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Atmospheric Contributions of Nitrate to Stormwater Runoff from Two Urban Watersheds 大气中硝酸盐对两个城市流域雨水径流的贡献
Journal of the Environmental Engineering Division Pub Date : 2018-02-01 DOI: 10.1061/(ASCE)EE.1943-7870.0001323
Darshan Baral, J. Fisher, Michael J. Florek, B. Dvorak, D. Snow, D. Admiraal
{"title":"Atmospheric Contributions of Nitrate to Stormwater Runoff from Two Urban Watersheds","authors":"Darshan Baral, J. Fisher, Michael J. Florek, B. Dvorak, D. Snow, D. Admiraal","doi":"10.1061/(ASCE)EE.1943-7870.0001323","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0001323","url":null,"abstract":"AbstractTwo independent methods were used to assess if atmospheric deposition was a major source of nitrate nitrogen (NO3-N) to stormwater in two small urban watersheds located in Lincoln, NE. Firs...","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77024775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Forward Osmosis: Mass Transmission Coefficient-Based Models for Evaluation of Concentration Polarization under Different Conditions 正向渗透:不同条件下基于传质系数的浓度极化评价模型
Journal of the Environmental Engineering Division Pub Date : 2018-02-01 DOI: 10.1061/(ASCE)EE.1943-7870.0001286
K. Rong, Tian C. Zhang
{"title":"Forward Osmosis: Mass Transmission Coefficient-Based Models for Evaluation of Concentration Polarization under Different Conditions","authors":"K. Rong, Tian C. Zhang","doi":"10.1061/(ASCE)EE.1943-7870.0001286","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0001286","url":null,"abstract":"AbstractIn the past, forward osmosis (FO) models were developed to evaluate the effects of concentration polarization (CP), including external CP (ECP) and internal CP (ICP), on FO performance. How...","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74825027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Nitrate Reduction by Surface-Bound Fe(II) on Solid Surfaces at Near-Neutral pH and Ambient Temperature 在接近中性的pH和环境温度下，固体表面表面结合的Fe(II)还原硝酸盐
Journal of the Environmental Engineering Division Pub Date : 2016-11-01 DOI: 10.1061/(ASCE)EE.1943-7870.0001130
Yong H. Huang, Tian C. Zhang
{"title":"Nitrate Reduction by Surface-Bound Fe(II) on Solid Surfaces at Near-Neutral pH and Ambient Temperature","authors":"Yong H. Huang, Tian C. Zhang","doi":"10.1061/(ASCE)EE.1943-7870.0001130","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0001130","url":null,"abstract":"AbstractNitrate reduction by Fe(II) species was previously known to occur only in Cu2+-catalyzed and alkaline conditions or at high temperatures. In this study, a reactant system consisting of nitrate, iron oxide particles, and Fe(II) (in different forms) was used to study possible reactions between nitrate and Fe(II). At near-neutral pH, nitrate could not be reduced by aqueous Fe(II) species or by Fe(OH)2 gel. In the presence of magnetite (Fe3O4) particles, however, a significant amount of Fe2+ could be adsorbed onto an Fe3O4 surface at pH=7.3 and became surface-bound Fe2+(S.B. Fe2+), which could react with nitrate via the reaction: 12 S.B. Fe2++NO3−+13 H2O→4 Fe3O4↓+NH4++22 H+. The reaction stopped when pH decreased to <6.8. Introducing trace amount of O2 or Fe3+(aq) into the nitrate-Fe2+ reactant system was as effective as seeding magnetite particles in triggering the nitrate-Fe(II) reaction, suggesting that lepidocrocite (γ-FeOOH) is a precursor for initiating the nitrate-Fe(II) reaction. Hematite and ...","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77077748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Sorption and Desorption of Testosterone at Environmentally Relevant Levels: Effects of Aquatic Conditions and Soil Particle Size Fractions 睾酮在环境相关水平上的吸附和解吸:水生条件和土壤粒径分数的影响
Journal of the Environmental Engineering Division Pub Date : 2016-01-01 DOI: 10.1061/(ASCE)EE.1943-7870.0001001
Yong Qi, Tian C. Zhang
