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学者姓名：杨艳玲
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摘要 ：
建筑供水系统是城镇供水体系的终端,建筑的节能节水问题一直是业界关注的热点。建筑给水管道系统多采用枝状管网,存在节能节水方法不多、最不利点水压待优化、节能节水效率不高等问题。提出了基于最不利点的建筑给水立管设置成环状观点,采用EPANET软件建立了建筑给水立管系统模型,研究了建筑给水管道系统在不同流量、不同立管成环型式的最不利点水头损失变化规律,表明建筑立管成环型式均有明显的水头损失消减作用,确定出几种典型建筑给水立管成环型式的最不利点水头损失消减效果,其中2种管网的三立管成环型式的水头损失比单立管型式分别减小27.08%和50.47%;明确了建筑给水立管成环型式的连通管长度及管径之间适配性,确...
关键词 ：
最不利点 最不利点 流量 流量 建筑给水管道 建筑给水管道 水头损失 水头损失 立管成环 立管成环
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| GB/T 7714 | 刘航 , 杨艳玲 , 李星 et al. 建筑给水立管成环型式与水头损失消减效果研究 [J]. | 给水排水 , 2021 , 57 (03) : 118-124 . |
| MLA | 刘航 et al. "建筑给水立管成环型式与水头损失消减效果研究" . | 给水排水 57 . 03 (2021) : 118-124 . |
| APA | 刘航 , 杨艳玲 , 李星 , 周志伟 , 刘永旺 , 赵锂 . 建筑给水立管成环型式与水头损失消减效果研究 . | 给水排水 , 2021 , 57 (03) , 118-124 . |
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摘要 ：
建筑给水立管成环型式与水头损失消减效果研究
关键词 ：
最不利点 最不利点 建筑给水管道 建筑给水管道 立管成环 立管成环 水头损失 水头损失 流量 流量
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| GB/T 7714 | 刘航 , 杨艳玲 , 李星 et al. 建筑给水立管成环型式与水头损失消减效果研究 [J]. | 刘航 , 2021 , 47 (3) : 118-124 . |
| MLA | 刘航 et al. "建筑给水立管成环型式与水头损失消减效果研究" . | 刘航 47 . 3 (2021) : 118-124 . |
| APA | 刘航 , 杨艳玲 , 李星 , 周志伟 , 刘永旺 , 赵锂 et al. 建筑给水立管成环型式与水头损失消减效果研究 . | 刘航 , 2021 , 47 (3) , 118-124 . |
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摘要 ：
研究了山东地区引黄水库水水厂存在的季节性铝超标问题。结果表明,出厂水中铝主要来自进水所含及铝盐混凝剂引入,出厂水铝超标的主要原因为进水pH变化造成的混凝效果不佳导致的溶解性铝过量。当进水pH小于8.2时,现用的聚合氯化铝不会造成出厂水铝超标;当pH在8.2～8.4时,更换为铁盐混凝剂可取得较高的效果,其中聚合硫酸铁具有更佳的pH适应性;当pH大于8.4时,先降低进水pH才能取得有效的调控效果。采用聚合氯化铝铁有效地解决了水厂铝超标问题,为引黄水库水水厂出厂水的铝含量保障提供了技术支持。
关键词 ：
pH pH 混凝剂 混凝剂 给水厂 给水厂 铝形态 铝形态 铝超标 铝超标
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| GB/T 7714 | 张宇 , 杨艳玲 , 于海宽 et al. 给水厂铝超标的影响因素与调控措施 [J]. | 水处理技术 , 2021 , 47 (06) : 84-87,92 . |
| MLA | 张宇 et al. "给水厂铝超标的影响因素与调控措施" . | 水处理技术 47 . 06 (2021) : 84-87,92 . |
| APA | 张宇 , 杨艳玲 , 于海宽 , 李星 , 朱振良 , 吕秀民 . 给水厂铝超标的影响因素与调控措施 . | 水处理技术 , 2021 , 47 (06) , 84-87,92 . |
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摘要 ：
研究了水力反冲洗和加氯反冲洗对超滤系统的膜污染控制效果,考察了加氯反冲洗后超滤系统初滤水中消毒副产物(DBP)前体物含量的变化特性,提出了加氯反冲洗过程的优化措施。结果表明,类蛋白质是造成不可逆膜污染的主要污染物,加氯反冲洗的酪氨酸、色氨酸洗脱效果更佳,质量浓度20 mg/L的NaClO投加量的不可逆膜污染速率只有水力反冲洗的5.71%,可有效控制不可逆膜污染,超滤系统可以长时间稳定运行。水力反冲洗的超滤系统有机物去除效果明显,加氯反冲洗可造成有机物去除效果降低,初滤水中DBP前体物含量升高,主要为三氯甲烷、一溴二氯甲烷、三氯乙酸、二氯乙酸前体物。可采用加氯反冲洗与水力反冲洗的复合反冲洗方式,...
