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concentration 10

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Low temperature 6

low carbon 5

low carbon economy 5

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reactive oxygen species 4

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An experimental study on ignition of single coal particles at low oxygen concentrations

Wantao YANG, Yang ZHANG, Lilin HU, Junfu LYU, Hai ZHANG

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 38-45 doi: 10.1007/s11708-020-0692-1

Abstract: An experimental study on the ignition of single coal particles at low oxygen concentrations ( <21%) wasobtained at a high value, the ignition delay time decreases more rapidly as increases at the lowthe variation of are different: decreases while remains nearly constant with increasing at a lowIn addition, is less sensitive to while the ignition temperature is more sensitive to at a lowAt a low value, buoyancy plays a more significant role in sweeping away the released volatiles during

Keywords： coal particles     low oxygen concentration     ignition     ignition temperature     ignition modes    

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polyhydroxyalkanoates and glycogen transformations: Key aspects to biologic nitrogen and phosphorus removal in lowdissolved oxygen systems

Hongjing LI, Yinguang CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 283-290 doi: 10.1007/s11783-010-0243-9

Abstract: polyhydroxyalkanoates (PHA) and glycogen transformations on biologic nitrogen and phosphorus removal in lowdissolved oxygen (DO) systems.Two laboratory-scale sequencing batch reactors (SBR1 and SBR2) were operating with anaerobic/aerobic (lowglycogen transformations should be taken into account as key components for optimizing anaerobic/aerobic (low

Keywords： low dissolved oxygen (DO)     biological nitrogen and phosphorus removal     polyhydroxyalkanoates (PHA)     glycogen    

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Simultaneous nitrification and denitrification in activated sludge system under low oxygen concentration

ZHANG Peng, ZHOU Qi

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 49-52 doi: 10.1007/s11783-007-0009-1

Abstract: In order to find the suitable conditions of this process, a mixed flow activated sludge system under lowoxygen concentration is investigated, and some key control parameters are examined for nitrogen removalThe results show that SND is accessible when oxygen concentration is 0.3 0.8 mg/L.Theoretical analysis indicates that SND is a physical phenomenon and governed by oxygen diffusion in

Keywords： synthetic wastewater     accessible     Simultaneous nitrification     MLSS·d     diffusion    

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Characterization of chlorine dioxide as disinfectant for the removal of low concentration microcystins

Mingsong WU, Junli HUANG, Yuling ZHANG, Shijie YOU, Shaofeng LI, Zhilin RAN, Yu TIAN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 75-81 doi: 10.1007/s11783-011-0331-5

Abstract: The effects of reaction factors on chlorine dioxide (ClO ) for removal of low-concentration Microcystin-LRThe degradation efficiency was shown positively correlated to the concentration of ClO and reaction

Keywords： disinfection     chlorine dioxide     microcystins     reaction mechanism    

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Effect of the addition of organic carbon sources on nitrous oxide emission in anaerobic-aerobic (lowdissolved oxygen) sequencing batch reactors

Hongjing LI, Xiurong CHEN, Yinguang CHEN

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 490-499 doi: 10.1007/s11783-010-0248-4

Abstract: of additional organic carbon sources on the production of nitrous oxide (N O) in anaerobic-aerobic (lowdissolved oxygen) real wastewater treatment system was investigated.dissolved oxygen, 0.15–0.45 mg·L ) configuration.Off-gas analysis showed that N O was emitted into the atmosphere during the aerobic (low dissolved oxygendissolved oxygen) system.

Keywords： anaerobic-aerobic (low dissolved oxygen)     nitrous oxide (N2O) emitting rate     municipal wastewater    

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Control of sludge settleability and nitrogen removal under low dissolved oxygen condition

Zhaoxu PENG, Yongzhen PENG, Zhenbo YU, Xuliang LIU, Xiaoling LI, Randeng WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 884-891 doi: 10.1007/s11783-012-0408-9

Abstract: Low dissolved oxygen (DO) is an energy-saving condition in activated sludge process.The results showed that prolonging low DO aeration duration and setting pre-anoxic (anaerobic) phaseEnergy consumption by aeration reduced under low DO LFB condition, whereas the nitrification performance

Keywords： limited filamentous bulking     sequencing batch reactor     sludge settleability     sludge volume index     simultaneous nitrification denitrification    

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Investigation of solution chemistry to enable efficient lithium recovery from low-concentration lithium-containing

Chunlong Zhao, Mingming He, Hongbin Cao, Xiaohong Zheng, Wenfang Gao, Yong Sun, He Zhao, Dalong Liu, Yanling Zhang, Zhi Sun

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 639-650 doi: 10.1007/s11705-019-1806-3

Abstract: In the production of lithium-ion batteries (LIBs) and recycling of spent LIBs, a large amount of low-concentrationfound that the precipitates are formed by a zero-order reaction, and the activation energies tend to be lowThus, this research demonstrates a potential route for the effective recovery of Li from low-concentration

Keywords： lithium-containing wastewater     lithium phosphate     precipitation     impurity ion    

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Study on variational principles of smoke component concentration with water mist applying

Fang Yudong

Strategic Study of CAE 2014, Volume 16, Issue 8,   Pages 99-105

Abstract: The variational principles of oxygen, carbon dioxide and carbon monoxide concentration is disclosed andthe mathematics relations of smoke component concentration with water mist pressure and ventilationresults, it is found in the experiment that when ventilation speed exceeds 1.5kg/s the smoke component concentration

Keywords： Water mist     Oxygen     Carbon monoxide     Carbon dioxide    

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Facile fabrication of dolomite-doped biochar/bentonite for effective removal of phosphate from complex wastewaters

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1671-7

Abstract:

● Dolomite-doped biochar/bentonite was synthesized for phosphate removal.