{"title":"Sorption and Desorption of Testosterone at Environmentally Relevant Levels: Effects of Aquatic Conditions and Soil Particle Size Fractions","authors":"Yong Qi, Tian C. Zhang","doi":"10.1061/(ASCE)EE.1943-7870.0001001","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0001001","url":null,"abstract":"AbstractSorption and desorption have been found to be critical in the fate and transport of hormones in soils. Previous study indicated that the sorption and desorption properties of soil particles of different size fractions associated with hormones were very different. However, the interaction mechanisms of hormones with these soil particles are still unclear. This study investigated the influence of aquatic conditions [e.g., temperature, hydrogen ion concentration (pH), ionic strength, soil/water ratio, organic matter] on the sorption and desorption of soil particles of three size fractions [i.e., sand (0.425–0.075 mm), silt (0.045–0.002 mm), and clay (0.6–2  μm)] associated with testosterone at environmentally relevant concentrations (i.e., 20–150  ng/L) in batch reactors. The results indicate that lower temperature will facilitate sorption but hinder desorption of testosterone onto/from all of the soil particles. Lower pH and higher organic matter content will favor the sorption of testosterone onto ...","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79851704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Oxidative Degradation of Quinoline Using Nanoscale Zero-Valent Iron Supported by Granular Activated Carbon 颗粒活性炭负载纳米零价铁氧化降解喹啉的研究
Journal of the Environmental Engineering Division Pub Date : 2016-01-01 DOI: 10.1061/(ASCE)EE.1943-7870.0000981
Vijayalakshmi Gosu, B. Gurjar, Tian C. Zhang, R. Surampalli
{"title":"Oxidative Degradation of Quinoline Using Nanoscale Zero-Valent Iron Supported by Granular Activated Carbon","authors":"Vijayalakshmi Gosu, B. Gurjar, Tian C. Zhang, R. Surampalli","doi":"10.1061/(ASCE)EE.1943-7870.0000981","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0000981","url":null,"abstract":"AbstractThe nano zero-valent iron supported granular activated carbon (nFe0/GAC or 2.5%-nFe0/GAC) was synthesized by the liquid chemical reduction method and further used for the oxidative degradation of quinoline. The 2.5%-nFe0/GAC was characterized by various techniques such as Brunauer-Emmett-Teller (BET) surface area, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and field emission scanning electron microscopy (FE-SEM). It was ascertained that iron is of zero state and well dispersed on GAC. The 2.5%-nFe0/GAC exhibited an H4 type hysteresis loop with a surface area of ∼240  m2/g. The kinetic study reveals that quinoline degradation follows the pseudo–first order. At optimum conditions of pH=4, m=7.5  g/L, Co=100  mg/L, and T=303  K, it was observed that (1) ∼93% of quinoline and ∼63% of total organic carbon (TOC) removal is obtained, (2) iron leaching is within the permissible limit, and (3) it requires ∼63±5  min for completion of the half-life of quinoline. The activation ...","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72813065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Wavy Subsurface Flow and Vertical Flow Constructed Wetlands: Effects of Aeration and Wastewater Composition on Wetland Clogging 波浪潜流和垂直流人工湿地:曝气和废水组成对湿地堵塞的影响
Journal of the Environmental Engineering Division Pub Date : 2015-09-01 DOI: 10.1061/(ASCE)EE.1943-7870.0000948
Yongzheng Ren, Q. Gong, Tian C. Zhang, Jianxiong Kang, Dongqi Liu
{"title":"Wavy Subsurface Flow and Vertical Flow Constructed Wetlands: Effects of Aeration and Wastewater Composition on Wetland Clogging","authors":"Yongzheng Ren, Q. Gong, Tian C. Zhang, Jianxiong Kang, Dongqi Liu","doi":"10.1061/(ASCE)EE.1943-7870.0000948","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0000948","url":null,"abstract":"AbstractIn this study, effects of aeration and wastewater composition were evaluated on the clogging process in four laboratory-scale wavy subsurface-flow and vertical-flow constructed wetlands (WSVFCWs) used for secondary and tertiary treatment. The relationship between the accumulated solid material and infiltration rate, the content and particle size distribution as well as the ratio of organic and inorganic matter of the accumulated material in the filter media were determined, and the mechanisms of clogging were elucidated. The clogging mainly occurred in the upper 0–40 cm layer, and the accumulated material decreased with filter depth (along the flow direction). The main particle size contributing to clogging was ∼40  μm in the WSVFCWs for secondary treatment and >110  μm in those for tertiary treatment. The accumulated material had 30–40% of organic matter. The clogging mechanisms varied as the composition of influent and aeration conditions are different in WSVFCWs. Aeration promoted the growth of...","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85638015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Contributions of Internal and External Fouling to Transmembrane Pressure in MBRs: Experiments and Modeling mbr内、外污染对跨膜压力的影响:实验与模拟
