Results 1 to 10 of about 505 (82)
Gongye 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
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Evidence-Based Complementary and Alternative Medicine, Volume 2014, Issue 1, 2014., 2014 Objectives. To apply modern text‐mining methods to identify candidate herbs and formulae for the treatment of diabetic nephropathy. Methods. The method we developed includes three steps: (1) identification of candidate ancient terms; (2) systemic search and assessment of medical records written in classical Chinese; (3) preliminary evaluation of the ...
Lei Zhang +7 more
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Gongye shui chuli, 2018 采用天然沸石去除煤化工废水中的氨氮，考察了沸石投量、吸附时间、温度、pH等因素对氨氮去除率的影响。另外对天然沸石进行改性，对比了酸、碱、盐、微波、焙烧等方式对天然沸石吸附性能的影响。结果表明，天然沸石对煤化工废水中的氨氮有较好的去除效果，而碱改性可以明显提高沸石的吸附性能。采用HCl溶液在高温条件下解吸饱和天然沸石，可使沸石的吸附能力得以再生。
张璐, 杨忆新, 罗明生, 禹耕之
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Gongye shui chuli, 2014 用氯化钠作改性剂，在微波的辅助下对沸石进行改性，制得改性沸石。研究各种因素对改性沸石吸附水中铜的影响，并研究其吸附等温方程。结果表明：在改性沸石投加质量浓度为6 g/L，吸附时间为80 min，温度为30℃，pH=5时其吸附效果较好，且改性沸石对铜离子的吸附符合Freundlich吸附等温方程模型。与天然沸石相比，其吸附性能有明显提高，且沸石经过5次再生，吸附性能仍然较佳。
薛美香, 陈建琴, 林玉凤
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Gongye shui chuli, 2012 首先通过试验考察了活性炭、合成沸石、Al2O3、自制沸石分子筛4种吸附剂对排放废水中NH4+-N的吸附效果。结果表明,自制沸石分子筛对NH4+-N的吸附效果最好。以自制沸石分子筛为载体,负载质量分数为10%的Bi2O3制备Bi2O3-沸石分子筛。在常温、反应时间为1.5 h、pH=7、H2O2存在的条件下,Bi2O3-沸石分子筛对废水中的NH4+-N去除率达到87.4%,并且在重复使用6次后,Bi2O3沸石分子筛对NH4+-N的去除率仍可达70%以上。
张仁江, 高建峰, 彭涛
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Gongye shui chuli, 2018 对天然沸石和FeCl3改性沸石的物化特性进行表征，并研究其对磷酸盐的吸附效能和机理。结果表明：改性后沸石的晶体形貌、表面性能和化学成分发生变化。在粒径为0.3~0.6 mm、投加量为50 g/L、磷酸盐初始质量浓度为50 mg/L、温度为25℃、pH=7、吸附时间为10 h的条件下，天然沸石和改性沸石对磷酸盐的去除率分别为24.3%、98.45%。改性沸石的再生能力较强。Freundlich、热力学模型和再生实验结果表明改性沸石对磷酸盐的吸附以物理吸附为主。
邵立荣 +4 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Metal oxide‐based catalysts for oxygen reduction reaction (ORR) have drawn great attention in recent years. However, it remains technically challenging for the precise regulation of the overall performance due to the trade‐off effect among the activity, selectivity, and stability of electrocatalysts. Herein, a balancing strategy to control the
Haoran Ma +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo +3 more
wiley +1 more source
Gongye shui chuli, 2014 以煤矸石和高炉渣为原料合成了2种新型沸石，研究吸附工艺对2种沸石吸附氨氮废水效果的影响并初步研究了吸附机理。实验结果表明：2种沸石吸附氨氮的最佳工艺条件为：沸石投加质量浓度24 g/L，振荡时间分别为60、45 min，废水pH=7；最佳条件下，沸石对氨氮的去除率最高达63%；吸附等温方程表明：Freundlich方程能更好地描述2种合成沸石对氨氮的吸附行为。
陈莉荣, 张娜, 杜明展, 刘文
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source