Resource Type

Journal Article 937

Year

2024 3

2023 90

2022 81

2021 91

2020 79

2019 85

2018 75

2017 55

2016 58

2015 67

2014 60

2013 36

2012 29

2011 19

2010 22

2009 22

2008 17

2007 24

2005 3

2004 2

open ︾

Keywords

adsorption 26

Adsorption 10

removal efficiency 9

Nitrogen removal 6

Removal 6

Constructed wetland 4

Lead 4

Removal efficiency 4

heavy metals 4

mechanical properties 4

mechanism 4

phosphorus removal 4

photocatalysis 4

regeneration 4

removal 4

temperature 4

Arsenic 3

NOx 3

biosorption 3

open ︾

Search scope:

排序： Display mode:

Flow synthesis of a novel zirconium-based UiO-66 nanofiltration membrane and its performance in the removal

Feichao Wu, Yanling Wang, Xiongfu Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 651-660 doi: 10.1007/s11705-019-1819-y

Abstract: prepared on an alumina hollow fiber tube by flow synthesis, and was used in an attempt to remove -nitrophenolThe -nitrophenol rejection rate for the as-prepared UiO-66 membrane applied in the removal of -nitrophenolThe result showed that the -nitrophenol rejection for the post-modified membrane was greatly improved

Keywords： UiO-66 membrane     flow synthesis     nanofiltration     <i>pi>-nitrophenol removal    

HTML PDF Collect

Inhibition of NO emission by adding antioxidant mixture in

A. PRABU,R. B. ANAND

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 238-245 doi: 10.1007/s11708-015-0356-8

Abstract: In this paper, the effect of adding an antioxidant mixture in biodiesel as fuel, in a single cylinder, direct injection compression ignition engine was experimentally investigated and the level of pollutants in the exhaust and performance characteristics of the engine were analyzed. Nine test fuels were prepared with three antioxidants, namely, Succinimide (C H NO ), , dimethyl- -phenylenediamine-dihydrochloride (C H Cl N ), and -phenyl- -phenylenediamine (C H NHC H NH ) added to neat biodiesel at 500 parts per million (ppm), 1000 ppm and 2000 ppm and the observed experimental results were compared with those of neat biodiesel and neat diesel as base fuels. The comparison showed that NO emission was reduced drastically for the test fuels with the antioxidant addition of 2000 ppm. The maximum reduction of 10% of NO emission was observed for the antioxidant mixture in neat biodiesel, with a slight increase in unburned HC, CO and smoke opacity. In addition, the obtained experimental results reveal that the addition of two antioxidants as mixture in neat biodiesel caused improved NO emission reduction for all test fuels.

Keywords： NO emission     antioxidants     Succinimide     <i>Ni>     <i>Ni>-dimethyl-<i>pi>-phenylenediamine-dihydrochloride     <i>Ni>-phenyl-<i>pi>-phenylenediamine    

HTML PDF Collect

Numerical investigation of the ultimate lateral resistance of piles in soft clay

Konstantinos P. TZIVAKOS,Michael J. KAVVADAS

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 194-200 doi: 10.1007/s11709-014-0251-0

Abstract: The paper presents a numerical study on the undrained lateral response of a single, free-head, reinforced concrete pile in soft clays. Soil conditions simulating normally consolidated clays are examined—undrained shear strength increasing with depth—and the pile-soil interaction under static lateral loading is analyzed. The nonlinear ? curves proposed in literature for soft clays are imported into a beam-on-nonlinear-Winkler-foundation simulation in order to predict the pile head lateral load—displacement curve and the distribution of the horizontal displacement and bending moment along the pile. The striking differences among these methods require further investigation via 3D finite element analyses. The determination of the ultimate soil resistance from the results of the finite element analyses aims at providing the estimation of a range of values for the ultimate soil resistance coefficient with depth and the comparison of the derived values to the corresponding ones proposed by existing methodologies.