Journal of the Environmental Engineering Division Pub Date : 2015-06-01 DOI: 10.1061/(ASCE)EE.1943-7870.0000925
Meng Hu, Tian C. Zhang, J. Stansbury, You Zhou, Han Chen, J. Neal
{"title":"Contributions of Internal and External Fouling to Transmembrane Pressure in MBRs: Experiments and Modeling","authors":"Meng Hu, Tian C. Zhang, J. Stansbury, You Zhou, Han Chen, J. Neal","doi":"10.1061/(ASCE)EE.1943-7870.0000925","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0000925","url":null,"abstract":"AbstractThis paper reports a new approach to understanding membrane fouling in membrane bioreactors (MBR). The foulants were categorized into those inside the membrane (internal fouling) and those on the membrane forming the so-called external fouling layer (external fouling). The volumes of the internal and external foulants were determined with the aid of a confocal laser scanning microscope (CLSM) after staining the foulants. Thus, the porosities of both the membrane and the external fouling layer were calculated, which explained the contributions of internal and external fouling to transmembrane pressure (TMP) from the standpoint of fundamental filtration theory. The categorical method indicates that external fouling may dominate the long-term operation of MBR with the formation of the external fouling layer, whereas internal fouling, in the form of pore constriction, may cause both initial and final TMP jumps under the operating conditions in the current study. In addition, a mathematical model was d...","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73689958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Influence of soil properties and test conditions on sorption and desorption of testosterone 土壤性质和试验条件对睾酮吸附和解吸的影响
Journal of the Environmental Engineering Division Pub Date : 2015-01-20 DOI: 10.1061/(ASCE)EE.1943-7870.0000937
Rui-ping Ma, Tian C. Zhang, S. Bartelt-Hunt, Yong Qi, W. Kranz, D. Snow, T. Mader, C. Shapiro, D. Shelton, S. V. Donk, D. Tarkalson, S. Ensley
{"title":"Influence of soil properties and test conditions on sorption and desorption of testosterone","authors":"Rui-ping Ma, Tian C. Zhang, S. Bartelt-Hunt, Yong Qi, W. Kranz, D. Snow, T. Mader, C. Shapiro, D. Shelton, S. V. Donk, D. Tarkalson, S. Ensley","doi":"10.1061/(ASCE)EE.1943-7870.0000937","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0000937","url":null,"abstract":"In this study, batch sorption and desorption experiments were conducted for testosterone using four agricultural soils and five clay minerals. Significant differences in sorption behavior were observed between abiotic and biotic systems. The Freundlich sorption coefficient Kf (µg per g)/(µg per mL) ranged from 8.53 to 74.46 for soils and from 35.28 to 1243 for clays. The maximum sorption capacity (µg per g) of soils ranged from 25.25 to 440.61 for soils and 168.46 to 499.84 for clays. Correlation of sorption model parameters with soil properties indicated that both clay content and soil organic matter are important variables in predicting testosterone sorption behavior. Observed testosterone desorption from agricultural soils ranged from approximately 14 to 100 percent after 3 desorption cycles, and the desorption percentage decreased as the initial testosterone concentration decreased. Temperature, ionic strength, the water/soil ratio and soil depth were determined to influence sorption and desorption of testosterone. Desorption significantly increase with the soil depth and with the increase in the water to soil ratio. Temperature had an inverse effect on the sorption capacity of the soils tested. Thermodynamic calculations showed that the enthalpy change of the soils tested were the range of 12.9-20.7 kJ per mol, indicating weak interaction between testosterone and soil. Our results suggest that additional studies on how soil particles with different size fractions affect hormones fate and transport are needed in order to determine the potential risk of testosterone leaching or runoff.","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84717439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Performance of Strong Ionic Hydrogels Based on 2-Acrylamido-2-Methylpropane Sulfonate as Draw Agents for Forward Osmosis 基于2-丙烯酰胺-2-甲基丙烷磺酸盐的强离子水凝胶正向渗透性能研究
