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首页> 外文会议>Annual Water Environment Federation technical exhibition and conference >Tidal Flow Constructed Wetland for Water Reuse: Performance Evaluation and Microbial Population
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Tidal Flow Constructed Wetland for Water Reuse: Performance Evaluation and Microbial Population

机译：潮汐人工湿地用于水再利用：性能评估和微生物种群

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Tidal flow constructed wetlands (TFCWs) have recently been studied as a sustainable technology to achieve enhanced carbon and nitrogen removal. For the widespread application of this relatively new technology it is required a comprehensive understanding of the chemical and biological processes within the system for further optimization. In this study we studied the COD, suspended solids, nitrogen removal in a pilot-scale TFCW, under various loading and operating conditions. The system effectively removed COD, TSS, below Class A water reuse standards. Nitrification was achieved in the system under different loading conditions and operational strategies with an average efficiency of 93± 8%. Total nitrogen removal of above 66% was observed in the system when operating with 4 cycles a day and different nitrogen loading. Microbial population analysis was performed using qPCR, and the results indicate that ammonia oxidizing, nitrate oxidizing bacteria, and comammox are all involved and contribute to the nitrogen transformation within the TFCWs.
机译：最近已经研究了潮汐人工湿地（TFCW），作为一种可持续的技术，可以提高碳和氮的去除率。对于这种相对较新的技术的广泛应用，需要全面了解系统中的化学和生物过程以进行进一步优化。在这项研究中，我们研究了在各种负载和运行条件下，中试规模的TFCW中的COD，悬浮固体，氮去除率。该系统有效地去除了低于A类水回用标准的COD，TSS。系统在不同的负载条件和操作策略下实现了硝化作用，平均效率为93±8％。当一天运行4个循环且氮负荷不同时，系统中的总氮去除率超过66％。使用qPCR进行了微生物种群分析，结果表明氨氧化，硝酸氧化细菌和comammox都参与其中，并有助于TFCWs中的氮转化。

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