关键词 ：
初滤水 初滤水 加氯反冲洗 加氯反冲洗 消毒副产物前体物 消毒副产物前体物 膜污染控制 膜污染控制 超滤系统 超滤系统
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| GB/T 7714 | 岳霄 , 李星 , 于海宽 et al. 加氯反冲洗膜污染及消毒副产物前体物的调控 [J]. | 水处理技术 , 2021 , 47 (07) : 99-102,107 . |
| MLA | 岳霄 et al. "加氯反冲洗膜污染及消毒副产物前体物的调控" . | 水处理技术 47 . 07 (2021) : 99-102,107 . |
| APA | 岳霄 , 李星 , 于海宽 , 杨艳玲 , 吕秀民 , 纪洪杰 . 加氯反冲洗膜污染及消毒副产物前体物的调控 . | 水处理技术 , 2021 , 47 (07) , 99-102,107 . |
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摘要 ：
A Fe-doped graphite-like carbon nitride (g-C3N4) nanocomposites containing various Fe contents (5 wt.%, 10 wt. % and 15 wt.%) were prepared via two-step calcination thermal polymerization, and were employed as efficient heterogeneous photo-Fenton composites towards rhodamine B (RhB) removal in visible-light/H2O2 system. The sheet structure of g-C3N4 was refined down to nano-scale and less densely packed by the increasing Fe-doping ratio. X-ray diffraction (XRD), Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) spectra indicated that Fe was doped completely into the g-C3N4 lattice. Over 90 %RhB was degraded in photo-Fenton system within 45 min under the optimal Fe-doping ratio of 10 wt.% (10 % Fe-g-C3N4). The degradation efficiency of photo-Fenton was superior in comparison with photocatalysis and Fenton reaction. The as-prepared composite exhibited excellent performance (similar to 90 % removal) and high stability in a wide range of pH value (3 similar to 9), and the degradation data well fitted with the pseudo-first-order kinetics model. The enhanced photo-Fenton catalytic activity benefited from the Z-scheme heterojunctions of Fe-g-C3N4, which improved the separation ability of photo-generated charge carriers and increased the electrons that participated in Fe2+/Fe3+ cycle. The main active oxygen species of Fe-g-C3N4 were hydroxyl radicals, followed by superoxide radicals and electron holes. The effect of Fe-doping was revealed by density functional theory calculation. The excellent recyclability and stability of Fe-g-C3N4 catalyst was also observed. Such photo-Fenton system was also effective to degrade other organic pollutants. The findings reported here offer promising implications in developing the utilization of Fe-g-C3N4 composite in photo-Fenton system for treatment of wastewater.
