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学者姓名:杨艳玲
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Abstract :
In this work, a new ultrasound-assisted heterogeneous activation of persulfate by nano zero-valent iron (USnZVI/PS) technique was employed to regenerate powder activated carbon (PAC) that had been saturated with chloramphenicol (CAP). US-nZVI/PS process can successfully regenerate the CAP-saturated PAC. Response surface methodology was effectively performed and under the specific optimum regeneration conditions the actual experimental regeneration efficiency of PAC reached 93.96%. As evidenced by the results of EPR and quenching experiments, both SO4 center dot- and center dot OH were identified as the main reactive species responsible for the regeneration process. The regeneration process considerably promoted the generation of oxygen-derived surface functional groups.
Keyword :
Activated carbon Activated carbon Nano zero-valent iron Nano zero-valent iron Ultrasound Ultrasound Persulfate Persulfate In-situ regeneration In-situ regeneration
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GB/T 7714 | Zhang, Tingting , Yang, Yanling , Li, Xing et al. Ultrasound-assisted heterogeneous activation of persulfate by nano zero-valent iron (nZVI) for the PAC in-situ regeneration [J]. | APPLIED CATALYSIS O: OPEN , 2024 , 191 . |
MLA | Zhang, Tingting et al. "Ultrasound-assisted heterogeneous activation of persulfate by nano zero-valent iron (nZVI) for the PAC in-situ regeneration" . | APPLIED CATALYSIS O: OPEN 191 (2024) . |
APA | Zhang, Tingting , Yang, Yanling , Li, Xing , Zhou, Zhiwei , Wei, Bigui . Ultrasound-assisted heterogeneous activation of persulfate by nano zero-valent iron (nZVI) for the PAC in-situ regeneration . | APPLIED CATALYSIS O: OPEN , 2024 , 191 . |
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Abstract :
Rural sewage treatment facilitates nitrogen and phosphorus removal yet can be costly. To address this challenge, a cost-effective embedding material mainly consisting of heterotrophic nitrifying bacteria, activated alumina (AA), and a solid carbon source (HPMC) was applied to a tidal flow constructed wetlands (TFCWs); aimed at stable nitrogen and phosphorus removal under low carbon-to-nitrogen (C/N) ratios. The TFCWs could be shortened to 16 d of startup duration time compared with the control group; and improved the ammonia nitrogen (NH4+-N), total nitrogen (TN), and total phosphorus (TP) removal efficiencies to 98 %, 93 %, and 68 %, respectively. Also, effluent NH4+-N, TN, and TP in the enhanced TFCWs could be stable at 0.52 +/- 0.18, 1.23 +/- 0.45, and 0.75 +/- 0.25 mg/L, respectively. Microbial community analysis revealed that AA and HPMC were enriched Pseudomonas sp., which potentially accelerated the NH4+-N assimilation pathway and phosphate biological removal. Embedding materials-TFCWs can provide new solutions for integrated rural sewage technology.
Keyword :
removal removal Simultaneous nitrogen and phosphorus Simultaneous nitrogen and phosphorus Low C/N ratio Low C/N ratio Heterotrophic nitrifying bacteria Heterotrophic nitrifying bacteria Embedding Embedding Tidal flow constructed wetland Tidal flow constructed wetland
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GB/T 7714 | Wang, Yan-Lin , Yang, Yan-Ling , Tan, Xu et al. Enhanced nutrients removal from low C/N ratio rural sewage by embedding heterotrophic nitrifying bacteria and activated alumina in a tidal flow constructed wetland [J]. | BIORESOURCE TECHNOLOGY , 2024 , 413 . |
MLA | Wang, Yan-Lin et al. "Enhanced nutrients removal from low C/N ratio rural sewage by embedding heterotrophic nitrifying bacteria and activated alumina in a tidal flow constructed wetland" . | BIORESOURCE TECHNOLOGY 413 (2024) . |
APA | Wang, Yan-Lin , Yang, Yan-Ling , Tan, Xu , Li, Xing , Zhao, Li . Enhanced nutrients removal from low C/N ratio rural sewage by embedding heterotrophic nitrifying bacteria and activated alumina in a tidal flow constructed wetland . | BIORESOURCE TECHNOLOGY , 2024 , 413 . |
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Abstract :
Surfactants are increasingly used in systems that come into contact with the human body, such as food, pharmaceuticals, cosmetics and personal hygiene products. Increasing attention is being devoted to the toxic effects of surfactants in various human contact formulations, as well as the removal of residual surfactants. In the presence of ozone (O-3), anion surfactants-a characteristic micro-pollutant-such as sodium dodecylbenzene sulfonate (SDBS) in greywater, can be removed using radical advanced oxidation. Herein, we report a systematic study of the SDBS degradation effect of O-3 activated by vacuum ultraviolet (VUV) irradiation and the influence of water composition on VUV/O-3, and determined the contribution of radical species. We show a synergistic effect of VUV and O-3, while VUV/O-3 reached a higher mineralization (50.37%) than that of VUV (10.63%) and O-3 (29.60%) alone. The main reactive radicals of VUV/O-3 were HO center dot. VUV/O-3 had an optimal pH of 9. The addition of SO42- had almost no effect on the degradation of SDBS by VUV/O-3, Cl- and HCO3- slightly reduced the reaction rate, and NO3- had a significant inhibition on the degradation. In total, SDBS had three isomers, with which the three degradation pathways were very comparable. Compared with SDBS, the toxicity and harmfulness of the degradation by-products of the VUV/O-3 process decreased. Additionally, VUV/O-3 could degrade synthetic anion surfactants from laundry greywater effectively. Overall, the results show the potential of VUV/O-3 in safeguarding humans from residual surfactant hazards.