Keywords： laterally loaded     pile     soft clay     <i>pi>?<i>yi> curves     finite element method (FEM)    

HTML PDF Collect

Chemical poison and regeneration of SCR catalysts for NO<i>xi> removal from stationary sources

Junhua LI,Yue PENG,Huazhen CHANG,Xiang LI,John C. CRITTENDEN,Jiming HAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 413-427 doi: 10.1007/s11783-016-0832-3

Abstract: Selective catalytic reduction (SCR) of NO with NH is an effective technique to remove NO from stationary sources, such as coal-fired power plant and industrial boilers. Some of elements in the fly ash deactivate the catalyst due to strong chemisorptions on the active sites. The poisons may act by simply blocking active sites or alter the adsorption behaviors of reactants and products by an electronic interaction. This review is mainly focused on the chemical poisoning on V O -based catalysts, environmental-benign catalysts and low temperature catalysts. Several common poisons including alkali/alkaline earth metals, SO and heavy metals etc. are referred and their poisoning mechanisms on catalysts are discussed. The regeneration methods of poisoned catalysts and the development of poison-resistance catalysts are also compared and analyzed. Finally, future research directions in developing poisoning resistance catalysts and facile efficient regeneration methods for SCR catalysts are proposed.

Keywords： flue gas     DeNO<i>xi>     SCR catalyst     poison and regeneration    

HTML PDF Collect

High specificity detection of Pb

Ruozhen YU,Zheng FANG,Wei MENG,Zhenguang YAN,Lina DU,Hong WANG,Zhengtao LIU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 729-736 doi: 10.1007/s11783-013-0611-3

Abstract: Only one bifunctional metal-chelator was used to prepare immunogen and coating antigen in all of the previous researches. However, the antibody-specific recognition to the spacer arm of the bifunctional metal-chelator might lower the specificity of heavy metal ions immunoassay. Two different bifunctional metal-chelators were adopted to prepare the immunogen and coating antigen respectively in our study to avoid this problem. The conjugates of keyhole limpet hemocyanin (KLH) and -SCN-Bz-DTPA-Pb were used as immunogen, whereas the conjugates of bovine serum albumin (BSA) and -NH -Bn-DTPA-Pb were used as coating antigen. Polyclonal antibodies specific to DTPA-Pb chelates were obtained from rabbits. Indirect competitive enzyme-linked immunosorbent assay (ELISA) was adopted to detect Pb ion solutions prepared by Pb standard solution and ultrapure water. In the mixing microplate, DTPA and Pb ions formed chelates and combined with specific antibodies. After incubation, the DTPA-Pb and the antibodies complex were added into the wells of the reaction microplate. The reaction microplate was coated by the conjugates of BSA and -NH -DTPA-Pb, which competed for the specific antibodies. The result signals presented a good sigmoid curve when the Pb concentration ranges from 0.01 to 100 mg·L . The IC50 of the indirect competitive ELISA is 0.23±0.04 mg·L Pb ion. The cross-reaction with Cd , Cu , Fe , Mn , Zn , and other divalent ions were less than 5%.

Keywords： <i>pi>-SCN-Bz-DTPA     <i>pi>-NH2-Bn-DTPA     lead ion     polyclonal antibody    

HTML PDF Collect

Effects of cultivation strategies on the cultivation of <i>Chlorellai> sp.

Xiaoya Liu, Yu Hong, Peirui Liu, Jingjing Zhan, Ran Yan

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1162-z

Abstract: HQ had great nutrient removal capacity under five culture strategies.HQ and its total nitrogen (TN) and total phosphorus (TP) removal in secondary effluent were investigatedThe results showed that the TN and TP removal rates ranged between 93.72%–95.82% and 92.73%–100%, respectively

Keywords： <i>Chlorellai> sp.HQ     Cultivation strategy     lipids     Nitrogen removal     Phosphorus removal     Reactive oxygen species    

HTML PDF Collect

Temporal Dynamics and Performance Association of the <i>Tetrasphaerai>-Enriched Microbiome for EnhancedBiological Phosphorus Removal Article

Hui Wang, Yubo Wang, Guoqing Zhang, Ze Zhao, Feng Ju

Engineering 2023, Volume 29, Issue 10,   Pages 168-178 doi: 10.1016/j.eng.2022.10.016

