Results 21 to 30 of about 51,553 (130)
Gongye shui chuli, 2019 人工湿地脱氮与其类型有着重要联系。不同类型人工湿地的构造、运行方式及复氧能力存在差异，因而脱氮效率有所不同。复合人工湿地的脱氮效率明显优于单一湿地系统。为了克服湿地脱氮中存在的不足，近年来涌现一批新型人工湿地，通过人工增氧、固定化微生物、电化学等新技术优化湿地构造、强化湿地脱氮过程。在总结不同类型人工湿地脱氮特性的基础上，重点分析各类型人工湿地脱氮效率的差异，并对今后的相关研究方向进行展望。
丁怡 +7 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
wiley +1 more source
生态环境与保护针对全球水环境质量下降与水处理成本过高问题,寻找高效与节能的污水处理技术成为研究热点。菌藻颗粒污泥(ABGS)工艺通过构建了细菌与微藻的共生体系。ABGS具有节能降耗、回收资源,被认为是下一代污水处理技术的重要方向。但低温环境会明显抑制ABGS工艺的脱氮除磷效果,所以ABGS在寒冷地区和季节难以稳定运行的主要瓶颈。本文系统介绍了ABGS的脱氮除磷原理,分析了温度、光照、进水基质和pH等关键因素对ABGS处理效果的影响。重点探讨了低温对ABGS工艺在微生物代谢活性、菌藻协同作用、颗粒结构稳定性 ...
Si-Ya Wang +4 more
semanticscholar +1 more source
A Review on Cu‐Based Catalysts for Dehydrogenation of Chemical Hydrides
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Hydrogen (H2) plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable, clean, and pollution‐free. Nevertheless, the secure and effective production‐storage‐transportation of H2 presents critical challenges.
Yixing Luo +6 more
wiley +1 more source
生态环境与保护随着水污染问题的日益严重和生态环境保护的迫切需要,污水中硝态氮去除效率的提 升迫在眉睫且已成为氮去除的主要瓶颈。本研究通过添加有机电子供体和无机电子 供体分别促发自养反硝化和异养反硝化过程对比两种类型电子供体对硝态氮去除效 率的影响。结果表明,有机电子供体通过显著提升反硝化全流程功能基因(如narG、 nirK、nosZ)丰度,实现了更为高效的反硝化速率和硝态氮去除效率(50%以上),其持 续电子供给能力及碳源特性驱动了有机碳降解相关微生物群落的演替。无机电子供 体虽可激活反硝化前期基因表达 ...
Jing-Jing Wang
semanticscholar +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Formic acid (FA) is considered to be a safe and convenient hydrogen source; however, achieving controlled and efficient FA dehydrogenation under mild conditions using stable solid catalysts remains a significant challenge. Pd‐based catalysts have been extensively studied due to their superior catalytic activity to other metal catalysts.
Shuai Wei +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu +8 more
wiley +1 more source
, 2013 微生物的硝化与反硝化作用是人工湿地脱氮的主要途径,如何调控与优化湿地沿程溶解氧浓度和污水碳氮比,对于提高人工湿地脱氮效果至关重要。为此,在人工湿地前端埋设曝气管、后端增设碳源投加管,构建了一种人工湿地强化脱氮系统,并选择曝气速率、曝气运行/停止时间比、碳源投加量、进水方式进行正交试验,开展了人工湿地碳氧联合调控脱氮研究。结果表明,各因素的影响大小依次为:曝气运行/停止时间比>曝气速率>碳源投加量>进水方式;最优运行条件为:曝气速率为2.5 L·h-1,曝气运行/停止时间比为8 h/16 h ...
王启烁 +4 more
core
Gongye shui chuli, 2006 综述了膜生物反应器的同步脱氮除磷工艺，介绍了影响膜生物反应器同步脱氮除磷效率的几个因素，探讨了同步脱氮除磷工艺中同时脱氮除磷的机理，并在此基础上提出了研究方向和应用前景。
刘爱萍 +3 more
doaj +2 more sources
Nitrogen Anchoring Effect Triggering Improved Reversible Hydrogen Storage of Mg(BH4)2
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT This research uncovered the influence of nitrogen‐doped MXene Ti3CN on the reversible hydrogen storage properties of Mg(BH4)2. The Mg(BH4)2‐20Ti3CN composite began releasing hydrogen at a temperature of 80°C. In addition, the composite discharged over 8.8 wt% hydrogen at a comparatively lower temperature of 270°C, whereas the pure Mg(BH4)2 ...
Zhen‐Xuan Ma +7 more
wiley +1 more source