Keyword :
ozone ozone surfactants surfactants vacuum ultraviolet vacuum ultraviolet toxicological analysis toxicological analysis
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GB/T 7714 | Li, Hang , Yang, Yanling , Li, Xing et al. Remediation of Surfactants Used by VUV/O-3 Techniques: Degradation Efficiency, Pathway and Toxicological Analysis [J]. | MOLECULES , 2023 , 28 (8) . |
MLA | Li, Hang et al. "Remediation of Surfactants Used by VUV/O-3 Techniques: Degradation Efficiency, Pathway and Toxicological Analysis" . | MOLECULES 28 . 8 (2023) . |
APA | Li, Hang , Yang, Yanling , Li, Xing , Ullah, Habib . Remediation of Surfactants Used by VUV/O-3 Techniques: Degradation Efficiency, Pathway and Toxicological Analysis . | MOLECULES , 2023 , 28 (8) . |
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Abstract :
A novel visible photocatalysis nanomaterials Bi2O3/rGO/TiO2 (BRGT) was combined with polyethersulfone membrane (PES) and ceramic membrane (CM), respectively, to investigate the natural organic matter (NOM) removal performance, membrane fouling behavior and interfacial interactions. The results showed that NOM removal mainly by superoxide radical-dominated photocatalysis followed by membrane rejection enhancing the removal of fluorescent humic and proteins. Compared with PES, CM could more effectively retain the low molecular weight acidic intermediates and transitional or/and hydrophilic organic fractionations generated by photocatalysis. The mixture of NOM with BRGT (without photocatalysis) reduced the reversible fouling of the PES, causing an increase in the interfacial energy barrier of the fouling layer, while the opposite phenomenon was observed for CM. The photocatalysis time affected the membrane fouling, with short photocatalysis times (5 min) causing an increase in irreversible fouling. Extending the photocatalysis time, the interfacial interaction of the PES dominated by Lewis acid-base repulsive interaction gradually increased. And the gradual decreased of interfacial interaction of CM dominated by Lewis acid-base and Lifshitz-van der Waals attractive interactions reduced the possibility of reversible and irreversible fouling, respectively. This study provided a deeper mechanistic understanding for the application of a novel photocatalyst in combination with ultrafiltration.
Keyword :
Visible light photocatalysis Visible light photocatalysis Polyethersulfone membrane Polyethersulfone membrane Membrane fouling Membrane fouling Interface energy Interface energy Ceramic membrane Ceramic membrane
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GB/T 7714 | Yu, Rui , Yang, Yanling , Tian, Liping et al. Revealing the membrane fouling behavior and interfacial interaction mechanism in a combined visible light photocatalysis-ultrafiltration system for advanced purification of NOM [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2023 , 57 . |
MLA | Yu, Rui et al. "Revealing the membrane fouling behavior and interfacial interaction mechanism in a combined visible light photocatalysis-ultrafiltration system for advanced purification of NOM" . | JOURNAL OF WATER PROCESS ENGINEERING 57 (2023) . |
APA | Yu, Rui , Yang, Yanling , Tian, Liping , Li, Xing , Liu, Chunjiao , Sun, Tianjie et al. Revealing the membrane fouling behavior and interfacial interaction mechanism in a combined visible light photocatalysis-ultrafiltration system for advanced purification of NOM . | JOURNAL OF WATER PROCESS ENGINEERING , 2023 , 57 . |
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Abstract :
Pre-ozonation is often used as an effective method to assist coagulation in removing organic contaminants. In this study, a new process that combining ozone (O-3) with vacuum ultraviolet (VUV/UV) process (VUV/UV/O-3) is investigated to enhance the removal of organic matters in greywater from public buildings or household. The influence of organic characteristics (molecular weight distribution, hydrophobicity, and fluorescence) in grey water on VUV/UV/O-3 enhanced coagulation has not been fully studied. Herein, organic matters of greywater were separated and classified, and fates of organic fractions by VUV/UV/O-3 enhanced coagulation were clarified. Greywater contains tryptophan-like and tyrosine-like proteins, and terrestrially derived humic-like substances. The highest UV254, LAS, DOC and CODCr removal efficiency from greywater could reach up to 47.54%, 58.92%, 17.96% and 15.76% in VUV/UV/O-3 enhanced coagulation, respectively. The removal efficiency of tryptophanlike and tyrosine-like in filtrates of varied molecular weight ranges by VUV/UV/O-3 enhanced coagulation was 93.59%-98.13% and 89.86%-95.53%, respectively. VUV/UV/O-3 enhanced coagulation was effective for the removal of bio-polymers, humic substances and low molecular weight acid <=& nbsp;30 kDa, while it was insignificant for that of 0.22 mu m 100 kDa. Particle size of flocs increased significantly in filtrates obtained from increasing membrane pore size, indicating that macromolecular organic matter was more likely to form flocs. Finally, the VUV/UV/O-3 could improve coagulation on the removal of varied organic pollutants and improve sedimentation by changing the flaky flocs to dense ones. Therefore, the results demonstrate VUV/UV/O-3 is an effective pre oxidation method to enhance the effect of coagulation on greywater treatment.
