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首页> 外文期刊>Desalination and water treatment >Johannesburg-sulfur autotrophic denitrification system treatment of municipal wastewater with a low COD/TN ratio: Performance, material balance and bacterial community
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Johannesburg-sulfur autotrophic denitrification system treatment of municipal wastewater with a low COD/TN ratio: Performance, material balance and bacterial community

机译：约翰内斯堡-硫自养反硝化系统处理低COD / TN比的城市废水：性能，材料平衡和细菌群落

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摘要

The simultaneous nitrogen and phosphorus removal performance of the Johannesburg-Sulfur autotrophic denitrification (JHB-SAD) system was investigated in this study. The results showed that the JHB-SAD system achieved maximum removal efficiencies of 86.5, 96.0, 96.4 and 90.7% for COD, TN, NH4+-N and TP, respectively, with average effluent concentrations of 27.7, 1.26, 0.99 and 0.18 mg L-1, respectively. These results indicate that the nutrients could be almost completely removed by the JHB-SAD system if NH4+-N was sufficiently oxidized and that the JHB-SAD system could be a promising alternative to remove nutrients from municipal wastewater with a low COD/TN ratio. Meanwhile, bacterial communities in the JHB-SAD system were investigated using high-throughput sequencing technology. Taxonomic analysis found that 8 abundant phyla in the JHB-SAD system accounted for 86.8-91.1% of the total effective sequences, which were Proteobacteria (34.7-57.5%), Bacteroidetes (11.7-23.4%), Planctomycetes (8.71-20.1%), Chloroflexi (3.08-9.42%), Firmicutes (1.83-3.00%), Verrucomicrobia (0.41-1.81%), Gemmatimonadetes (0.44-1.27%) and Chlorobi (0.30-1.05%). In addition, redundancy analysis (RDA) showed that the phyla Bacteroidetes, Chlorobi, and Firmicutes were related to COD, NH4+-N concentration and COD removal, and the phyla Gemmatimonadetes and Chloroflexi were related to the SO(4)(2-)concentration in the SAD reactor due to autotrophic denitrification.
机译：本研究研究了约翰内斯堡-硫自养反硝化（JHB-SAD）系统的同时脱氮和除磷性能。结果表明，JHB-SAD系统对COD，TN，NH4 + -N和TP的最大去除效率分别为86.5、96.0、96.4和90.7％，平均废水浓度为27.7、1.26、0.99和0.18 mg L-。 1，分别。这些结果表明，如果NH4 + -N被充分氧化，则JHB-SAD系统几乎可以完全去除养分，并且JHB-SAD系统可以作为从COD / TN比低的城市废水中去除养分的有前途的替代方法。同时，使用高通量测序技术研究了JHB-SAD系统中的细菌群落。分类学分析发现，JHB-SAD系统中有8个丰富的门，占总有效序列的86.8-91.1％，分别是变形杆菌（34.7-57.5％），拟杆菌（11.7-23.4％），浮生菌（8.71-20.1％） ，绿屈菌（3.08-9.42％），硬毛菌属（1.83-3.00％），疣状微生物（0.41-1.81％），大孢子虫（0.44-1.27％）和绿萝（0.30-1.05％）。此外，冗余度分析（RDA）显示，拟杆菌，门尾藻和硬毛菌门与COD，NH4 + -N浓度和COD去除有关，而双子叶菌和绿叶菌门菌与SO（4）（2-）浓度有关。由于自养反硝化作用，在SAD反应器中的反应。

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  • 来源
    《Desalination and water treatment》 |2017年第1期|99-113|共15页
  • 作者

    Li Haibo; Zhou Beihai; Tian Zhiyong; Song Yonghui; Yu Huibin; Xiang Liancheng; Wang Siyu; Sun Chen;

  • 作者单位

    Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Dept Environm Engn, Xueyuan Rd 30, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Dept Environm Engn, Xueyuan Rd 30, Beijing 100083, Peoples R China;

    Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Dayangfang 8, Beijing 100012, Peoples R China;

    Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Dayangfang 8, Beijing 100012, Peoples R China;

    Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Dayangfang 8, Beijing 100012, Peoples R China;

    Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Dayangfang 8, Beijing 100012, Peoples R China;

    Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Dayangfang 8, Beijing 100012, Peoples R China;

    Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Dayangfang 8, Beijing 100012, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Wastewater with a low COD/TN ratio; Efficient nutrients removal; Johannesburg-Sulfur autotrophic denitrification system (JHB-SAD); High-throughput sequencing; Redundancy Analysis (RDA);

    机译：低COD / TN比的废水;有效的营养去除;约翰内斯堡-硫自养反硝化系统（JHB-SAD）;高通量测序;冗余分析（RDA）;

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