Results 31 to 40 of about 2,997 (119)
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Arsenic presents a critical duality as both a hazardous environmental pollutant and an indispensable material for advanced semiconductor technologies. This study proposes an integrated reductive vacuum sublimation strategy, assisted by carbon and lead additives, to purify crude arsenic containing high oxygen (7.4%) and antimony (1326 mg kg−1).
Hongrui Xiang +6 more
wiley +1 more source
Gongye shui chuli, 2006 通过投加碳源的方法来强化水解—接触氧化组合工艺处理亚麻废水的能力，取得了较好的试验效果。在不加碳源时，CODCr的去除率仅为80.96%，出水CODCr高达795mg/L。但当投加微生物易吸收利用的碳源之后，CODCr的去除率均>90.1%，尤其是从两处向系统投加碳源时，CODCr去除率>93%。所补充的碳源不仅增强了微生物的活性和数量，同时也提高了微生物的协同代谢能力，最终提高了系统对CODCr的去除能力。
李清泉 +4 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Atomically dispersed iron–nitrogen–carbon (Fe‐N‐C) catalysts have emerged as promising alternatives for oxygen reduction reaction (ORR) owing to their highly atomic utilization. However, maintaining both Fe atomic dispersion and dense Fe‐Nx sites (typically below 2 wt%) in Fe‐N‐C catalysts is still a key challenge.
Lijuan Wang +6 more
wiley +1 more source
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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Functional Ecology, Volume 40, Issue 5, Page 1151-1164, May 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phenology is crucial for understanding plant growth and climate feedback. It affects canopy structure, surface albedo, and carbon and water fluxes. While the influence of environmental factors on phenology is well‐documented, the role of plant intrinsic factors ...
Yunpeng Luo +8 more
wiley +1 more source
Gongye shui chuli, 2016 以稻壳为反硝化碳源,研究了稻壳的营养组成、微观形貌、孔隙结构、在海水中的释碳速率以及作为反硝化碳源在海水中的脱氮效果。结果表明,稻壳中含有能被微生物利用的粗纤维、淀粉和粗蛋白等,总有机碳达到58%以上;稻壳含有大量亲水官能团,表面粗糙且拥有大量孔隙结构,非常利于微生物附着生长。以稻壳为反硝化碳源,海水中硝酸盐去除率可达59%,且具备较好的持续供碳能力,可满足其作为碳源被微生物持续利用的需求。
李华 +6 more
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Shuitu Baochi Xuebao, 2022 土地利用变化是区域碳排放变化的主要驱动力, 揭示土地利用变化对碳排放影响对于碳排放政策的制定具有指导意义。然而, 经济快速发展区域中土地利用变化对碳排放影响研究仍有限。以安徽省为对象, 基于2000—2020年的土地利用变化数据, 从碳源/汇角度评估了安徽省净碳排放, 分析了碳排放时空特点, 从碳足迹、生态承载力和生态赤字3个方面阐明了安徽省碳排放效应。结果表明: (1)从2000—2020年, 安徽省土地利用净碳排放表现为增加趋势, 年均增加503.92万t, 林地是碳排放的主要碳汇 ...
李彦旻, 沈育生, 王世航
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The utilization of carbonaceous anodes in electrochemical systems, particularly potassium‐ion batteries (PIBs), remains hindered by sluggish kinetics and modest capacities, which are caused by the intrinsic ion storage mechanisms and constrained interlayer spacings.
HaiSong Chen +7 more
wiley +1 more source
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
Gongye shui chuli, 2015 研究了将经乙醇型发酵后剩余污泥上清液作为反硝化外加碳源的可行性,并进行了上清液、甲醇和生活污水作为外加碳源的对比试验。结果表明,在相同的试验条件下,采用上清液和生活污水作为反硝化碳源时,系统反硝化过程中NO3--N的降解过程分为三个阶段,而以甲醇作为碳源时,NO3--N的降解过程为两个阶段;对比试验还发现,采用上清液代替甲醇作为反硝化系统的外加碳源,可在保持高反硝化速率的同时降低运行成本。
李桂淑, 李广, 李晶, 韩相奎
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