https://scholars.lib.ntu.edu.tw/handle/123456789/598148
標題: | The interaction between Pseudomonas C27 and Thiobacillus denitrificans in the integrated autotrophic and heterotrophic denitrification process | 作者: | Zhang R.-C Chen C Xu X.-J Lee D.-J Ren N.-Q. DUU-JONG LEE |
關鍵字: | Integrated autotrophic and heterotrophic denitrification;Microbial interaction;Pseudomonas;Sulfide;Thiobacillus;Denitrification;Metabolism;Nitrogen;Nitrogen removal;Organic carbon;Sulfur;Sulfur compounds;Autotrophic denitrification;Denitrification process;Heterotrophic denitrification;Microbial interactions;Removal rate;Sulfide concentration;Sulphide;Sulphide removals;Bacteria;acetic acid;carbon;nitrate;nitrogen;sulfide;sulfur;nitric acid derivative;bacterium;concentration (composition);denitrification;microbiology;wastewater treatment;Article;bacterial growth;bacterial metabolism;coculture;concentration (parameter);controlled study;degradation;inoculation;integrated autotrophic and heterotrophic denitrification;microbe-microbe interaction;microbial interaction;nonhuman;Pseudomonas C27;Thiobacillus denitrificans;waste component removal;bioreactor;Bioreactors;Nitrates | 公開日期: | 2022 | 卷: | 811 | 來源出版物: | Science of the Total Environment | 摘要: | Compared to autotrophic and heterotrophic denitrification process, the integrated autotrophic and heterotrophic denitrification (IAHD) shows wider foreground of applications in the actual wastewaters with organic carbon, nitrogen and sulfur co-existing. The efficient co-removal of sulfur, nitrogen, and carbon in the IAHD system is guaranteed by the interaction between heterotrophic and autotrophic denitrificans. In order to further explore the interaction between functional bacteria, Pseudomonas C27 and Thiobacillus denitrifcans were selected as typical heterotrophic and autotrophic bacteria, and their characteristics metabolic responses to different sulfide concentrations were studied. Pseudomonas C27 had higher metabolic activity than T. denitrificans in the IAHD medium with sulfide concentration of 3.12–15.62 mmol/L. Moreover, the fastest sulfide removal rate (0.35 mmol/L·h) was achieved with a single inoculation of Pseudomonas C27. Meanwhile, in mixed inoculant conditions, the interaction between Pseudomonas C27 and T. denitrificans (P:T = 3:1, P:T = 1:1 and P:T = 1:3) yielded the highest sulfide removal efficiency (more than 85%) when sulfide concentration was 6.25–12.5 mmol/L. Additionally, the sulfide removal rate increased with the inoculation proportion of Pseudomonas C27. Thus, this apparent interaction provided a theoretical basis for further understanding and guidance on the efficient operation of IAHD system. ? 2021 Elsevier B.V. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121748515&doi=10.1016%2fj.scitotenv.2021.152360&partnerID=40&md5=d70d114a58bd044dca28394fc97dd587 https://scholars.lib.ntu.edu.tw/handle/123456789/598148 |
ISSN: | 00489697 | DOI: | 10.1016/j.scitotenv.2021.152360 |
顯示於: | 化學工程學系 |
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