Keyword :
Vacuum ultraviolet Vacuum ultraviolet Pre-oxidation Pre-oxidation Coagulation Coagulation Ozone Ozone Greywater Greywater
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GB/T 7714 | Li, Hang , Yang, Yanling , Ren, Jiawei et al. Fate of organic fractions of greywater in combined process of vacuum-ultraviolet (VUV/UV)/ozone pre-oxidation with enhanced coagulation [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2022 , 10 (3) . |
MLA | Li, Hang et al. "Fate of organic fractions of greywater in combined process of vacuum-ultraviolet (VUV/UV)/ozone pre-oxidation with enhanced coagulation" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 10 . 3 (2022) . |
APA | Li, Hang , Yang, Yanling , Ren, Jiawei , Zhou, Zhiwei , Li, Xing , Liu, Yuankun et al. Fate of organic fractions of greywater in combined process of vacuum-ultraviolet (VUV/UV)/ozone pre-oxidation with enhanced coagulation . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2022 , 10 (3) . |
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Abstract :
Aluminum (Al) as the third most element in the crust, with its exposure to increasing acid precipitation, has posed a risk in surface water contamination. In this work, a pilot-scale micro-flocculation/gravity-driven membrane (C-GDM) ultrafiltration process was performed without backwashing, flushing, or chemical cleaning of the membrane, to investigate the removal of aluminum species from feed water artificially polluted with Al. Two types of Fe-based coagulants were compared: FeCl3 and polyferric sulfate (PFS). The results revealed that the water flux stabilized during 60-day operation at 5.3 Lm(-2) h(-1) with a low pressure of 70 mbar. Compared with FeCl3, the C-GDM ultrafiltration combined with PFS performed better for removal of total Al, reaching 75.0% removal. The average Al concentration in the produced effluent was less than 0.1 mgL(-1), which is lower than world health organization (WHO) standard for drinking water quality (0.2 mgL(-1)). The average removal efficiencies of particulate Al and dissolved inorganically bound Al were the best at 94.9% and 92.6% respectively, while that of polymeric colloidal, strongly bound Al was the worst, being removed at only 32.9%. Additionally, the contribution of Al-species removal by the individual coagulation step was determined, and this was compared to stand-alone ultrafiltration and to the combined coagulation/ultrafiltration process. The findings of this work led to recommendations for practical application that C-GDM ultrafiltration process is a promising technology for Al removal, which can assist in the development of strategies to solve the problem of Al pollution for decentralized water supplies.
Keyword :
Gravity-driven membrane (GDM) Gravity-driven membrane (GDM) Fe-based coagulants Fe-based coagulants Micro-flocculation Micro-flocculation Aluminum removal Aluminum removal
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GB/T 7714 | Yue, Xiao , Yang, Yanling , Li, Xing et al. Effect of Fe-based micro-flocculation combined with gravity-driven membrane ultrafiltration on removal of aluminum species during water treatment [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2021 , 9 (6) . |
MLA | Yue, Xiao et al. "Effect of Fe-based micro-flocculation combined with gravity-driven membrane ultrafiltration on removal of aluminum species during water treatment" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 9 . 6 (2021) . |
APA | Yue, Xiao , Yang, Yanling , Li, Xing , Ren, Jiawei , Zhou, Zhiwei , Zhang, Yu et al. Effect of Fe-based micro-flocculation combined with gravity-driven membrane ultrafiltration on removal of aluminum species during water treatment . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2021 , 9 (6) . |
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Abstract :
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.
Keyword :
RhB RhB Photo-Fenton Photo-Fenton Fe doped g-C3N4 Fe doped g-C3N4 Density functional theory (DFT) Density functional theory (DFT)
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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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Abstract :
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
Keyword :
Dissolved oxygen Dissolved oxygen Phosphorus Phosphorus Denitrification Denitrification Temperature Temperature Aerobic bacteria Aerobic bacteria Nutrients Nutrients Wetlands Wetlands Aluminum oxide Aluminum oxide Activated alumina Activated alumina Ascorbic acid Ascorbic acid
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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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Abstract :
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。
Keyword :
pH pH 给水厂 给水厂 混凝剂 混凝剂 铝超标 铝超标 铝形态 铝形态
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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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Abstract :
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...
Keyword :
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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