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Hydrothermal treatment of MSWI fly ash for simultaneous dioxins decomposition and heavy metal stabilization

Jinlong XIE, Yuyan HU, Dezhen CHEN, Bin ZHOU,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 1,   Pages 108-115 doi: 10.1007/s11783-010-0013-8

Abstract: Researches on the hydrothermal treatment of municipal solid waste incineration (MSWI) fly ash were conductedA hydrothermal reactor was set up by mixing raw MSWI fly ash or the pre-treated fly ash with water and

Keywords： municipal solid wastes incineration (MSWI)     fly ashes     polychlorinated dibenzo-dioxins (PCDDs)     polychlorinated    

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Effects of sulfur on variations in the chemical speciation of heavy metals from fly ash glass

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1728-7

Abstract:

● A higher sulfur content reduced the curing rate of Cr in glass.

Keywords： Dechlorinated fly ash     SO3     Heavy metal     Chemical speciation     Glass solidification    

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Service life prediction of fly ash concrete using an artificial neural network

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 793-805 doi: 10.1007/s11709-021-0717-9

Abstract: For this purpose, the present work estimates the lifetime of fly ash concrete by developing a carbonationSix parameters affecting carbonation were used as input neurons: binder content, fly ash substitutionneural network has strong potential as a feasible tool to accurately predict the carbonation depth of flyFinally, a mathematical formula is proposed that can be used to successfully estimate the service life of fly

Keywords： concrete     fly ash     carbonation     neural networks     experimental validation     service life    

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Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 411-418 doi: 10.1007/s11709-013-0228-4

Abstract: One method of reducing concrete’s contribution to greenhouse gas emissions is the use of fly ash to replaceThis study presents the results of an experimental investigation that evaluates effect of fly ash replacementThis study includes four mixes with 0%, 30%, 50%, and 70% fly ash as a cement replacement.Results of these statistical tests show that the mix with higher level of fly ash replacement level has

Keywords： concrete     fracture energy     fly ash    

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Direct synthesis of carbon nanotubes on fly ash particles to produce carbon nanotubes/fly ash composites

Fangxian LI, Cheng ZHOU, Pengfei YANG, Beihan WANG, Jie HU, Jiangxiong WEI, Qijun YU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1405-1414 doi: 10.1007/s11709-019-0564-0

Abstract: Fly ash was used as catalytic support for carbon nanotubes (CNTs) growth by chemical vapor depositionIn this paper, CNTs were synthesized on Ni catalyst/fly ash substrate using CVD method.acetylene and hydrogen flow rate would decrease in defect density and increase in yield of as-grown CNTs on fly

Keywords： carbon nanotubes     fly ash     chemical vapor deposition     parameters     purification    

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Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel

Vallarasu Manoharan SOUNTHARARAJAN, Dr. Anandan SIVAKUMAR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 429-445 doi: 10.1007/s11709-013-0226-6

Abstract: The present study focuses on the improvement of pozzolanic reaction of fly ash particles with the cementLow and high volume fly ash concrete mixtures were studied systematically with the addition of acceleratingthe reinforcing effects of glued steel fibers addition on the compressive and flexural performance of flyA maximum increase (41.7%) in compressive strength of fly ash concrete around 52.90 MPa was noticed for25% fly ash substitution and 1.5% steel fibers addition.

Keywords： fly ash     pozzolanic index     steam curing     superplasticizer     accelerator     steel fibres     elastic modulus    

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Effects of seeding nucleation agent on geopolymerization process of fly-ash geopolymer

Lapyote PRASITTISOPIN, Issara SEREEWATTHANAWUT

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 16-25 doi: 10.1007/s11709-016-0373-7

Abstract: viability to substitute traditional concrete made of portland cement (PC) because replacing PC with flyAlthough fly ash geopolymer stimulates sustainability, it is slow geopolymerization reaction poses aThe purpose of this study is to evaluate seeding nucleation agents (NA) of fly ash geopolymer that canpotentially used to increase geopolymerization reaction rate and improve performance characteristics of the fly

Keywords： fly ash     geopolymer     nucleation agent     portland cement replacement    

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Chloride binding and time-dependent surface chloride content models for fly ash concrete

S. MUTHULINGAM,B. N. RAO

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 112-120 doi: 10.1007/s11709-015-0322-x

Abstract: The current study proposes two chloride ingress parameter models for fly ash concrete, namely: 1) surfaceSecondly, to avoid such inconsistencies, surface chloride content and chloride binding models for fly

