Query：
学者姓名：张永祥
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
Chemical additions and energy costs in the wastewater industry are increasing trends in more stringent requirements for effluent quality and electricity rates. A novel ratio of chemical P removal addition to influent total phosphorus (TP) is proposed with an application to optimize operation for saving running costs. For this purpose, we monitored the performance of the process for a consecutive year (2018) and established a dynamic model related to the process. The main process variables included the concentration of influent and effluent quantity, chemical oxygen demand, biochemical oxygen demand, total nitrogen, TP, and dosing chemical additions. The ratio of the average daily effective mass of Fe (MFe-d) to the average daily mass of influent TP (TPInf-Tot-d) was found sharply rise to 3.3 g/g or higher in summer and autumn, whereas it smoothly dropped to about 2.3 g/g in winter and spring. This phenomenon can account for enhanced biological phos-phorus removal and upset. The emulating results showed that the proposed indicator can provide a relatively accurate representation of the system dynamics while significantly reducing the chemical additions and energy compared to a model that simulates the entire process without a complicated control system and algorithm.
Keyword ：
Chemical additions Chemical additions Aeration Aeration Enhanced biological phosphorus removal Enhanced biological phosphorus removal Model Model Relevance Relevance
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Hu, Yongfeng , Zhang, Yongxiang , Chu, Qi et al. Optimization of operating process was triggered by a saltation of ratio in a full-scale activated sludge system [J]. | DESALINATION AND WATER TREATMENT , 2023 , 281 : 163-175 . |
| MLA | Hu, Yongfeng et al. "Optimization of operating process was triggered by a saltation of ratio in a full-scale activated sludge system" . | DESALINATION AND WATER TREATMENT 281 (2023) : 163-175 . |
| APA | Hu, Yongfeng , Zhang, Yongxiang , Chu, Qi , Luo, Fan , Cao, Jinglun . Optimization of operating process was triggered by a saltation of ratio in a full-scale activated sludge system . | DESALINATION AND WATER TREATMENT , 2023 , 281 , 163-175 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The removal of biological phosphorus (P) removal along with chemical P removal additions is significantly important role in removing P at full-scale wastewater treatment plants (WWTPs). Few research groups have recently reported the use of P forms in these WWTPs. The current study mainly presents the varied forms of morphological phosphorus and the fate of chemical P removal agents in a full-scale WWTP that has adopted the A(2)O + MBR process. With time, the TP concentration in the liquid phase and the solid phase reaches the minimum (0.27 mg/L) and maximum values (1.75 mg/g), respectively. At this point, the TP concentration at the end of the aerobic and membrane pool becomes nearly constant. This indicates the complete removal of effluent TP from in the system. The heavy chemical P removal and addition dosing result in Al-P being the predominant P form in the solid phase. The fate of the chemical P removal and agents was determined by investigating the valences of the surface elements in freeze-dried MLSS at the membrane pool.
Keyword ：
chemical P removal addition chemical P removal addition morphological phosphorus morphological phosphorus A(2)O + MBR A(2)O + MBR operating parameters operating parameters P-fractionation P-fractionation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Hu, Yongfeng , Zhang, Yongxiang , Wang, Kun et al. Variations in the morphological phosphorus in a full-scale A(2)O + MBR process with heavy chemical P removal addition dosing [J]. | WATER AND ENVIRONMENT JOURNAL , 2023 , 37 (4) : 782-791 . |
| MLA | Hu, Yongfeng et al. "Variations in the morphological phosphorus in a full-scale A(2)O + MBR process with heavy chemical P removal addition dosing" . | WATER AND ENVIRONMENT JOURNAL 37 . 4 (2023) : 782-791 . |
| APA | Hu, Yongfeng , Zhang, Yongxiang , Wang, Kun , Zhao, Chonghui , Du, Wei . Variations in the morphological phosphorus in a full-scale A(2)O + MBR process with heavy chemical P removal addition dosing . | WATER AND ENVIRONMENT JOURNAL , 2023 , 37 (4) , 782-791 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Sulfidated nanoscale zero-valent iron (S-NZVI) has strong reactivity and electron selectivity and is one of the promising remediation materials in the field of ground water remediation. Due to the easy aggregation of the material, its reactivity is reduced, limiting the application in environmental remediation. In this paper, the zeta potential (zeta) of S-NZVI at different pH and the electrophoretic mobility of S-NZVI coated with sodium alginate (SA-S-NZVI) at different ionic strengths were investigated. The thickness of the polyelectrolyte layer and the surface charge of sodium alginate were also calculated by combining the soft particle theory. The polyelectrolyte layer properties were correlated with the particle dispersion to study the particle properties. The results showed that the thickness of the coating layer increased with the concentration of sodium alginate, and the settling rate and aggregation rate decreased. Thus the stability of the particles increased. Combined with the XDLVO theory, although the polyelectrolyte layer increases the surface potential of S-NZVI and improves the electrostatic repulsion, the spatial effect plays a significant role in the total repulsion energy. The smaller the particle size of SA-S-NZVI, the weaker the magnetism. Therefore, the thicker the polyelectrolyte layer, the better the stability of the particles. Finally, the change of particle size with time was predicted by the Smoluchowski aggregation model. This study has a significant effect on the sedimentation process of water treatment, the problem of filter clogging of drinking water, and the problem of aquifer blockage in the infiltration process of surface water.
