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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 ：
纳米零价铁(nZVI)具有较强的还原和吸附能力,能有效去除多种类型的污染物质,在地下水环境修复领域一直备受关注.但由于其易团聚和易钝化等缺陷,在实际应用过程中还存在着许多问题.本文综述了nZVI的常用制备方法,并对nZVI的常用改性方法进行归纳,分析各种改性方法起到的具体作用,指出改性过后的复合材料依然存在着的问题.在此基础上,阐述了改性nZVI在去除地下水中有机污染物和无机污染物的应用进展,总结了改性nZVI材料在去除过程中起到的具体作用和反应机制,并进一步归纳现阶段nZVI在地下水修复中的传输手段.根据已有研究成果,指出应改进现有制备方法实现nZVI的量产,在考虑nZVI生物毒性和材料再回收的前提下,合理使用多种改性方式实现nZVI的材料制备,选择符合污染场地实际情况的传输手段,从而提高nZVI在地下水污染修复中的使用寿命和对目标污染物的处理效果.
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| GB/T 7714 | 张永祥 , 王晋昊 , 井琦 et al. 地下水修复中纳米零价铁材料制备及应用综述 [J]. | 化工进展 , 2021 , 40 (8) : 4486-4496 . |
| MLA | 张永祥 et al. "地下水修复中纳米零价铁材料制备及应用综述" . | 化工进展 40 . 8 (2021) : 4486-4496 . |
| APA | 张永祥 , 王晋昊 , 井琦 , 李雅君 . 地下水修复中纳米零价铁材料制备及应用综述 . | 化工进展 , 2021 , 40 (8) , 4486-4496 . |
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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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摘要 ：
In this study, we used groundwater quality data from 17 sampling sites in Chaoyang District of Beijing, which was measured to analysis hydrochemical characteristics and water quality evaluation combined with Shukarev classification, single factor evaluation method, comprehensive evaluation method and fuzzy comprehensive evaluation method in different seasons in 2018. The results showed that there was little difference in chemical composition and groundwater quality in different seasons. The groundwater ions were mainly HCO3-, Ca2+, and Mg2+ in the western region, and the salinity of water was low. Na+ and Cl- appeared in the southwestern and eastern region, and the concentration of Na+ in May was lower than that in September. Although the single index evaluation method was one-sided, it could determine the main pollutants. Although the comprehensive evaluation method could reflect the water quality status, it greatly highlighted the pollution factors and overestimated the degree of water quality exceeding the standard to some extent. The fuzzy comprehensive evaluation method considered the weight of participating factors, which made the evaluation results more objective and reasonable. The four parameters of TH, Fe3+, NH4+-N and As3+ exceeded the standard, but they generally met the drinking water quality standard. © Published under licence by IOP Publishing Ltd.
关键词 ：
Fuzzy set theory Fuzzy set theory Groundwater Groundwater Hydrochemistry Hydrochemistry Hydroelectric power Hydroelectric power Hydroelectric power plants Hydroelectric power plants Potable water Potable water Quality control Quality control Water pollution Water pollution Water quality Water quality
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| GB/T 7714 | Luo, Zhuoran , Liu, Jiahong , Zhang, Yongxiang et al. Hydrochemical Characteristics and Water Quality Evaluation in Chaoyang District, Beijing [C] . 2021 . |
| MLA | Luo, Zhuoran et al. "Hydrochemical Characteristics and Water Quality Evaluation in Chaoyang District, Beijing" . (2021) . |
| APA | Luo, Zhuoran , Liu, Jiahong , Zhang, Yongxiang , Shao, Weiwei , Jia, Ruitao . Hydrochemical Characteristics and Water Quality Evaluation in Chaoyang District, Beijing . (2021) . |
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