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学者姓名：张永祥
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摘要 ：
醇水体系制备纳米Pd/Fe颗粒去除水中2,4-DCP
关键词 ：
钯铁 钯铁 醇水体系 醇水体系 加氢脱氯 加氢脱氯 2,4-二氯苯酚 2,4-二氯苯酚
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| GB/T 7714 | 张永祥 , 白冰 , 杨文静 et al. 醇水体系制备纳米Pd/Fe颗粒去除水中2,4-DCP [J]. | 张永祥 , 2021 , 50 (3) : 565-570 . |
| MLA | 张永祥 et al. "醇水体系制备纳米Pd/Fe颗粒去除水中2,4-DCP" . | 张永祥 50 . 3 (2021) : 565-570 . |
| APA | 张永祥 , 白冰 , 杨文静 , 郭汶俊 , 李雅君 , 应用化工 . 醇水体系制备纳米Pd/Fe颗粒去除水中2,4-DCP . | 张永祥 , 2021 , 50 (3) , 565-570 . |
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摘要 ：
对北京市通州区H再生水厂采用的A~2/O+MBR工艺运行效果与不同环节碳排放特征进行研究.结果表明:2018年该再生水厂对BOD_5,COD_(cr),NH_4~+-N,TN和TP的平均去除率分别为97.3%,94.1%,98.6%,77.0%,96.2%;全厂碳排放总量和吨水碳排放量呈春夏季节逐渐降低,秋冬季节缓慢升高的特征,全厂综合吨水碳排放量约为2.26kgCO_2e/t.碳排放总量中能耗碳排放量占主要地位,CH_4,N_2O和物耗碳排放量占比较小;统计分析显示CH_4,能耗和物耗吨水碳排放量与BOD_5,TN进水浓度及BOD_5去除率显著相关;N_2O吨水碳排放量与TN与BOD_5进水...
关键词 ：
污水处理 污水处理 运行效果 运行效果 A~2/O+MBR工艺 A~2/O+MBR工艺 碳排放 碳排放
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| GB/T 7714 | 呼永锋 , 梁梅 , 张永祥 et al. A~2/O+MBR工艺运行效果与碳排放特征研究 [J]. | 中国环境科学 , 2021 , 41 (09) : 4439-4446 . |
| MLA | 呼永锋 et al. "A~2/O+MBR工艺运行效果与碳排放特征研究" . | 中国环境科学 41 . 09 (2021) : 4439-4446 . |
| APA | 呼永锋 , 梁梅 , 张永祥 , 王坤 . A~2/O+MBR工艺运行效果与碳排放特征研究 . | 中国环境科学 , 2021 , 41 (09) , 4439-4446 . |
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摘要 ：
为了提高纳米铁的活性和分散性,在醇水体系下制备出纳米钯铁(Pd/Fe)双金属颗粒并表征,将制得的纳米Pd/Fe颗粒应用于水中2,4-二氯苯酚(2,4-DCP)的去除,考察了材料投加量、反应温度、初始pH值、2,4-二氯苯酚初始浓度等因素对2,4-DCP去除的影响,分析了2,4-DCP的去除机理并进行动力学拟合.结果表明,在醇水体系中制备纳米铁有利于纳米颗粒的稳定分散;钯的加入将脱氯途径转变为催化加氢,极大改善了2,4-DCP的去除效果;当2,4-DCP初始浓度为20 mg/L、反应温度30℃、纳米Pd/Fe颗粒投加量为2 g/L时,2,4-DCP可在5 h内去除99.9％;反应过程符合修正的一级反应动力学方程.
