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Characteristics and mixing state of S-rich particles in haze episodes in Beijing

Jun Hu, Fengkui Duan, Kebin He, Yongliang Ma, Shuping Dong, Xiande Liu

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0861-y

Abstract: Four types of S-rich particles are identified by SEM/FESEM-EDX With on-line observation, characteristicsof S-rich particles are discovered Intensities of formation of S-rich particles are seasonally differentFour major types of S-rich particles, including secondary CaSO particles (mainly observed in summer), S-rich mineral particles (SRM), S-rich water droplets (SRW) and (C, O, S)-rich particles (COS) wereOn the basis of the S-rich particles’ relative abundances, S concentrations and their relationships with

Keywords： S-rich particles     Morphology     Element distribution     Mixing state    

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Online single particle analysis of chemical composition and mixing state of crop straw burning particles

Juntao HUO,Xiaohui LU,Xinning WANG,Hong CHEN,Xingnan YE,Song Gao,Deborah S.

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 244-252 doi: 10.1007/s11783-015-0768-z

Abstract: Fresh straw burning (SB) particles were generated in the laboratory by the combustion of rice straw andBased on the mass spectral patterns, the SB particles were clustered into four major types: Salt, OrganicCarbon (OC), Elemental Carbon (EC), and internally mixed particles of EC and OC (EC-OC).In addition, particles containing ash, polycyclic aromatic hydrocarbons, heavy metals or nicotine wereThe marker ions for SB particles were optimized and applied to identify the SB particles in the ambient

Keywords： crop straw burning particles     mixing state     aging process     ATOFMS     ion markers    

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Orderly decorated nanostructural photoelectrodes with uniform spherical TiO

Bakhshayesh,S. S. Azadfar

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 532-540 doi: 10.1007/s11705-015-1549-8

Abstract: nanostructural electrode made of 20-nm-diameter nanoparticles, which orderly decorated with 2-µm TiO particles

Keywords： dye-sensitized solar cell     uniform particles     TiO2 gel process     light harvesting    

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Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 506-510 doi: 10.1007/s11708-013-0275-5

Abstract: The collision frequency function for aerosol particles has already been calculated for the free moleculeinfluence of internal force fields such as magnetic force, electric force and molecular forces, created by particlesthemselves, recalculated the collision frequency in the case of particles much smaller than the mean

Keywords： aerosol particles     collision frequency function     coagulation    

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Polymer-nanoinorganic particles composite membranes: a brief overview

Zhen-liang XU, Li-yun YU, Ling-feng HAN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 318-329 doi: 10.1007/s11705-009-0199-0

Abstract: Polymer-nanoinorganic particles composite membranes present an interesting approach for improving theThe preparations and structures of polymer-nanoinorganic particles composite membranes and their unique

Keywords： polymer     nanoinorganic particles     composite membranes    

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Transparent exopolymer particles (TEPs)-associated protobiofilm: A neglected contributor to biofouling

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1361-7

Abstract:

• Bacteria could easily and quickly attached onto TEP to form protobiofilms.

Keywords： Transparent exopolymer particles (TEPs)     TEP-protobiofilm     Bacteria attachment     Biofouling of membrane    

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Dilution sampling and analysis of particulate matter in biomass-derived syngas

Xiaoliang WANG, Curtis ROBBINS, S. Kent HOEKMAN, Judith C. CHOW, John G. WATSON, Dennis SCHUETZLE

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 320-330 doi: 10.1007/s11783-011-0347-x

Abstract: Thermochemical biomass gasification, followed by conversion of the produced syngas to fuels and electrical power, is a promising energy alternative. Real-world characterization of particulate matter (PM) and other contaminants in the syngas is important to minimize damage and ensure efficient operation of the engines it powers and the fuels created from it. A dilution sampling system is demonstrated to quantify PM in syngas generated from two gasification plants utilizing different biomass feedstocks: a BioMax 15 Biopower System that uses raw and torrefied woodchips as feedstocks, and an integrated biorefinery (IBR) that uses rice hulls and woodchips as feedstocks. PM mass concentrations in syngas from the IBR downstream of the purification system were 12.8–13.7 μg·m , which were significantly lower than the maximum level for catalyst protection (500 μg·m ) and were 2–3 orders of magnitude lower than those in BioMax 15 syngas (2247–4835 μg·m ). Ultrafine particle number concentration and PM chemical constituents were also much lower in the IBR syngas than in the BioMax 15. The dilution sampling system enabled reliable measurements over a wide range of concentrations: the use of high sensitivity instruments allowed measurement at very low concentrations (~1 μg·m ), while the flexibility of dilution minimized sampling problems that are commonly encountered due to high levels of tars in raw syngas (~1 g·m ).