Keyword ：
Soft particle Soft particle Polyelectrolyte Polyelectrolyte Nanoscale zero-valent iron Nanoscale zero-valent iron Dispersion stability Dispersion stability Extended DLVO Extended DLVO
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Yongxiang , Lin, Yuhui , Li, Yajun et al. Study of stability and aggregation kinetics of coated zero-valent iron nanoparticles [J]. | DESALINATION AND WATER TREATMENT , 2022 , 262 : 298-311 . |
| MLA | Zhang, Yongxiang et al. "Study of stability and aggregation kinetics of coated zero-valent iron nanoparticles" . | DESALINATION AND WATER TREATMENT 262 (2022) : 298-311 . |
| APA | Zhang, Yongxiang , Lin, Yuhui , Li, Yajun , Yang, Wenjing , Ye, Yifei , Wang, Jinhao . Study of stability and aggregation kinetics of coated zero-valent iron nanoparticles . | DESALINATION AND WATER TREATMENT , 2022 , 262 , 298-311 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The arbitrary distribution of groundwater monitoring sites and the redundancy of observation data restrict the ability of monitoring network to provide reliable and effective data information. The purpose of this study is aimed at finding a quantitative method to screen ideal monitoring locations and evaluate the efficiency of the monitoring network. In terms of site selection, we use hydrogeological information, monitoring density and monitoring location to select the suitable site to monitor groundwater quality, understand the temporal trends and identify the abnormal signals of pollution sources. To evaluate the efficiency of monitoring network we used the groundwater quality data for consecutive years to evaluate the groundwater monitoring network based on information entropy and principal component analysis (PCA). The results show that the optimized groundwater monitoring network is comprised of 10 monitoring wells. The efficiency evaluation results of information entropy and PCA are basically consistent. The maximum mutual information (T) and comprehensive index of monitoring site (Laiguangying) were 1.29 and 3.25 respectively, while the minimum T and comprehensive index of monitoring site (Jinzhan) were 1.05 and-0.36 respectively, and the data efficiency was low. This study provides a good example for optimizing a groundwater pollution monitoring network.
Keyword ：
Groundwater monitoring Groundwater monitoring Principal component analysis Principal component analysis Information entropy Information entropy Network optimization Network optimization
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Jia, Ruitao , Wu, Jin , Zhang, Yongxiang et al. Site prioritization and performance assessment of groundwater monitoring network by using information-based methodology [J]. | ENVIRONMENTAL RESEARCH , 2022 , 212 . |
| MLA | Jia, Ruitao et al. "Site prioritization and performance assessment of groundwater monitoring network by using information-based methodology" . | ENVIRONMENTAL RESEARCH 212 (2022) . |
| APA | Jia, Ruitao , Wu, Jin , Zhang, Yongxiang , Luo, Zhuoran . Site prioritization and performance assessment of groundwater monitoring network by using information-based methodology . | ENVIRONMENTAL RESEARCH , 2022 , 212 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
纳米零价铁的制备、改性及场地应用研究进展
Keyword ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
醇水体系制备纳米Pd/Fe颗粒去除水中2,4-DCP
Keyword ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Urban evaporation, as an essential part of local water vapor resources in urban areas, has often been underestimated. One possible reason is that the evaporation of urban hardened surfaces is seldom considered and poorly understood in urban evaporation estimation. This study focused on the mechanisms and calculation of evaporation on hardened surfaces in urban areas. Experimental monitoring was used to monitor the processes and characteristics of evaporation on hardened surfaces. Mathematical models based on water quantity constraints were built to calculate evaporation of hardened surfaces. The results showed that: The interception abilities for rainwater and rainfall days of impervious hardened surfaces determine their evaporated water amount, which means no water, no evaporation for the impervious surfaces. The greater evaporation of artificial sprinkling on roads happened in fewer days of rainfall and frost. The evaporation of pervious hardened ground is continuous compared to the impervious surface. Its soil moisture in the sub-layer of permeable concrete decreases periodically with a period of one day. The evaporation of hardened surfaces occupies 16-29% of the total amount of evaporation in the built-up areas in cities. Therefore, the hardened surface evaporation has great significance on the urban hydrological cycle and urban water balance.
Keyword ：
urban hydrology urban hydrology evaporation evaporation urban environment urban environment hardened surfaces hardened surfaces urban thermal comfort urban thermal comfort
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhou Jinjun , Liu Jiahong , Chu Qi et al. Mechanisms and Empirical Modeling of Evaporation from Hardened Surfaces in Urban Areas. [J]. | International journal of environmental research and public health , 2021 , 18 (4) . |
| MLA | Zhou Jinjun et al. "Mechanisms and Empirical Modeling of Evaporation from Hardened Surfaces in Urban Areas." . | International journal of environmental research and public health 18 . 4 (2021) . |
| APA | Zhou Jinjun , Liu Jiahong , Chu Qi , Wang Hao , Shao Weiwei , Luo Zhuoran et al. Mechanisms and Empirical Modeling of Evaporation from Hardened Surfaces in Urban Areas. . | International journal of environmental research and public health , 2021 , 18 (4) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
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.
Keyword ：
Urbanization Urbanization Urban wet island Urban wet island Absolute humidity Absolute humidity Urban dry island Urban dry island Artificial water dissipation Artificial water dissipation China China
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
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.
Keyword ：
Self-healing Self-healing X-ray computed tomography X-ray computed tomography Drying-wetting paths Drying-wetting paths Suction Suction Soil cracking Soil cracking Desiccation Desiccation
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
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.
Keyword ：
Quality control Quality control Water pollution Water pollution Fuzzy set theory Fuzzy set theory Hydroelectric power plants Hydroelectric power plants Hydrochemistry Hydrochemistry Potable water Potable water Water quality Water quality Hydroelectric power Hydroelectric power Groundwater Groundwater
Cite：
Copy from the list or Export to your reference management。
| 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) . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