关键词 ：
钯铁 钯铁 2 2 醇水体系 醇水体系 4-二氯苯酚 4-二氯苯酚 加氢脱氯 加氢脱氯
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| GB/T 7714 | 张永祥 , 白冰 , 杨文静 et al. 醇水体系制备纳米Pd/Fe颗粒去除水中2,4-DCP [J]. | 应用化工 , 2021 , 50 (3) : 565-570 . |
| MLA | 张永祥 et al. "醇水体系制备纳米Pd/Fe颗粒去除水中2,4-DCP" . | 应用化工 50 . 3 (2021) : 565-570 . |
| APA | 张永祥 , 白冰 , 杨文静 , 郭汶俊 , 李雅君 . 醇水体系制备纳米Pd/Fe颗粒去除水中2,4-DCP . | 应用化工 , 2021 , 50 (3) , 565-570 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
纳米零价铁的制备、改性及场地应用研究进展
关键词 ：
场地应用 场地应用 制备 制备 纳米零价铁 纳米零价铁 改性 改性
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| GB/T 7714 | 黄雪征 , 张永祥 , 田振军 et al. 纳米零价铁的制备、改性及场地应用研究进展 [J]. | 黄雪征 , 2021 , 47 (1) : 12-18,26 . |
| MLA | 黄雪征 et al. "纳米零价铁的制备、改性及场地应用研究进展" . | 黄雪征 47 . 1 (2021) : 12-18,26 . |
| APA | 黄雪征 , 张永祥 , 田振军 , 井琦 , 叶逸菲 , 水处理技术 . 纳米零价铁的制备、改性及场地应用研究进展 . | 黄雪征 , 2021 , 47 (1) , 12-18,26 . |
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摘要 ：
总结了纳米零价铁常用的制备技术,并比较了各种制备方法的优缺点,分析了纳米零价铁技术在实际应用中存在的问题,叙述了纳米零价铁4种改性方法的研究进展。介绍了国内外关于纳米零价铁技术的中试及场地治理的情况,分析了纳米零价铁工程化应用的制约因素,即纳米零价铁的高制备成本、在地下水流场中的迁移机制不明晰及所造成的生态环境风险难以评估等。认为纳米零价铁技术与生物技术、高级氧化技术、电化学技术等多种技术的联用是未来地下水环境修复治理的一个重要的研究方向,作为新兴的污染场地修复技术在我国有着巨大的发展空间及应用前景。
关键词 ：
制备 制备 场地应用 场地应用 改性 改性 纳米零价铁 纳米零价铁
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| GB/T 7714 | 黄雪征 , 张永祥 , 田振军 et al. 纳米零价铁的制备、改性及场地应用研究进展 [J]. | 水处理技术 , 2021 , 47 (01) : 12-18,26 . |
| MLA | 黄雪征 et al. "纳米零价铁的制备、改性及场地应用研究进展" . | 水处理技术 47 . 01 (2021) : 12-18,26 . |
| APA | 黄雪征 , 张永祥 , 田振军 , 井琦 , 叶逸菲 . 纳米零价铁的制备、改性及场地应用研究进展 . | 水处理技术 , 2021 , 47 (01) , 12-18,26 . |
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摘要 ：
一种折叠抬升式且易清理的排水篦子属于排水设施技术领域，包括承托篦套、顶部翻盖篦板、抬升篦板。顶部翻盖篦板、抬升篦板分别均匀设置若干排水通道且空间上相互垂直；承托篦套与顶部翻盖篦板和抬升篦板通过伸缩杆件和铆钉组合联结，可以根据进行打开或关闭的动作路径从而产生联动。本折叠抬升式且易清理的排水篦子，不仅优化了普通水篦子而采用双层篦板设计，并改进了双层篦子不易清理、易堵塞的缺点。本发明不只具有分层拦截堵塞物的效果，将较小的阻塞物拦截在抬升篦板上，减轻排水沟阻塞的情况，从而缓解排水压力。并且特殊的抬升式设计便于垃圾被发现、收集和清理，减少清理人员的工作量，提高排水效率。
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| GB/T 7714 | 张永祥 , 杨文静 . 一种折叠抬升式且易清理的排水篦子 : CN202110351881.1[P]. | 2021-04-01 . |
| MLA | 张永祥 et al. "一种折叠抬升式且易清理的排水篦子" : CN202110351881.1. | 2021-04-01 . |
| APA | 张永祥 , 杨文静 . 一种折叠抬升式且易清理的排水篦子 : CN202110351881.1. | 2021-04-01 . |
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摘要 ：
Groundwater is an important source of water in Beijing. Hydrochemical composition and water quality are the key factors to determine the availability of groundwater. Therefore, an improved integrated weight water quality index approach (IWQI) combining the entropy weight method and the stochastic simulation method is proposed. Through systematic investigation of groundwater chemical composition in different periods, using a hydrogeochemical diagram, multivariate statistics and spatial interpolation analysis, the spatial evolution characteristics and genetic mechanism of groundwater chemistry are discussed. The results show that the groundwater in the study area is weakly alkaline and low mineralized water. The south part of the study area showed higher concentrations of total dissolved solids, total hardness and NO3--N in the dry season and wet season, and the main hydrochemical types are HCO3--Ca and HCO3--Ca-Mg. The natural source mechanism of the groundwater chemical components in Chaoyang District includes rock weathering, dissolution and cation exchange, while the human-made sources are mainly residents and industrial activities. Improved IWQI evaluation results indicate that water quality decreases from southwest to northeast along groundwater flow path. The water quality index (WQI) method cannot reflect the trend of groundwater. Sensitivity analysis indicated that the improved IWQI method could describe the overall water quality reliably, accurately and stably.
