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Comparison of performance, microbial kinetics and microbial community between intelligent and conventional aeration-controlled Anoxic/Oxic systems
International Journal of Environmental Science and Technology ( IF 3.1 ) Pub Date : 2019-11-16 , DOI: 10.1007/s13762-019-02590-2
Z. B. Hu , Y. K. Zheng , M. Y. Xu , X. S. Chai , S. S. Zhang

This work reports a comparison study between an intelligent aeration-controlled Anoxic/Oxic system and a conventional continuing aeration Anoxic/Oxic system for the removal of major containment, which includes the performance of major containments treatment, microbial kinetics and microbial communities by high-throughput sequencing tool. The results showed that at the end of low dissolved oxygen start-up period, there was few differences on the performance between the intelligent aeration-controlled Anoxic/Oxic system, with a 60% aeration saving, and conventional continuing aeration Anoxic/Oxic system. Moreover, the differences of activated sludge microbial community were significant. The kinetics study shows that the microbial kinetics for the intelligent aeration-controlled Anoxic/Oxic system was faster than for the comparison system, especially the yield coefficient for autotrophic biomass was much higher. The high-throughput sequencing tool also have provided a reasonable comparison of microbial community in aeration tank and indicated that the low dissolved oxygen demand species were more abundant. Meanwhile, the functional relative abundance had little statistical differences. However, the more abundance of low dissolved oxygen demand species gradually represented function of the less abundance species in the end of the start-up process. This study can provide a helpful information in the intelligent aeration-controlled Anoxic/Oxic system optimization to further removal the specific contaminates in the domestic wastewater treatment.

中文翻译:

智能和常规曝气控制的缺氧/有氧系统之间的性能,微生物动力学和微生物群落的比较

这项工作报告了智能曝气控制的缺氧/氧化系统与常规连续曝气的缺氧/氧化系统之间用于去除主要污染物的比较研究,包括通过高通量进行主要污染物处理,微生物动力学和微生物群落的性能排序工具。结果表明,在低溶解氧启动期结束时,智能曝气控制的缺氧/氧气系统(节省60%的曝气)与常规连续曝气的缺氧/氧气系统之间的性能差异很小。此外,活性污泥微生物群落的差异是显着的。动力学研究表明,智能曝气控制的缺氧/有氧系统的微生物动力学比比较系统要快,特别是自养生物质的产量系数要高得多。高通量测序工具还提供了曝气池中微生物群落的合理比较,并表明低溶解氧需求物种更为丰富。同时,功能相对丰度几乎没有统计学差异。但是,在启动过程结束时,更多的低溶解氧需求量物种逐渐代表了数量较少的物种。该研究可为智能控制曝气/缺氧系统的智能化提供有用的信息,以进一步去除生活污水处理中的特定污染物。高通量测序工具还提供了曝气池中微生物群落的合理比较,并表明低溶解氧需求物种更为丰富。同时,功能相对丰度几乎没有统计学差异。但是,在启动过程结束时,更多的低溶解氧需求量物种逐渐代表了数量较少的物种。该研究可为智能控制曝气/缺氧系统的智能化提供有用的信息,以进一步去除生活污水处理中的特定污染物。高通量测序工具还提供了曝气池中微生物群落的合理比较,并表明低溶解氧需求物种更为丰富。同时,功能相对丰度几乎没有统计学差异。但是,在启动过程结束时,更多的低溶解氧需求量物种逐渐代表了数量较少的物种。该研究可为智能控制曝气/缺氧系统的智能化提供有用的信息,以进一步去除生活污水处理中的特定污染物。在启动过程结束时,溶解氧需求量较低的物种越丰富,逐渐代表功能较弱的物种的功能。该研究可为智能控制曝气/缺氧系统的智能化提供有用的信息,以进一步去除生活污水处理中的特定污染物。在启动过程结束时,溶解氧需求量较低的物种越丰富,逐渐代表功能较弱的物种的功能。该研究可为智能控制曝气/缺氧系统的智能化提供有用的信息,以进一步去除生活污水处理中的特定污染物。
更新日期:2019-11-16
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