关键词 ：
Density functional theory (DFT) Density functional theory (DFT) Fe doped g-C3N4 Fe doped g-C3N4 Photo-Fenton Photo-Fenton RhB RhB
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| GB/T 7714 | Ji, Siyang , Yang, Yanling , Zhou, Zhiwei et al. Photocatalysis-Fenton of Fe-doped g-C3N4 catalyst and its excellent degradation performance towards RhB [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2021 , 40 . |
| MLA | Ji, Siyang et al. "Photocatalysis-Fenton of Fe-doped g-C3N4 catalyst and its excellent degradation performance towards RhB" . | JOURNAL OF WATER PROCESS ENGINEERING 40 (2021) . |
| APA | Ji, Siyang , Yang, Yanling , Zhou, Zhiwei , Li, Xing , Liu, Yuankun . Photocatalysis-Fenton of Fe-doped g-C3N4 catalyst and its excellent degradation performance towards RhB . | JOURNAL OF WATER PROCESS ENGINEERING , 2021 , 40 . |
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摘要 ：
Constructed wetlands (CWs) usually exhibit limits in functional redundancy and diversity of microbial community contributing to lower performances of nutrients removal in decentralized domestic sewage treatment. To address this quandary, heterotrophic nitrification-aerobic denitrification (HN-AD) bacteria was added in tidal flow CWs (TFCWs) developing for nitrogen (N) and phosphorus (P) removal. With addition of HN-AD bacteria, TFCWs could be setup more rapidly and obtained better removal efficiencies of 66.9%-70.1% total nitrogen (TN), and 88.2%-92.4% total phosphorus (TP) comparing with control systems (TN: 53.9%; TP: 83.9%) during stable operation. Typical-cycles variations showed that TFCWs with addition of HN-AD bacteria promoted NO3--N and NH4+-N removal respectively under hydraulic retention time (HRT) of 14 h and 8 h with slight NO2--N accumulation. Activated alumina (AA) coupled with HN-AD bacteria decreased P release and relieved its poor removal performance in CWs. Based on metagenomic taxa and functional annotation, Pseudomonas and Thauera played pivotal roles in N removal in TFCWs. Furthermore, gradient oxic environments by 8 h-HRT promoted co-occurrence of heterotrophic nitrifiers (mostly Pseudomonas stutzeri) and autotrophic nitrifiers (mostly Nitrosomonas europaea. and Nitrospira sp.) which potentially accelerated NH4+-N transformation by elevated nitrification and denitrification related genes (e.g. amoABC, hao, napA and nirS genes). Meanwhile, the addition of HN-AD bacteria stimulated nirA and gltD genes of N assimilation processes probably leading to NH4+-N directly removal. The conceptual model of multi-metabolism regulation by HN-AD process highlighted importance of glk, gap2 and PK genes in glycolysis pathway which were vital drivers to nutrients metabolism. Overall, this study provides insights into how ongoing HN-AD bacteria addition effected microbial consortia and metabolic pathways, serving theoretical basis for its engineered applications of TFCWs in decentralized domestic sewage treatment. (C) 2021 Elsevier B.V. All rights reserved.
关键词 ：
Enhanced N and P removal Enhanced N and P removal Heterotrophic nitrification-aerobic denitrification bacteria Heterotrophic nitrification-aerobic denitrification bacteria Metagenomics Metagenomics Tidal flow constructed wetlands Tidal flow constructed wetlands
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| GB/T 7714 | Tan, Xu , Yang, Yan-Ling , Li, Xing et al. Multi-metabolism regulation insights into nutrients removal performance with adding heterotrophic nitrification-aerobic denitrification bacteria in tidal flow constructed wetlands [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2021 , 796 . |
| MLA | Tan, Xu et al. "Multi-metabolism regulation insights into nutrients removal performance with adding heterotrophic nitrification-aerobic denitrification bacteria in tidal flow constructed wetlands" . | SCIENCE OF THE TOTAL ENVIRONMENT 796 (2021) . |
| APA | Tan, Xu , Yang, Yan-Ling , Li, Xing , Gao, Yu-Xi , Fan, Xiao-Yan . Multi-metabolism regulation insights into nutrients removal performance with adding heterotrophic nitrification-aerobic denitrification bacteria in tidal flow constructed wetlands . | SCIENCE OF THE TOTAL ENVIRONMENT , 2021 , 796 . |
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摘要 ：
Vacuum ultraviolet/persulfate (VUV/PS) has been a prospective method for antibiotics removal, however, the enhanced degradation mechanism is still unclear. This study compared the sulfamethazine (SMT) degradation by VUV/PS and ultraviolet/persulfate (UV/PS) processes using a photoreaction system. Results showed that the SMT degradation rate and PS activation rate by VUV/PS was 1.36 times and 1.39 times those of the conventional UV/PS process under the same dosage of PS, respectively. VUV/PS also achieved a high SMT mineralization. SO4 center dot(-) and HO center dot played important roles in the degradation of SMT by both processes, while the role of center dot O-2(-) was little. SMT concentration changed the distributions of 185 nm and 254 nm photons absorbed by solution components and altered the initiated photolysis reaction. Both processes had faster degradation rates at low initial SMT concentrations and the optimum reaction condition was at solution pH of 5. The inhibited level of the SMT degradation in both processes by four anions was in the following order: NO3- > Cl- > HCO3- > SO42-. VUV/PS process was also more efficient than UV/PS for degrading environmental (200 mu g/L) and high (5 mg/L) concentration of SMT from three kinds of typical water matrices (tap, river and lake water). Finally, ten photo-products of SMT degradation by VUV (or UV) were identified, which were mainly the oxidized products of C-N, -NH2 and S-C on SMT molecules, and four degradation pathways were proposed. Overall, these findings could provide useful insights into the application of VUV/PS in efficient antibiotics removal from water.
