundation of China (21607097) and Doctoral Fund of Shaanxi University of Science and Technology (2017BJ-24).

  • 摘要: 在好氧活性污泥系统生物处理乙烯基聚合物，采用COD30法，并结合TOC、生化呼吸曲线、扫描电子显微镜-能谱（SEM-EDS）、傅里叶红外光谱（FT-IR）及粒径分布研究了乙烯基聚合物的好氧生物降解特性.结果表明，经过30 d的微生物作用，初始COD浓度为100、300、500 mg·L-1的乙烯基聚合物的生物降解去除率分别为37.1%、33.4%、31.1%，乙烯基聚合物的生物降解去除率随初始浓度的增大而减小.降解动力学基本符合一级速率方程，速率常数受初始浓度影响较小.TOC、生化呼吸曲线、SEM-EDS、FT-IR及粒径变化结果进一步表明，乙烯基聚合物在好氧微生物的作用下发生了一定程度的生物降解.FT-IR结果表明乙烯基聚合物的主体结构未发生显著变化，主链上碳元素被矿化的较少.
    Abstract: Biodegradation characteristics of vinyl polymer were investigated under aerobic condition with the activated sludge system, and the biological degradation process of vinyl polymer was analyzed by COD30, TOC, respiration curve, scanning electron microscopy- energy dispersive X-ray spectroscopy (SEM-EDS), Fourier-transformed infrared spectroscopy (FT-IR), and particle size distribution. The results showed that after 30 days of incubation the COD removal ratios were 37.1%, 33.4% and 31.1% at initial vinyl polymer concentrations of 100, 300, and 500 mg·L-1, respectively, indicating that the biodegradation efficiency decreased with increasing initial substrate concentration. Kinetic studies showed that the first-order kinetic could describe the biodegradation process, and the first-order kinetic constant during aerobic biodegradation of vinyl polymer was slightly influenced by initial concentration. The biodegradability of vinyl polymer was further confirmed through TOC, respiration curve, SEM-EDS, FT-IR and particle size distribution analysis. The action of microorganisms in the activated sludge caused partial biodegradation of vinyl polymer. The changes in the FT-IR spectra indicated that the main chain scission of vinyl polymer was not disrupted significantly. The carbon on the main chain was rarely mineralized.
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  • 收稿日期:  2017-07-29
  • 刊出日期:  2018-03-15
赵霞, 马建中, 马宏瑞, 高党鸽, 孙永会. 乙烯基聚合物的好氧生物降解特性[J]. 环境化学, 2018, 37(3): 576-583. doi: 10.7524/j.issn.0254-6108.2017072901
引用本文: 赵霞, 马建中, 马宏瑞, 高党鸽, 孙永会. 乙烯基聚合物的好氧生物降解特性[J]. 环境化学, 2018, 37(3): 576-583. doi: 10.7524/j.issn.0254-6108.2017072901
shu
ZHAO Xia, MA Jianzhong, MA Hongrui, GAO Dangge, SUN Yonghui. Biodegradation characteristics of vinyl polymer[J]. Environmental Chemistry, 2018, 37(3): 576-583. doi: 10.7524/j.issn.0254-6108.2017072901
Citation: ZHAO Xia, MA Jianzhong, MA Hongrui, GAO Dangge, SUN Yonghui. Biodegradation characteristics of vinyl polymer[J]. Environmental Chemistry, 2018, 37(3): 576-583. doi: 10.7524/j.issn.0254-6108.2017072901
shu

乙烯基聚合物的好氧生物降解特性

  • 1.  陕西科技大学化学与化工学院, 西安, 710021;
  • 2.  陕西科技大学轻工科学与工程学院, 西安, 710021;
  • 3.  陕西科技大学环境科学与工程学院, 西安, 710021
  • 收稿日期:  2017-07-29
基金项目:

国家自然科学基金（21607097）和陕西科技大学博士启动基金（2017BJ-24）资助.

摘要: 在好氧活性污泥系统生物处理乙烯基聚合物，采用COD30法，并结合TOC、生化呼吸曲线、扫描电子显微镜-能谱（SEM-EDS）、傅里叶红外光谱（FT-IR）及粒径分布研究了乙烯基聚合物的好氧生物降解特性.结果表明，经过30 d的微生物作用，初始COD浓度为100、300、500 mg·L-1的乙烯基聚合物的生物降解去除率分别为37.1%、33.4%、31.1%，乙烯基聚合物的生物降解去除率随初始浓度的增大而减小.降解动力学基本符合一级速率方程，速率常数受初始浓度影响较小.TOC、生化呼吸曲线、SEM-EDS、FT-IR及粒径变化结果进一步表明，乙烯基聚合物在好氧微生物的作用下发生了一定程度的生物降解.FT-IR结果表明乙烯基聚合物的主体结构未发生显著变化，主链上碳元素被矿化的较少.

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