Abstract: <p>Tetrasphaera have been recently identified based on the 16S ribosomal RNA (rRNA) gene as(PAOs) in global full-scale wastewater treatment plants (WWTPs) with enhanced biological phosphorus removalThe microbiome showed enhanced nutrient removal (phosphorus removal ∼85% and nitrogen removal &simupgrading and optimization to achieve and/or enhance simultaneous biological phosphorus and nitrogen removalp>

Keywords： Enhanced biological phosphorus removal (EBPR)     Polyphosphate-accumulating organisms (PAOs)     <i>Tetrasphaerai>     Microbiome     Phosphorus recovery    

HTML PDF Collect

Occurrence and removal of

Lin WANG,Yongmei LI,Xiaoling SHANG,Jing SHEN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 519-530 doi: 10.1007/s11783-013-0610-4

Abstract: Six wastewater treatment plants (WWTPs) were investigated to evaluate the occurrence and removal ofChemically enhanced primary process (CEPP) had no effect on removal of either NDMA or NDMA FP.DMA was well removed in all the six surveyed WWTPs; its removal efficiency was greater than 97%.had better removal efficiency than conventional activated sludge process.The best removal efficiencies for TMA, DMFA and DMAB were 95%, 68% and 72%, respectively.

Keywords： <i>Ni>-nitrosodimethylamine     NDMA precursors     NDMA formation potential     biological treatment process     chemically    

HTML PDF Collect

Cytochrome P450 monooxygenase specific activity reduction in wheat

Kangxin HE,Qixing ZHOU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 270-275 doi: 10.1007/s11783-015-0813-y

Abstract: Results indicated that the specific activity of cytochrome P450 (CYP450) monooxygenase was decreasedOn the contrary, the growth related endpoints (i.e., the germination percentage, the biomass and theheight), the content related endpoints (i.e., soluble protein content and CYP450 content), and the superoxide

Keywords： roxithromycin     toxic effect     cytochrome P450 monooxygenase     soil environment     <i>Triticum aestivumi>     biomarker    

HTML PDF Collect

Recent advances in special morphologic photocatalysts for NO removal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1573-0

Abstract: <p>● Systematic information of recent progress in photocatalytic NO <i> x i> removal is provided.

Keywords： NO<i>xi> removal     Photocatalyst     Graphene     C3N4     Bi-based compounds    

HTML PDF Collect

Deciphering the Origins of P1-Induced Power Losses in Cu(In<i>xi>,Ga1–<i>xi> Article

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Engineering 2020, Volume 6, Issue 12,   Pages 1395-1402 doi: 10.1016/j.eng.2019.12.019

Abstract: <p>In this report, we show that hyperspectral high-resolution photoluminescence mapping is a powerfulSpecifically, by analyzing the standard P1 patterning line ablated before the CIGS deposition, we revealWe further rationalize the origins of this effect by comparing the topography of the P1 edge throughWe also investigate the laser-induced damage on P1 patterning lines performed after the deposition ofp>

Keywords： Cu(Inx     Ga1-x)Se2     Cell-to-module efficiency gap     P1-induced power losses     Hyperspectral photoluminescence    

HTML PDF Collect

FeNi doped porous carbon as an efficient catalyst for oxygen evolution reaction

Jun-Wei Zhang, Hang Zhang, Tie-Zhen Ren, Zhong-Yong Yuan, Teresa J. Bandosz

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 279-287 doi: 10.1007/s11705-020-1965-2

Abstract: Polymer-derived porous carbon was used as a support of iron and nickel species with an objective to obtain an efficient oxygen reduction reaction (OER) catalyst. The surface features were extensively characterized using X-ray diffraction, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy. On FeNi-modified carbon the overpotential for OER was very low (280 mV) and comparable to that on noble metal catalyst IrO . The electrochemical properties have been investigated to reveal the difference between the binary alloy- and single metal-doped carbons. This work demonstrates a significant step for the development of low-cost, environmentally-friendly and highly-efficient OER catalysts.

