Results 1 to 10 of about 2,228 (107)

Drivers of plant traits that allow survival in wetlands

open access: yesFunctional Ecology, Volume 34, Issue 5, Page 956-967, May 2020., 2020
A free Plain Language Summary can be found within the Supporting Information of this article. Abstract Plants have developed a suite of traits to survive the anaerobic and anoxic soil conditions in wetlands. Previous studies on wetland plant adaptive traits have focused mainly on physiological aspects under experimental conditions, or compared the ...
Yingji Pan   +8 more
wiley   +1 more source

Electrochemical characteristics of microbial fuel cells treating nitrate and sulfide simultaneously(同步脱氮除硫燃料电池的电化学特性研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2022
同步脱氮除硫工艺以硝态氮作为电子受体,硫化物作为电子供体,通过以废治废,去除氮硫污染物。本文构建了双室型微生物燃料电池(microbial fuel cell,MFC),将同步脱氮除硫工艺与MFC相结合,在处理废水的同时生产电能。与化学对照组相比,该同步脱氮除硫MFC具有高基质去除性能和产电性能。当进水硝态氮和硫化物的浓度分别为95.54和540 mg·L-1,反应时间为20 h时,硝态氮和硫化物的去除率分别高达96.50%和99.64%;最大电流密度达457.20 mA·m-2,稳定电流密度为30 ...
CAIJing(蔡靖)   +5 more
doaj   +1 more source

低碳污水微生物氮转化工艺研究进展

open access: yesGongye shui chuli, 2022
由于我国污水处理厂进水碳源不足,传统生物脱氮技术需补充碳源以满足脱氮要求,这额外增加了碳足迹和碳排放。碳中和背景下,低碳生物脱氮技术的发展为脱氮技术革新提供了基础。基于此,首先系统介绍了传统生物脱氮技术的原理及对应的功能微生物,分析了传统技术存在的问题;针对传统生物脱氮技术,提出添加新型碳源、调整工艺运行和挖掘内碳源等途径来提升脱氮效率。概述了几种低碳脱氮技术(短程硝化反硝化、同步硝化反硝化、厌氧氨氧化、微生物电化学技术)的工艺特点和创新原理,并与传统工艺进行了比对 ...
李瑞祥, 王鑫, 李田
doaj  

Are ecophysiological adaptive traits decoupled from leaf economics traits in wetlands?

open access: yesFunctional 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
wiley   +1 more source

沸石联合生物工艺在污水脱氮领域的最新研究进展

open access: yesGongye shui chuli, 2022
沸石作为良好的吸附材料,被广泛用于污水脱氮处理领域。最新研究表明,沸石联合微生物工艺具有低能耗和高效脱氮的特点。在沸石联合微生物处理工艺中,沸石作为氨氮存储介质和微生物载体可增加系统脱氮功能菌生物量,提升脱氮效率;沸石生物可再生性与疏松多孔的结构特点易于实现氨氧化菌的富集和对亚硝态氮氧化菌的抑制,从而实现反应器内的短程硝化;将沸石运用至厌氧氨氧化工艺之中,可促进厌氧氨氧化反应的稳定运行与其功能细菌的富集。基于此,总结了沸石在硝化、短程硝化、厌氧氨氧化以及反硝化过程中的作用及其主要作用机理 ...
张天意, 康鹏飞, 万俊锋
doaj  

生物电化学系统废水脱氮机理及影响研究进展

open access: yesGongye shui chuli, 2022
生物电化学系统(BES)可增强体系的自养反硝化,刺激脱氮酶活性,对含氮废水的处理具有潜在优势,近年来已成为废水脱氮领域的研究热点。本研究基于氮素在废水中的循环,综合国内外相关文献,总结了BES的多途径协同脱氮机理及不同形式BES对含氮废水的处理效果,提出了将氮素离子的迁移与生物脱氮相结合的多种协同脱氮途径,分析了电极材料、运行参数及电流强度对BES脱氮性能的影响,并对BES在低C/N废水脱氮中的应用进行了分析。相比于传统生物脱氮,BES脱氮的优势主要体现在以下几个方面:减少了碳源投加量 ...
陈嘉瑾, 徐汉, 张志浩, 杨小丽
doaj  

城镇污水生物脱氮除磷工艺存在问题的调控措施

open access: yesGongye shui chuli, 2020
生物脱氮除磷工艺在城镇污水处理过程中发挥了重要作用,随着排放标准的提升,现有常用工艺出水无法满足排放标准的要求。分析了生物脱氮除磷的机理,比较了不同处理工艺,解析了城镇污水进水碳源不足、不同菌属微生物相互竞争、生物活性影响、污泥膨胀和生物泡沫等生物脱氮除磷工艺存在的问题,提出调整工艺运行条件、改造工艺结构、补充碳源、投加填料、添加化学除磷药剂和使用生物选择器等生物脱氮除磷调控措施。
蒙小俊, 王秋利, 龚晓松
doaj  

Superior Abrasibility of YSZ(ESP)/BN@ZrO2‐Polyester Composite Sealing Coating Reinforcing With Hybrid Micron/Nanometer Multiscaled Pore Structure

open access: yesRare 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
wiley   +1 more source

Recent Advances in Piezocatalysis and Piezo‐Photocatalysis in Energy and Environment: Materials, Design, and Applications

open access: yesRare 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

A Review on Cu‐Based Catalysts for Dehydrogenation of Chemical Hydrides

open access: yesRare 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

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