关键词 ：
Chaoyang district Chaoyang district groundwater quality groundwater quality hydrochemistry hydrochemistry IWQI IWQI sensitivity analysis sensitivity analysis
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| GB/T 7714 | Zhang, Yongxiang , Jia, Ruitao , Wu, Jin et al. Evaluation of Groundwater Using an Integrated Approach of Entropy Weight and Stochastic Simulation: A Case Study in East Region of Beijing [J]. | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH , 2021 , 18 (14) . |
| MLA | Zhang, Yongxiang et al. "Evaluation of Groundwater Using an Integrated Approach of Entropy Weight and Stochastic Simulation: A Case Study in East Region of Beijing" . | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 18 . 14 (2021) . |
| APA | Zhang, Yongxiang , Jia, Ruitao , Wu, Jin , Wang, Huaqing , Luo, Zhuoran . Evaluation of Groundwater Using an Integrated Approach of Entropy Weight and Stochastic Simulation: A Case Study in East Region of Beijing . | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH , 2021 , 18 (14) . |
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摘要 ：
A novel and amplifying anaerobic electrochemical membrane bioreactor (AnEMBR, R2) was constructed and operated for a long time (204 days) with synthetic glucose solution having an average chemical oxygen demand (COD) of 315 mg L-1, at different applied voltages and room temperatures. More than twice sodium bicarbonate was added for maintaining a pH of around 6.7 in the supernatant of the reactor R2, close to that of a control reactor called anaerobic membrane bioreactor (AnMBR, R1), after 138 days. And the transmembrane pressure (TMP) for the R2 system was only 0.534 bar at the end of operation and 0.615 bar for the R1 system. Although the electrostatic repulsion force contributed to pushing away the pollutants (proteins, polysaccharose and inorganic salt deposits, and so on), more microorganisms adsorbed and accumulated on the membrane surface after the whole operation, which might result in a rapid increase in membrane filtration resistance in the long-term operation. There were much more exoelectrogenic bacteria, mainly Betaproteobacteria, Deltaproteobacteria and Grammaproteobacteria, on the cathode and the dominant methanogen Methanothrix content on the cathode was three times higher than the AnMBR. The study provides an important theoretical foundation for the application of AnEMBR technology in the treatment of low organic strength wastewater.
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| GB/T 7714 | Cao, Mengjing , Zhang, Yongxiang , Zhang, Yan . Effect of applied voltage on membrane fouling in the amplifying anaerobic electrochemical membrane bioreactor for long-term operation [J]. | RSC ADVANCES , 2021 , 11 (50) : 31364-31372 . |
| MLA | Cao, Mengjing et al. "Effect of applied voltage on membrane fouling in the amplifying anaerobic electrochemical membrane bioreactor for long-term operation" . | RSC ADVANCES 11 . 50 (2021) : 31364-31372 . |
| APA | Cao, Mengjing , Zhang, Yongxiang , Zhang, Yan . Effect of applied voltage on membrane fouling in the amplifying anaerobic electrochemical membrane bioreactor for long-term operation . | RSC ADVANCES , 2021 , 11 (50) , 31364-31372 . |
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摘要 ：
Managed aquifer recharge is an efficient approach using surface water for groundwater recharge. However, soil clogging in the infiltration systems represents a critical problem that reduces the efficiency of recharge systems. In recent years, much research has been conducted to investigate clogging in subsurface and surface soil (cake). Cake prevents infiltration into the water table and can drastically reduce the recharge rate. In arid and semi-arid areas, alternation of humid and dry seasons has an effect on cake cracking. In the present research, the propagation of desiccation cracking and self-healing of unconsolidated soil (cake), placed in Plexiglas columns, was investigated using X-ray computed tomography (CT) during drying-wetting (D-W) paths. The results showed that during the drying path, cracks initiated at the base of the soil by friction with the bottom of the column and then propagated to the top surface of the cake. As the drying time increased, evaporation at the top surface led to more cracks growing from the surface than from the bottom of the cake. However, the cracks at the bottom tended to stabilize because the water content was greater than at the top surface. The initiation, propagation, and expansion of the cracks developed in the saturated condition of the cake. During the wetting path, some cracks were closed while others appeared. The cracks tended to close progressively with wetting time, highlighting the self-healing phenomenon, probably due to the high plasticity index of cake soil. The results showed that cake swelling is mainly related to an increase of the void ratio due to a decrease in suction between particles. The results demonstrate the capacity of the X-ray CT technique to investigate the evolution of cracks during D-W paths.