Keywords： Dolomite doping     Phosphate adsorption     Polymeric matrix membrane     Adsorption-filtration dual functions     Low-concentration    

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Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1354-1371 doi: 10.1007/s11705-022-2286-4

Abstract: As one of the most promising anode materials with an ultrahigh specific capacity and extremely low electrodeHere, we provide an overview of the recent developments of localized high-concentration electrolytesThen, the developments of localized high-concentration electrolytes to suppress the formation of dendriticlithium, broaden the voltage window of electrolytes, enhance safety, and render low-temperature operationLastly, the remaining challenges and further possible research directions for localized high-concentration

Keywords： high-concentration electrolyte     localized high-concentration electrolyte     lithium metal battery     solid    

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PM concentration declining saves health expenditure in China

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1690-4

Abstract:

● Monthly hospitalization expenses are sensitive to increases in PM2.5 exposure.

Keywords： Air pollution     Health expenditure     PM2.5 concentration     Economic impact     Heterogeneous effect    

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Heterometallic cluster-based organic frameworks as highly active electrocatalysts for oxygen reductionand oxygen evolution reaction: a density functional theory study

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 570-580 doi: 10.1007/s11705-022-2247-y

Abstract: The oxygen reduction reaction and oxygen evolution reaction catalytic activities of heterometallic cluster-basedAmong all heterometallic clusters, Fe2Mn–Mn has a minimum overpotential of 0.35 V for oxygenreduction reaction, and Fe2Co–Co possesses the smallest overpotential of 0.32 V for oxygen

Keywords： bimetallic metal–organic frameworks     bifunctional electrocatalyst     density functional theory     oxygenreduction reaction     oxygen evolution reaction    

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Highly efficient and selective removal of phosphate from wastewater of sea cucumber aquaculture for microalgae culture using a new adsorption-membrane separation-coordinated strategy

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1720-2

Abstract:

● A new adsorption-membrane separation strategy is used for phosphate removal.

Keywords： Adsorption-membrane     Low-concentration phosphate     Zr-modified-bentonite     Recycle     Microalgal culture    

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Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 595-608 doi: 10.1007/s11709-021-0720-1

Abstract: effective notch stress approach for evaluating the fatigue strength of rib–deck welds requires notch stress concentrationTo improve the efficiency of the approach, the notch stress concentration factors for three typical fatigue-crackingto investigate the effects of multiple geometric parameters of a rib–deck weld on the notch stress concentrationregression analysis was performed to obtain the optimal regression functions for predicting the notch stress concentrationThe notch stress concentration factors estimated from the developed formulas show agree well with the

Keywords： notch stress concentration factor     rib–deck weld     parametric analysis     regression analysis     parametric    

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Research progress of adsorptive technology in processing wastewater with low concentration of uranium

Gao Junkai,Gu Ping,Zhang Guanghui,Gao Xin,Hou Li´an

Strategic Study of CAE 2014, Volume 16, Issue 7,   Pages 73-78

Abstract: The research progress in recent years on adsorption technologies in treatment wastewater with low concentration

Keywords： radioactive wastewater     uranium     adsorption     zero-valent Iron    

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Title Author Date Type Operation

An experimental study on ignition of single coal particles at low oxygen concentrations

Wantao YANG, Yang ZHANG, Lilin HU, Junfu LYU, Hai ZHANG

Journal Article

polyhydroxyalkanoates and glycogen transformations: Key aspects to biologic nitrogen and phosphorus removal in lowdissolved oxygen systems

Hongjing LI, Yinguang CHEN

Journal Article

Simultaneous nitrification and denitrification in activated sludge system under low oxygen concentration

ZHANG Peng, ZHOU Qi

Journal Article

Characterization of chlorine dioxide as disinfectant for the removal of low concentration microcystins

Mingsong WU, Junli HUANG, Yuling ZHANG, Shijie YOU, Shaofeng LI, Zhilin RAN, Yu TIAN

Journal Article

Effect of the addition of organic carbon sources on nitrous oxide emission in anaerobic-aerobic (lowdissolved oxygen) sequencing batch reactors

Hongjing LI, Xiurong CHEN, Yinguang CHEN

Journal Article

Control of sludge settleability and nitrogen removal under low dissolved oxygen condition

Zhaoxu PENG, Yongzhen PENG, Zhenbo YU, Xuliang LIU, Xiaoling LI, Randeng WANG

Journal Article

Investigation of solution chemistry to enable efficient lithium recovery from low-concentration lithium-containing

Chunlong Zhao, Mingming He, Hongbin Cao, Xiaohong Zheng, Wenfang Gao, Yong Sun, He Zhao, Dalong Liu, Yanling Zhang, Zhi Sun

Journal Article

Study on variational principles of smoke component concentration with water mist applying

Fang Yudong

Journal Article

Facile fabrication of dolomite-doped biochar/bentonite for effective removal of phosphate from complex wastewaters

Journal Article

Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Journal Article

PM concentration declining saves health expenditure in China

Journal Article

Heterometallic cluster-based organic frameworks as highly active electrocatalysts for oxygen reductionand oxygen evolution reaction: a density functional theory study

Journal Article

Highly efficient and selective removal of phosphate from wastewater of sea cucumber aquaculture for microalgae culture using a new adsorption-membrane separation-coordinated strategy

Journal Article

Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Journal Article

Research progress of adsorptive technology in processing wastewater with low concentration of uranium

Gao Junkai,Gu Ping,Zhang Guanghui,Gao Xin,Hou Li´an

Journal Article