Results 1 to 10 of about 311,526 (135)
Gongye shui chuli, 2020 采用正交实验方法，探讨了过二硫酸盐用量、硫酸亚铁用量、初始pH及反应时间4个工艺参数对亚铁-过二硫酸盐法深度氧化处理造纸废水（二级生化出水）效果的影响。结果表明：过二硫酸盐用量为436 mg/L，亚铁用量为654 mg/L，原水基础上微调或不调初始pH，反应30 h，为处理效果最优工艺条件。经亚铁-过二硫酸盐法处理后上清液CODCr去除率可达90%，色度去除率可达97%。与Fenton法相比，亚铁-过二硫酸盐法在处理效果及经济成本上具有明显优势，应用前景良好。
解玉佳, 李群
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Gongye shui chuli, 2020 随着环境污染日益严重，各种形式的高级氧化技术逐渐发展起来。其中活化过硫酸盐高级氧化技术由于原料易得，效果显著等优点颇受人们关注。过硫酸盐活化主要产生硫酸根自由基和羟基自由基两种高活性自由基，能够有效去除难降解有机污染物。阐述了过硫酸盐活化体系中两种主要活性自由基的特点及其与有机物的反应机理；综述了活化过硫酸盐的不同方式，做了各种活化方法的技术经济优劣性分析，并对存在问题进行了分析和展望。
米记茹 +6 more
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Gongye shui chuli, 2017 考察了不同硫酸盐浓度对好氧反硝化菌铜绿假单胞菌CP1反硝化过程的影响。结果表明，随着硫酸盐浓度的增加，菌株CP1反硝化时间逐渐缩短，脱氮速率加快，硫酸盐为300 mg/L，菌株CP1获得最优的脱氮效果；当硫酸盐增加到750 mg/L时，反硝化时间大大延长，脱氮速率降低。在硫酸盐为450 mg/L时，菌株获得最大的脱氮速率，可达到48.83 mg/（L·h）。在0~1 200 mg/L硫酸盐质量浓度范围内，出水均无NO2--N累积。硫酸盐含量在整个反硝化过程中无明显变化。
潘梦岚, 黄少斌, 易立, 何嘉欣
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Gongye shui chuli, 2018 热活化过硫酸盐是一种新兴的水处理技术，主要利用产生的硫酸根自由基（SO4·－）降解有机物。主要研究了反应温度、过硫酸盐浓度、初始pH以及过渡金属（Fe2+）对丁基黄药降解效果的影响。结果表明，提高系统反应温度能够增加丁基黄药的降解率，热激活过硫酸盐降解丁基黄药符合准一级反应动力学模型（R2>0.898 9），温度对丁基黄药降解速率的影响符合阿伦尼乌斯方程（R2>0.960 5）。当温度为20～50℃时，计算出的反应活化能为69 kJ/mol。随着过硫酸盐浓度的增加，反应速率常数增加 ...
郭飞飞 +5 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Although alloy‐based materials present potential for peroxymonosulfate (PMS) activation, metal ion leaching remains severely restricted during the pollution degradation process. Herein, the porous carbon‐supported Fe–Cu alloy derived from industrial copper slag was prepared to remove the organic pollutants from wastewater while inhibiting the ...
Xuanren Chen +10 more
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Heteroatom coordination regulation is an effective strategy to enhance Fenton‐like catalysis of single atom catalysts, yet its impact on the local microenvironment of active sites still requires in‐depth investigation. Herein, Cl2–Fe–NC catalysts with axial Cl coordination are prepared.
Jing‐Hao Yan +6 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Cross‐scale assembly of metal (sub) nanoparticles and/or single atoms into millimeter/nanostructured metal monolithic catalysts (Min‐SMCs) is highly appealing for sustainable water cleanup, due to energy‐efficient catalyst recyclability, high infrastructure compatibility, and low metal‐releasing risks.
Jia‐Cheng E. Yang +4 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu +5 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo +9 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
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