关键词 ：
Degradation pathway Degradation pathway Persulfate Persulfate Sulfamethazine Sulfamethazine Ultraviolet Ultraviolet Vacuum ultraviolet Vacuum ultraviolet
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| GB/T 7714 | Li, Hang , Yang, Yan-Ling , Li, Xing et al. Enhanced degradation mechanism of sulfamethazine by vacuum ultraviolet/persulfate [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2021 , 9 (6) . |
| MLA | Li, Hang et al. "Enhanced degradation mechanism of sulfamethazine by vacuum ultraviolet/persulfate" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 9 . 6 (2021) . |
| APA | Li, Hang , Yang, Yan-Ling , Li, Xing , Fan, Xiao-Yan , Wang, Nan . Enhanced degradation mechanism of sulfamethazine by vacuum ultraviolet/persulfate . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2021 , 9 (6) . |
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摘要 ：
A pilot-scale two-stage tidal flow constructed wetland (TFCW) with working volume of 0.46 m3/d packing with shale ceramsite (SC) and activated alumina (AA) was constructed (named as SC-AA-TFCW) for nutrients removal at low temperature ( © 2020 Elsevier Ltd
关键词 ：
Activated alumina Activated alumina Aerobic bacteria Aerobic bacteria Aluminum oxide Aluminum oxide Ascorbic acid Ascorbic acid Denitrification Denitrification Dissolved oxygen Dissolved oxygen Nutrients Nutrients Phosphorus Phosphorus Temperature Temperature Wetlands Wetlands
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| GB/T 7714 | Tan, Xu , Yang, Yan-Ling , Liu, Yong-Wang et al. The synergy of porous substrates and functional genera for efficient nutrients removal at low temperature in a pilot-scale two-stage tidal flow constructed wetland [J]. | Bioresource Technology , 2021 , 319 . |
| MLA | Tan, Xu et al. "The synergy of porous substrates and functional genera for efficient nutrients removal at low temperature in a pilot-scale two-stage tidal flow constructed wetland" . | Bioresource Technology 319 (2021) . |
| APA | Tan, Xu , Yang, Yan-Ling , Liu, Yong-Wang , Yin, Wen-Chao , Fan, Xiao-Yan . The synergy of porous substrates and functional genera for efficient nutrients removal at low temperature in a pilot-scale two-stage tidal flow constructed wetland . | Bioresource Technology , 2021 , 319 . |
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摘要 ：
This study explored the quantitative mechanisms of heterotrophic nitrification-aerobic denitrification (HN-AD) in a pilot-scale two-stage tidal flow constructed wetland (TFCW). The TFCW packed shale ceramsite (SC) and activated alumina (AA) at each stage, respectively, and aimed to improve decentralized wastewater treatment efficiency. In start-up phases, AA-TFCW accelerated NH4+-N decline, reaching transformation rates of 6.68 mg NH4+-N/(L.h). In stable phases, SC-AA-TFCW resisted low-temperatures (<13 degrees C), achieving stable NH4+-N and TN removal with effluents ranging 6.36-8.13 mg/L and 9.43-14.7 mg/L, respectively. The dominant genus, Ferribacterium, was the core of HN-AD bacteria, simultaneously removing NH4+-N and NO3--N by nitrate assimilation and complete denitrification (NO3--N -> N2), respectively. The quantitative associations highlighted importance of nitrification, nitrate assimilation, and denitrification in nitrogen removal. HN-AD bacteria (e.g., Lactococcus, Thauera, and Aeromonas) carried high-weight genes in quantitative associations, including napAB, nasA and gltBD, implying that HN-AD bacteria have multiple roles in SC-AA-TFCW operation.
