Results 1 to 10 of about 2,476 (112)
Zhejiang 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
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Drivers of plant traits that allow survival in wetlands
Functional 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
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Gongye 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
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Gongye shui chuli, 2023 老龄生活垃圾填埋场渗滤液具有可生化性差、氨氮高以及C/N失调等特点，采用传统生化脱氮工艺需投加大量碳源，处理成本高且整体碳排放量大。为降低脱氮运行成本，实现减污降碳目标，以某老龄填埋场的渗滤液处理项目为例，采用精馏脱氮组合技术取代传统A/O+MBR工艺作为主要脱氮单元，同时通过沼气锅炉燃烧沼气产生蒸汽的方式为精馏脱氮单元提供热源，实现填埋气资源循环利用。基于IPCC排放因子法，以传统脱氮工艺碳排放量为基准线，对两种不同脱氮工艺碳排放特征进行分析。结果表明：A/O ...
陆飞鹏 +8 more
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Gongye 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
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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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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 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
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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
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