Results 21 to 30 of about 1,753,522 (129)
Gongye shui chuli, 2012 采用冷融技术对城市污水处理厂的剩余污泥进行了预处理, 分析了剩余污泥在-18℃下冷冻不同时长并于室温下解冻后, 污泥的沉降性能、脱水性能等的变化情况。试验结果表明剩余污泥经13 h的冷冻作用后, 污泥的沉降性能和脱水性能都有很大程度的提高, 而污泥完全冻结后继续延长冷冻时间至22 h时, 污泥的沉降性能和脱水性能并没有进一步的改善。结果还表明, 随着冷冻时间的增加, 剩余污泥的pH下降而SCOD上升。
李玉瑛, 李冰
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Because of superior transportability and high energy capacity, methanol is regarded as a potential hydrogen carrier. Photocatalytic methanol dehydrogenation offers a sustainable and cost‐effective method for releasing hydrogen. Conventional photocatalysts face challenging obstacles, including the low catalytic efficiency and rapid ...
Rundong Chen +9 more
wiley +1 more source
Gongye shui chuli, 2007 研究了微滤法脱除皮革废水中有机物的性能，并考察了其影响因素，对其主要操作条件进行了优化。试验中以COD指标来表征微滤法对有机物的脱除性能。其对皮革废水中COD去除率约为40％，酸性条件有利于COD去除，最佳操作pH为5，且蛋白质并不是影响皮革废水中COD水平的主导因素。同时比较了微滤法、活性炭吸附、生物吸附、超滤等方法对皮革废水中COD的脱除性能。
李嘉, 苏海佳, 谭天伟
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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
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
wiley +1 more source
Gongye shui chuli, 2021 石油炼化行业多采用甲基二乙醇胺（MDEA）对炼厂气等气体进行净化。MDEA可选择性脱除硫化氢，具有稳定性好、不易降解、对管路腐蚀小、工艺设备投资及操作费用低等特点，但抗污染能力较差。MDEA净化运行过程中会不断积累固体颗粒、降解物质、腐蚀物、二价金属离子、有机物等污染物并产生泡沫，导致炼厂气净化度低、脱硫剂大量损耗，给下游污水处理系统造成处理压力。制备了一系列非硅系MDEA液消泡剂样品，进行性能筛选与安全性能评价，研究其消泡性能、MDEA液污染影响，及对脱硫系统及后端污水处理系统的影响 ...
林亚祥
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Platinum (Pt) single‐atom catalyst (SAC) shows great promise for hydrogen evolution reaction (HER), but faces a huge challenge in activity enhancement due to the isolated single‐atom sites. Fabricating support with partially amorphous (pa) structures to realize the synergetic interaction in neighboring single atoms could facilitate H2O ...
Yanhui Song +9 more
wiley +1 more source
Gongye shui chuli, 2000 对六种聚丙烯酰胺溶解性能、粘度性能和脱水效果进行对比试验研究。从技术和经济角度综合考虑,在小试中优选出两种溶解时间短、粘度高、脱水效果好的聚丙烯酰胺。以化纤污水剩余污泥为处理对象,卧螺机为机械脱水设备,对优选出的两种聚丙烯酰胺进行上机应用试验。试验结果表明,溶解聚丙烯酰胺时,可适当加热或提高搅拌速度,以缩短溶解时间;英国联合胶体有限公司Zetag 89聚丙烯酰胺溶解性能、粘度性能和对化纤污水处理后剩余污泥脱水效果优于其他品种聚丙烯酰胺。
杨正富
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Gongye shui chuli, 2000 以天然高分子植物粉F691为原料，通过羧甲基化、接枝共聚和曼尼期(Mannich)三步反应合成出两性天然高分子改性絮凝剂(CGAAC)。CGAAC对污泥脱水性能的研究结果表明:在用量为2～20mg/L的范围内，CGAAC能明显改善污泥的沉降性能和过滤性能，其脱水性能优于阳离子絮凝剂PAM-C。
王杰, 肖锦, 詹怀宇
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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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