Results 31 to 40 of about 1,596,919 (135)
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Most high‐entropy alloys (HEAs) tailored for contaminant degradation suffer from complex fabrication processes and high‐cost alloy design. Furthermore, low‐cost active elements such as Fe and Mg cannot be readily alloyed into HEAs via conventional routes.
Jiajia Si +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Nickel‐based materials are highly remarkable as promising transition metal catalysts for the electrochemical hydrogen evolution reaction (HER) in alkaline electrolytes. However, their electrochemical performance is limited by an unfavorable d‐band energy (Ed) level. Herein, we showcase an effective lattice‐strain strategy to modulate the Ed of
Shengjue Deng +10 more
wiley +1 more source
Gongye shui chuli, 2015 以某机床厂污水处理工程为实例,介绍机床厂各类生产污水预处理及综合污水处理的工艺、工艺参数及效果。针对机床厂生产污水复杂的来源及成分,首先运用破乳、混凝、中和、气浮等方法对各类生产污水进行预处理,再利用水解酸化、生物接触氧化工艺完成对综合污水的处理。生产污水出水水质符合DB21/1627—2008《辽宁省污水综合排放标准》,综合污水出水可以进行厂内中水回用。该工艺利用自控系统,易于管理,处理效果稳定,实现了污水无害化处理。
李亚峰, 白玥萌
doaj +2 more sources
, 2018 以聚丙烯酰胺(PAM)为助凝剂,比较了4种絮凝剂对印染整理废水中的COD和浊度的去除效果,通过正交实验确定了优化混凝条件;并进一步采用纳滤膜NF270对混凝上清液进行处理,纳滤浓缩液再经混凝-纳滤在处理。结果表明,混凝优化条件,pH为7,聚合氯化铝(PAC)、PAM投加量分别为400、1.6 mg/L,在此条件下,废水中COD去除效果最好,去除率达88%以上。混凝后的上清液经纳滤膜处理,出水COD为33 mg/L;纳滤浓缩液再经混凝-纳滤再处理后,出水COD可降至30 mg/L,出水水质均满足GB/T ...
刘威, 杭晓风, 万印华
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Recovering palladium (Pd) from low‐concentration metallurgical wastewater still poses significant challenges. In this study, triaminoguanidine hydrochloride was used as the key functional site, and three guanidine‐functionalized covalent organic frameworks (GCOFs) were successfully constructed by adjusting the substituents (–H, –OH, and –OCH3)
Jiaxing Xiong +9 more
wiley +1 more source
Hierarchical Structured TiO2/Boron‐Doped Diamond for Efficient Photo‐Electrocatalytic Degradation
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The discharge of refractory organic dye wastewater poses a significant threat to the ecological environment, necessitating the development of efficient treatment technologies. Herein, a uniform TiO2 array (TiO2‐AR) electrode is fabricated using a combination of magnetron sputtering and a mask plate process with a boron‐doped diamond (BDD ...
Haiming Sun +10 more
wiley +1 more source
Gongye shui chuli, 2016 以某眼药厂污水处理工程为实例，介绍了有机废水预处理及综合废水处理的工艺、构筑物参数及效果。针对眼药厂小牛血提取物清洗废水污染物浓度高，有机成分较多的问题，采用厌氧法进行预处理，以降低后续单元的处理负荷，再利用水解酸化、气浮、生物接触氧化对综合废水进行处理，另外利用改良的MBR法及二氧化氯消毒工艺对综合废水进行深度处理。该工艺易于管理，污染物去除率高，处理效果稳定，实现了污水无害化处理。
刘娜, 张计涛, 张霞, 许海军
doaj +2 more sources
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT In recent years, materials capable of achieving efficient electromagnetic wave (EMW) absorption over a broad frequency range have attracted widespread attention. Such materials are not only significant in mitigating electromagnetic interference and pollution caused by the extensive use of electronic devices but also demonstrate outstanding ...
Maoxia Lu +7 more
wiley +1 more source
, 2020 铀水冶和精制过程中会产生大量的低浓度含铀废水,对环境造成了严重污染。本研究对膜萃取技术处理含铀废水进行了综述,主要归纳了液膜、中空纤维膜、聚合物包容膜这3种膜在膜萃取处理含铀废水中的具体应用情况,简要说明了膜萃取技术在含铀废水处理中所具有的优点和应用潜力。同时对膜萃取技术的应用特点、机理进行了分析 ...
王勇, 孙广垠, 张恒
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, 2017 焦化废水是煤焦化过程产生的废水,含有高浓度的酚类、苯系物、杂环化合物、多环化合物等有机污染物,并且高盐、高氨氮,是一类难处理的工业废水。随着国家对焦化废水的管理日趋严格,传统的"预处理+生化处理"工艺很难满足排放或回用要求,因此对焦化废水的深度处理势在必行。从物化法和生化法两个方面对目前焦化废水深度处理常用技术的研究和应用情况进行了介绍,并探索性地提出了焦化废水深度处理技术未来的研究和发展方向。
姜安平() +11 more
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