典型文献
Initial carbon release characteristics,mechanisms and denitrification performance of a novel slow release carbon source
文献摘要:
External carbon source addition is one of the effective methods for the treatment of wastew-ater with low carbon to nitrogen ratio(C/N).Compared with fast-release liquid carbon sources,slow-release solid carbon sources are more suitable for the denitrification pro-cess.A novel slow-release solid carbon source(corncob-polyvinyl alcohol sodium alginate-poly-caprolactone,i.e.CPSP)was prepared using corn cob(CC)and poly-caprolactone with polyvinyl alcohol sodium alginate as hybrid scaffold.The physical properties and carbon release characteristics of CPSP and three other carbon sources were compared.CPSP had stable framework and good carbon release performance,which followed the second order release equation.The formic acid,acetic acid,propionic acid and butyric acid released from CPSP accounted for 8.27%±1.66%,56.48%±3.71%,18.46%±2.69%and 16.79%±3.02%of the total released acids respectively.The start-up period of CPSP was shorter than that of the other carbon sources in denitrification experiment,and no COD pollution was observed in the start-up phase(25-72 h)and stable phase(73-240 hr).The composition and structure of the dissolved organic compounds released by CPSP and other carbon sources were ana-lyzed by UV-Vis absorption spectroscopy and three-dimensional fluorescence spectroscopy,which indicated that CPSP was more suitable for denitrification than the other studied car-bon sources.
文献关键词:
中图分类号:
作者姓名:
Congyu Li;Haiyan Wang;Guokai Yan;Weiyang Dong;Zhaosheng Chu;Huan Wang;Yang Chang;Yu Ling;Yanjie Zhang
作者机构:
State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;Research Center of Environmental Pollution Control Technology,Chinese Research Academy of Environmental Science,Beijing 100012,China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration,Chinese Research Academy of Environmental Sciences,Beijing 100012,China
文献出处:
引用格式:
[1]Congyu Li;Haiyan Wang;Guokai Yan;Weiyang Dong;Zhaosheng Chu;Huan Wang;Yang Chang;Yu Ling;Yanjie Zhang-.Initial carbon release characteristics,mechanisms and denitrification performance of a novel slow release carbon source)[J].环境科学学报(英文版),2022(08):32-45
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AB值:
0.464873
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