Keywords： OER     polystyrene salt     porous carbon     FeNi alloy     <i>pi>/<i>ni> junction    

HTML PDF Collect

Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1363-5

Abstract: <p>• A V2O5/TiO2 granular catalyst forsimultaneous removal of NO and chlorobenzene.

Keywords： NO<i>xi>     Chlorobenzene     Simultaneous removal     Kinetic study     Performance prediction     V<    

HTML PDF Collect

CeO doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction mechanistic study

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1539-2

Abstract: <p>• CeO2 doping significantly improved low-temperature NH3-SCR activity on FeTiO<i>xi>.

Keywords： NH3-SCR     CeO2 doping     Low-temperature NO<i>xi> removal     Improved redoxproperty     <i>In situi> XAFS analysis    

HTML PDF Collect

Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

PISKUNKOVA, I. B. PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 203-209 doi: 10.1007/s11705-012-1277-2

Abstract: Antifungal activity of recombinant medicinal leech destabilase-lysozyme (rec.Dest-Lys) was investigated by using fungi: , and , including yeasts and . Its antibacterial activity was investigated on gram-negative bacteria . These activities were assessed by radial agar diffusion assay, and scanning and transmission electron microscopy. Therefore, destabilase-lysozyme not only is endo-isopeptidase and lysozyme, but also has antifungal and antibacterial activities. Muramidase activity of rec.Dest-Lys disappeared after heat-treating at 90°C for 50 min without the loss of its antimicrobial activity. Furthermore we showed for the first time that the heated-up derivative of rec.Dest-Lys exhibited more potent activities against the above enumerated fungi and gram-negative bacteria than original protein.

Keywords： recombinant destabilase-lysozyme (rec.Dest-Lys)     antimicrobial activity     antifungal activity     medicinal leech     heated-up derivative of rec.Dest-Lys (T-rec.Dest-Lys)    

HTML PDF Collect

Title Author Date Type Operation

Flow synthesis of a novel zirconium-based UiO-66 nanofiltration membrane and its performance in the removal

Feichao Wu, Yanling Wang, Xiongfu Zhang

Journal Article

Inhibition of NO emission by adding antioxidant mixture in

A. PRABU,R. B. ANAND

Journal Article

Numerical investigation of the ultimate lateral resistance of piles in soft clay

Konstantinos P. TZIVAKOS,Michael J. KAVVADAS

Journal Article

Chemical poison and regeneration of SCR catalysts for NO<i>xi> removal from stationary sources

Junhua LI,Yue PENG,Huazhen CHANG,Xiang LI,John C. CRITTENDEN,Jiming HAO

Journal Article

High specificity detection of Pb

Ruozhen YU,Zheng FANG,Wei MENG,Zhenguang YAN,Lina DU,Hong WANG,Zhengtao LIU

Journal Article

Effects of cultivation strategies on the cultivation of <i>Chlorellai> sp.

Xiaoya Liu, Yu Hong, Peirui Liu, Jingjing Zhan, Ran Yan

Journal Article

Temporal Dynamics and Performance Association of the <i>Tetrasphaerai>-Enriched Microbiome for EnhancedBiological Phosphorus Removal

Hui Wang, Yubo Wang, Guoqing Zhang, Ze Zhao, Feng Ju

Journal Article

Occurrence and removal of

Lin WANG,Yongmei LI,Xiaoling SHANG,Jing SHEN

Journal Article

Cytochrome P450 monooxygenase specific activity reduction in wheat

Kangxin HE,Qixing ZHOU

Journal Article

Recent advances in special morphologic photocatalysts for NO removal

Journal Article

Deciphering the Origins of P1-Induced Power Losses in Cu(In<i>xi>,Ga1–<i>xi>

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Journal Article

FeNi doped porous carbon as an efficient catalyst for oxygen evolution reaction

Jun-Wei Zhang, Hang Zhang, Tie-Zhen Ren, Zhong-Yong Yuan, Teresa J. Bandosz

Journal Article

Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Journal Article

CeO doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction mechanistic study

Journal Article

Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

PISKUNKOVA, I. B. PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

Journal Article