关键词 ：
Heterotrophic nitrification-aerobic denitrifica-tion Heterotrophic nitrification-aerobic denitrifica-tion Low temperature Low temperature Nitrogen removal Nitrogen removal Quantitative ecology associations Quantitative ecology associations Tidal flow constructed wetland Tidal flow constructed wetland
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| GB/T 7714 | Tan, Xu , Yang, Yan-Ling , Liu, Yong-Wang et al. Quantitative ecology associations between heterotrophic nitrification-aerobic denitrification, nitrogen-metabolism genes, and key bacteria in a tidal flow constructed wetland [J]. | BIORESOURCE TECHNOLOGY , 2021 , 337 . |
| MLA | Tan, Xu et al. "Quantitative ecology associations between heterotrophic nitrification-aerobic denitrification, nitrogen-metabolism genes, and key bacteria in a tidal flow constructed wetland" . | BIORESOURCE TECHNOLOGY 337 (2021) . |
| APA | Tan, Xu , Yang, Yan-Ling , Liu, Yong-Wang , Li, Xing , Zhu, Wen-Bo . Quantitative ecology associations between heterotrophic nitrification-aerobic denitrification, nitrogen-metabolism genes, and key bacteria in a tidal flow constructed wetland . | BIORESOURCE TECHNOLOGY , 2021 , 337 . |
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摘要 ：
As a key parameter in the adsorption process, removal rate is not available under most operating conditions due to the time and cost of experimental testing. To address this issue, evaluation of the efficiency of NH4+ removal from stormwater by coal-based granular activated carbon (CB-GAC), a novel approach, the response surface methodology (RSM), back-propagation artificial neural network (BP-ANN) coupled with genetic algorithm (GA), has been applied in this research. The sorption process was modeled based on Box-Behnben design (BBD) RSM method for independent variables: Contact time, initial concentration, temperature, and pH; suggesting a quadratic polynomial model with p-value 2 = 0.9762. The BP-ANN with a structure of 4-8-1 gave the best performance. Compared with the BBD-RSM model, the BP-ANN model indicated better prediction of the response with R2 = 0.9959. The weights derived from BP-ANN was further analyzed by Garson equation, and the results showed that the order of the variables’ effectiveness is as follow: Contact time (31.23%) > pH (24.68%) > temperature (22.93%) > initial concentration (21.16%). The process parameters were optimized via RSM optimization tools and GA. The results of validation experiments showed that the optimization results of GA-ANN are more accurate than BBD-RSM, with contact time = 899.41 min, initial concentration = 17.35 mg/L, temperature = 15 °C, pH = 6.98, NH4+ removal rate = 63.74%, and relative error = 0.87%. Furthermore, the CB-GAC has been characterized by Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET). The isotherm and kinetic studies of the adsorption process illustrated that adsorption of NH4+ onto CB-GAC corresponded Langmuir isotherm and pseudo-second-order kinetic models. The calculated maximum adsorption capacity was 0.2821 mg/g. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
关键词 ：
Activated carbon Activated carbon Adsorption Adsorption Backpropagation Backpropagation Genetic algorithms Genetic algorithms Granular materials Granular materials Isotherms Isotherms Kinetic theory Kinetic theory Neural networks Neural networks Scanning electron microscopy Scanning electron microscopy Storms Storms
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| GB/T 7714 | Yu, Aixin , Liu, Yuankun , Li, Xing et al. Modeling and optimizing of NH4+ removal from stormwater by coal-based granular activated carbon using RSM and ANN coupled with GA [J]. | Water (Switzerland) , 2021 , 13 (5) . |
| MLA | Yu, Aixin et al. "Modeling and optimizing of NH4+ removal from stormwater by coal-based granular activated carbon using RSM and ANN coupled with GA" . | Water (Switzerland) 13 . 5 (2021) . |
| APA | Yu, Aixin , Liu, Yuankun , Li, Xing , Yang, Yanling , Zhou, Zhiwei , Liu, Hongrun . Modeling and optimizing of NH4+ removal from stormwater by coal-based granular activated carbon using RSM and ANN coupled with GA . | Water (Switzerland) , 2021 , 13 (5) . |
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