Keywords： dilution source sampling     syngas characterization     biomass gasification     ultrafine particles    

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Dynamic characteristics of molten droplets and hot particles falling in liquid pool

Liangxing LI, Weimin MA, Huixiong LI, Tingkuan CHEN,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 246-251 doi: 10.1007/s11708-009-0077-y

Abstract: The dynamic characteristics of molten droplets and hot particles at the very beginning of their fallEmphasis was placed on the effects of the droplet’s size and temperature, the coolant’s temperatureand properties, and the droplet’s physical properties on the moving behavior.

Keywords： dynamic characteristics     molten droplets     high-temperature particles     fuel and coolant interactions    

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Selective removal of phenol by spherical particles of

Qingchuan CHEN, Yicun WEN, Yu CANG, Li LI, Xuhong GUO, Rui ZHANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 162-169 doi: 10.1007/s11705-013-1318-5

Abstract: Spherical particles of -, - and -cyclodextrin (CD) polymers to efficiently remove phenol from wasteBy controlling the amounts of crosslinker and water, well-defined spherical polymer particles with controllableDue to the selective inclusion associations between CD groups and phenol, these CD spherical polymer particlesAmong them -CD polymer particles showed the best performance.were used to fit the experimental data of phenol removal from aqueous solution using these CD polymer particles

Keywords： cyclodextrin polymer particles     phenol     kinetic models     adsorption isotherm equilibrium models    

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Nitrifying population dynamics in a redox stratified membrane biofilm reactor (RSMBR) for treating ammonium-rich

Rongchang WANG, Xinmin ZHAN, Yalei ZHANG, Jianfu ZHAO

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 48-56 doi: 10.1007/s11783-011-0305-7

Abstract: redox stratified membrane biofilm reactor (RSMBR) under oxygen limited condition to treat ammonium-rich

Keywords： ammonium-rich wastewater     membrane biofilm reactor     nitrification     redox stratification     shortcut nitrogen    

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Mechanism and control factors of hydrate plugging in multiphase liquid-rich pipeline flow systems: a

Shuwei ZHANG, Liyan SHANG, Zhen PAN, Li ZHOU, You GUO

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 747-773 doi: 10.1007/s11708-022-0830-z

Abstract: the significant research efforts specializing in the mechanisms of hydrate blockages in the liquid-richin-depth by combining the discrepancy of water content and the microscopic characteristics of hydrate particles

Keywords： hydrate     flow rate     water content     mechanism of pipeline blockage     rich liquid phase system    

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Platelet-rich plasma: combinational treatment modalities for musculoskeletal conditions

Isabel Andia, Michele Abate

Frontiers of Medicine 2018, Volume 12, Issue 2,   Pages 139-152 doi: 10.1007/s11684-017-0551-6

Abstract: Platelet-rich plasma therapies have emerged as a potential approach to enhance tissue repair and regenerationPlatelet-rich plasma application aims to provide supraphysiological concentrations of platelets and optionallyHowever, the efficacy of platelet-rich plasma is controversial in chronic diseases because patients&rsquoIn this review, the interactions between platelet-rich plasma and healing mechanisms were addressed andThe development of combinational platelet-rich plasma treatments that can be used safely and effectively

Keywords： regenerative medicine     joint conditions     muscle injuries     platelet rich plasma     tendinopathy     healing mechanisms    

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Fundamental influences of particles on stirred and unstirred venting processes of foaming systems

Henrik LEIMEISTER,Jörg STEINBACH

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 141-148 doi: 10.1007/s11705-014-1423-0

Abstract: So far, scenarios in which particles were part of the system and should have been accounted for did ignoreCurrent research shows that particles can have a major influence on the venting behaviour.Experimental results indicate that particles affect level swell and relief flow especially of foamy systems

Keywords： venting     multi-phase    

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Modularized Production of Value-Added Products and Fuels from Distributed Waste Carbon-Rich Feedstocks Perspective

Robert S. Weber, Johnathan E. Holladay

Engineering 2018, Volume 4, Issue 3,   Pages 330-335 doi: 10.1016/j.eng.2018.05.012

Abstract:

We have adapted and characterized electrolysis reactors to complement the conversion of regional- and community-scale quantities of waste into fuel or chemicals. The overall process must be able to contend with a wide range of feedstocks, must be inherently safe, and should not rely on external facilities for co-reactants or heat rejection and supply. Our current approach is based on the upgrading of bio-oil produced by the hydrothermal liquefaction (HTL) of carbon-containing waste feedstocks. HTL can convert a variety of feedstocks into a bio-oil that requires much less upgrading than the products of other ways of deconstructing biomass. We are now investigating the use of electrochemical processes for the further conversions needed to transform the bio-oil from HTL into fuel or higher value chemicals. We, and others, have shown that electrochemical reduction can offer adequate reaction rates and at least some of the necessary generality. In addition, an electrochemical reactor necessarily both oxidizes (removes electrons) on one side of the reactor and reduces (adds electrons) on the other side. Therefore, the two types of reactions could, in principle, be coupled to upgrade the bio-oil and simultaneously polish the water that is employed as a reactant and a carrier in the upstream HTL. Here, we overview a notional process, the possible conversion chemistry, and the economics of an HTL-electrochemical process.

Keywords： Reducing generation and discharge of     pollutants     Chemical engineering    

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Hygroscopicity of ambient submicron particles in urban Hangzhou, China

Jiachen ZHANG, Lin WANG, Jianmin CHEN, Shengmao FENG, Jiandong SHEN, Li JIAO

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 342-347 doi: 10.1007/s11783-011-0358-7

Abstract: In this study, hygroscopicity of size-segregated ambient submicron particles in urban Hangzhou was studiedThe submicron particles in Hangzhou showed a minor hygroscopic growth at 73% relative humidity (RH),Monomodal distribution accounted for 90% for 30 nm particles, 17% for 50 nm particles, and less than7% for particles larger than 50 nm at 82% RH.Our results imply that submicron particles in urban Hangzhou were almost entirely externally mixed, and

Keywords： hygroscopicity     hygroscopic tandem differential mobility analyzer (H-TDMA)     submicron ambient particles    

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Title Author Date Type Operation

Characteristics and mixing state of S-rich particles in haze episodes in Beijing

Jun Hu, Fengkui Duan, Kebin He, Yongliang Ma, Shuping Dong, Xiande Liu

Journal Article

Online single particle analysis of chemical composition and mixing state of crop straw burning particles

Juntao HUO,Xiaohui LU,Xinning WANG,Hong CHEN,Xingnan YE,Song Gao,Deborah S.

Journal Article

Orderly decorated nanostructural photoelectrodes with uniform spherical TiO

Bakhshayesh,S. S. Azadfar

Journal Article

Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Journal Article

Polymer-nanoinorganic particles composite membranes: a brief overview

Zhen-liang XU, Li-yun YU, Ling-feng HAN

Journal Article

Transparent exopolymer particles (TEPs)-associated protobiofilm: A neglected contributor to biofouling

Journal Article

Dilution sampling and analysis of particulate matter in biomass-derived syngas

Xiaoliang WANG, Curtis ROBBINS, S. Kent HOEKMAN, Judith C. CHOW, John G. WATSON, Dennis SCHUETZLE

Journal Article

Dynamic characteristics of molten droplets and hot particles falling in liquid pool

Liangxing LI, Weimin MA, Huixiong LI, Tingkuan CHEN,

Journal Article

Selective removal of phenol by spherical particles of

Qingchuan CHEN, Yicun WEN, Yu CANG, Li LI, Xuhong GUO, Rui ZHANG

Journal Article

Nitrifying population dynamics in a redox stratified membrane biofilm reactor (RSMBR) for treating ammonium-rich

Rongchang WANG, Xinmin ZHAN, Yalei ZHANG, Jianfu ZHAO

Journal Article

Mechanism and control factors of hydrate plugging in multiphase liquid-rich pipeline flow systems: a

Shuwei ZHANG, Liyan SHANG, Zhen PAN, Li ZHOU, You GUO

Journal Article

Platelet-rich plasma: combinational treatment modalities for musculoskeletal conditions

Isabel Andia, Michele Abate

Journal Article

Fundamental influences of particles on stirred and unstirred venting processes of foaming systems

Henrik LEIMEISTER,Jörg STEINBACH

Journal Article

Modularized Production of Value-Added Products and Fuels from Distributed Waste Carbon-Rich Feedstocks

Robert S. Weber, Johnathan E. Holladay

Journal Article

Hygroscopicity of ambient submicron particles in urban Hangzhou, China

Jiachen ZHANG, Lin WANG, Jianmin CHEN, Shengmao FENG, Jiandong SHEN, Li JIAO

Journal Article