Journal of the Environmental Engineering Division Pub Date : 2014-12-01 DOI: 10.1061/(ASCE)EE.1943-7870.0000875
Huayong Luo, Qin Wang, Tao Tao, Tian C. Zhang, Aijiao Zhou
{"title":"Performance of Strong Ionic Hydrogels Based on 2-Acrylamido-2-Methylpropane Sulfonate as Draw Agents for Forward Osmosis","authors":"Huayong Luo, Qin Wang, Tao Tao, Tian C. Zhang, Aijiao Zhou","doi":"10.1061/(ASCE)EE.1943-7870.0000875","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0000875","url":null,"abstract":"AbstractWhile forward osmosis (FO) has great potential to be the next generation water treatment technology, it is constrained by the development of ideal draw agents and membranes. Herein, a series of copolymerized hydrogels based on strong ionic monomer sodium 2-acrylamido-2-methylpropane sulfonate (AMPS-Na) and thermosensitive monomer N-isopropylacrylamide (NIPAM) have been synthesized and used for the first time as draw agents in the FO process. The effects of the composition of poly(NIPAM-co-AMPS-Na) [P(NIPAM-co-AMPS)] hydrogels and operational conditions including draw agent concentrations, temperature, membrane orientation, salinity of feed solution, velocity of feed solution, and running times on the FO performance have been evaluated systematically. The results demonstrate that the water flux increases with increases of the content of AMPS-Na incorporated into the hydrogel and hydrogel concentration in the draw solution, e.g., from 0.40 LMH rising up to 2.85 LMH. Besides, the water flux increases...","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82470862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 32
Contribution of Water and Wastewater Infrastructures to Urban Energy Metabolism and Greenhouse Gas Emissions in Cities in India 水和废水基础设施对印度城市能源代谢和温室气体排放的贡献
Journal of the Environmental Engineering Division Pub Date : 2013-05-01 DOI: 10.1061/(ASCE)EE.1943-7870.0000661
L. Miller, A. Ramaswami, R. Ranjan
{"title":"Contribution of Water and Wastewater Infrastructures to Urban Energy Metabolism and Greenhouse Gas Emissions in Cities in India","authors":"L. Miller, A. Ramaswami, R. Ranjan","doi":"10.1061/(ASCE)EE.1943-7870.0000661","DOIUrl":"https://doi.org/10.1061/(ASCE)EE.1943-7870.0000661","url":null,"abstract":"This is a first analysis of end-use energy intensity (EUEI) and greenhouse gas (GHG) emissions in water and wastewater (W/WW) sectors in India, and it examines their contribution to community-wide energy use and GHG emissions in cities in India. EUEI and related GHG emissions for W/WW infrastructures in Indian cities were analyzed and compared with data for cities in the United States. Data gathered by ICLEI-South Asia, Government of India, and the University of Colorado Denver were used to conduct this analysis. W/WW infrastructures were found to contribute 3-16% of community-wide electricity use and GHG emissions for 16 cities in India; for another 23 cities, the proportion was less than 3%. EUEI for drinking water supply and wastewater treatment averaged 0.3 � 0.2 W· h=Lðn ¼ 7Þ and 0.1 � 0.05 W·h =Lðn ¼ 5Þ, respectively. EUEI for drinking water provision was more than double that for wastewater treatment, the reverse of typical cities in Colorado, likely a result of poorer source water quality in India. In general, although the sample size of Indian W/WW plants is small, EUEI in India appears to be much smaller than in the United States for both water and wastewater sectors based on this first review of quantitative data. DOI: 10.1061/(ASCE)EE.1943-7870.0000661. © 2013 American Society of Civil Engineers. CE Database subject headings: Wastewater management; Urban areas; Emissions; India; Water management. Author keywords: Urban metabolism; End-use energy intensity; Greenhouse gas; Water infrastructure; Wastewater; Developing cities.","PeriodicalId":17335,"journal":{"name":"Journal of the Environmental Engineering Division","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72622164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 39
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