关键词 ：
Desiccation Desiccation Drying-wetting paths Drying-wetting paths Self-healing Self-healing Soil cracking Soil cracking Suction Suction X-ray computed tomography X-ray computed tomography
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| GB/T 7714 | Zaidi, Mohammed , Ahfir, Nasre-Dine , Alem, Abdellah et al. Use of X-ray computed tomography for studying the desiccation cracking and self-healing of fine soil during drying-wetting paths [J]. | ENGINEERING GEOLOGY , 2021 , 292 . |
| MLA | Zaidi, Mohammed et al. "Use of X-ray computed tomography for studying the desiccation cracking and self-healing of fine soil during drying-wetting paths" . | ENGINEERING GEOLOGY 292 (2021) . |
| APA | Zaidi, Mohammed , Ahfir, Nasre-Dine , Alem, Abdellah , Taibi, Said , El Mansouri, Bouabid , Zhang, Yongxiang et al. Use of X-ray computed tomography for studying the desiccation cracking and self-healing of fine soil during drying-wetting paths . | ENGINEERING GEOLOGY , 2021 , 292 . |
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摘要 ：
Evapotranspiration links land surface hydrological processes with the atmosphere and has an important influence on regional water cycles and the water balance. Research has shown that urbanization can impact the hydrological balance, leading to urban wet and dry island effects; however, the mechanisms driving these phenomena remain uncertain. In this study, the humidity levels of urban areas in China were compared with the surrounding areas prior to (1960-1969), and following (2010-2019) rapid urbanization to determine the drivers and mechanisms of urban wet and dry island effects. Monthly observational datasets of temperature, water vapor pressure, and relative humidity from 613 meteorological stations were combined with the processes of urban artificial water dissipation to analyze the temporal and spatial characteristics of urban dry/wet islands. Results showed that cold and dry urban areas tended to have wet island effects, while warm and humid urban areas had dry island effects. The dry/wet island intensity was less than 3.5% in most cities. Furthermore, urban areas tended to be dry islands during summer and wet islands during winter. Coastal cities were an exception, being dry islands throughout the year. Comparisons of humidity prior to and following rapid urbanization revealed that absolute humidity had generally increased, during winter, all regions displayed increased absolute humidity, by as much as 8%-16% in northern China. This was despite an overall trend towards increased dry island intensity, and was attributed to intensifying urban heat island effects. These results provide valuable information to help understand the causes of dry/wet island effects in urban areas.
关键词 ：
Absolute humidity Absolute humidity Artificial water dissipation Artificial water dissipation China China Urban dry island Urban dry island Urbanization Urbanization Urban wet island Urban wet island
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| GB/T 7714 | Luo, Zhuoran , Liu, Jiahong , Zhang, Yongxiang et al. Spatiotemporal characteristics of urban dry/wet islands in China following rapid urbanization [J]. | JOURNAL OF HYDROLOGY , 2021 , 601 . |
| MLA | Luo, Zhuoran et al. "Spatiotemporal characteristics of urban dry/wet islands in China following rapid urbanization" . | JOURNAL OF HYDROLOGY 601 (2021) . |
| APA | Luo, Zhuoran , Liu, Jiahong , Zhang, Yongxiang , Zhou, Jinjun , Yu, Yingdong , Jia, Ruitao . Spatiotemporal characteristics of urban dry/wet islands in China following rapid urbanization . | JOURNAL OF HYDROLOGY , 2021 , 601 . |
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