Results 11 to 20 of about 51,553 (130)
工程建设, 2020 传统工艺在处理氮磷含量较高的生活污水时效果往往不理想；因此，研究人员在解决生活污水处理超标排放的问题时，结合氮磷在生活污水中主要以氨氮、硝态氮、有机氮等形式存在的特点，研发出多级AO-MBR工艺。文中将对生活污水处理工艺现状进行分析，阐述脱氮除磷的基本原理，探究多级AO-MBR工艺在生活污水脱氮除磷中的应用。
Yue-Ling Chen, Lin Yang
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Are ecophysiological adaptive traits decoupled from leaf economics traits in wetlands?
Functional Ecology, Volume 33, Issue 7, Page 1202-1210, July 2019., 2019 Plain Language Summary Abstract Wetland plants have developed a suite of traits, such as aerenchyma, radial oxygen loss and leaf gas films, to adapt to the wetland environment characterised by, for example, a low redox potential and a lack of electron acceptors.
Yingji Pan +3 more
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生态环境与保护低温下脱氮效率低是水产养殖尾水处理难题。本研究在10℃低温下,将耐冷型硝化菌BioPower101与反硝化菌Bacillus cereus NWR1组合用于自然水体原水处理并优化关键工艺参数。结果显示,BioPower101在10℃低温下有显著氨氮降解潜力,对原水低浓度氨氮(10 mg/L)去除率达97.3%,最佳接种量为0.1%,且原水中土著微生物低温无脱氨氮能力；BioPower101与NWR1协同作用并补加碳源后,TN去除率达46.44%,确定mC/mN=20为最佳碳氮比。
Jie Feng, Feng Wei, Na-Na Li, Jie Sun
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生态环境与保护市政污水处理厂由于进水浓度太低,往往会额外投加碳源进行脱氮处理,不符合节能减排的要求。基于传统生物脱氮技术的不足,文章提出了短程硝化反硝化、厌氧氨氧化和同步硝化反硝化等技术,这些脱氮新技术可以节省能耗和碳源。基于此,本文对生物脱氮新技术的研究现状、问题与发展方向进行了探讨。
Yu Zhang, Hai-Bo Deng, Ya Li, He Sun
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Gongye shui chuli, 2014 曝气生物滤池（BAF）有着良好的脱氮效果，近年来曝气生物滤池与新型脱氮理论的结合成为研究的热点。详细阐述了传统脱氮理论与新型脱氮理论在曝气生物滤池中的应用，并介绍了其影响因素。对曝气生物滤池的脱氮前景进行了展望，对存在的问题进行了初步分析。指出将新型脱氮理论运用于曝气生物滤池，对于开发低耗高效的脱氮工艺是个非常好的思路，具有广阔的发展前景。
王靖雯 +3 more
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Gongye shui chuli, 2015 硝化-反硝化过程是人工湿地脱氮的主要途径。如何同时保障硝化-反硝化这一重要脱氮机制的畅通是提高湿地脱氮效率的关键。对溶解氧和碳源在人工湿地脱氮中的作用及其主要来源进行了描述,重点论述并分析了溶解氧和碳源在人工湿地脱氮中的耦合关系,合理调整进水中的碳氮比被认为是提高湿地脱氮效率的关键。
丁怡, 王玮, 王宇晖, 宋新山
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Gongye shui chuli, 2023 作为低碳节能的生物脱氮工艺，厌氧氨氧化引进国内已有十余年的历史，已有多家食品加工龙头企业从国外引进了十多套厌氧氨氧化脱氮系统。这些系统大部分运行良好，但也有少数脱氮效果不稳定，未能达到预期效果。以典型食品加工废水厌氧氨氧化处理系统为例，分析确定了该脱氮系统失效原因在于进水氨氮低于系统设计要求，难以形成稳定的亚硝氮积累，破坏了一体式部分亚硝化-厌氧氨氧化（PN-A）系统的稳定高效脱氮，导致系统出水总氮去除率下降，同时出水硝氮明显升高。为解决此难题，采用高效亚硝化反应器促进食品加工废水快速稳定亚硝化 ...
汪敏泉 +3 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The development of structurally stable anodes with high capacities and long cycle lives is essential for the development of potassium–ion batteries. Conversion‐type anodes have attracted considerable attention in potassium–ion batteries (PIBs) due to their high theoretical capacities.
Jeong Ho Na +7 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Composite materials hold significant potential for abrasive sealing, yet composite materials used for abrasive sealing fall short in service durability under extreme environments. Here, a controllable strategy for adjusting pore structure is proposed, aiming to design a YSZ(ESP)/BN@ZrO2‐polyester coating with hybrid micron/nanometer ...
Shuang Yu +8 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo +6 more
wiley +1 more source