Keywords： binding isotherms     chloride ingress     concrete     fly ash     surface chloride content    

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Porous silica synthesis out of coal fly ash with no residue generation and complete silicon separation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1712-2

Abstract: ListItem>

● Both amorphous and crystalline silicon are completely separated from coal fly

Keywords： Coal fly ash     Alkali fusion     Micro-/meso-porous Si     Zeolite MCM-48     Crystalline transformation    

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Compressive strength and stability of sustainable self-consolidating concrete containing fly ash, silica

Osama Ahmed MOHAMED, Omar Fawwaz NAJM

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 406-411 doi: 10.1007/s11709-016-0350-1

Abstract: sustainable self-consolidating concrete (SCC) mixes where up to 80% of Portland cement was replaced with flyIt was concluded in this study that increasing the dosage of fly ash increases concrete flow but alsocompared to control mix after 28 days of curing when cement was partially replaced by 10%, 30%, and 40% of flyHowever, a fly ash replacement ratio of 20% increased the compressive strength by a small margin compared

Keywords： fly ash     silica fume     ground granulated blast-furnace slag     self-consolidating concrete     and sustainable    

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Characteristics of the stabilized/solidified municipal solid wastes incineration fly ash and the leaching

Yan SHAO,Haobo HOU,Guangxing WANG,Sha WAN,Min ZHOU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 192-200 doi: 10.1007/s11783-014-0719-0

Abstract: Fly ash is a hazardous byproduct of municipal solid wastes incineration (MSWI).alkali activated blast furnace slag-based cementitious material was used to stabilize/solidify the flyThe characteristics of the stabilized/solidified fly ash, including metal leachability, mineralogicalThe stabilization/solidification procedure for MSWI fly ash demonstrates a strong fixing capacity forThe stabilized/solidified fly ash shows a dense and homogeneous microstructure.

Keywords： municipal solid waste incineration (MSWI) fly ash     blast furnace slag     leaching behavior     Cr     Pb    

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Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 54-61 doi: 10.1007/s11783-013-0493-4

Abstract: The synthesis was carried out by hydrothermal activation after alkali fusion and coal fly ash (CFA) was

Keywords： coal fly ash (CFA)     seawater salinity     zeolite synthesis    

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The investigation of fly ash based asphalt binders using atomic force microscope

Rajan SAHA, Kyle MALLOY, Emil BAUTISTA, Konstantin SOBOLEV

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 380-387 doi: 10.1007/s11709-017-0437-3

Abstract: In this study AFM was used to investigate the interaction of asphalt binder with fly ash.Fly ash is a coal combustion byproduct of electric power utilities having pozzolanic properties and commonlyIn this study, an investigation was made by using different types of fly ash with two types of asphaltThe interaction of these phases affected by introducing fly-ash was investigated and correlation with

Keywords： AFM     fly ash     bee     rheology     asphalt    

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A novel approach to preparing ultra-lightweight ceramsite with a large amount of fly ash

Sen Liu, Congren Yang, Wei Liu, Longsheng Yi, Wenqing Qin

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 4, doi: 10.1007/s11783-020-1241-1

Abstract: •Ultra-lightweight ceramsite is prepared with 80% fly ash.The disposal of fly ash has become a serious problem in China due to its rapid increase in volume inThe most common method of fly ash disposal is solidification-stabilization-landfill, and the most commonA novel processing method for preparing ultra-lightweight ceramsite with fly ash was developed.the optimal parameters for preparation of ultra-lightweight ceramsite are as follows: mass ratio of fly

Keywords： Fly ash     Ultra-lightweight ceramsite     Expansion mechanism     Sintering process    

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Mercury emission and adsorption characteristics of fly ash in PC and CFB boilers

Li JIA, Baoguo FAN, Xianrong ZHENG, Xiaolei QIAO, Yuxing YAO, Rui ZHAO, Jinrong GUO, Yan JIN

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 112-123 doi: 10.1007/s11708-020-0682-3

Abstract: The relationship was obtained between the mercury emission and adsorption characteristics of fly ash.The parameters included unburned carbon content, particle size, and pore structure of fly ash.mercury released to the atmosphere with the flue gas in PC boiler, while the mercury was enriched in flyIt was also found that the mercury content of fly ash in the CFB boiler was ten times higher than thatThe capacity of adsorbing mercury by fly ash was directly related to the particle size.

Keywords： mercury     combustion modes     coal property     fly ash     particle size    

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Title Author Date Type Operation

Hydrothermal treatment of MSWI fly ash for simultaneous dioxins decomposition and heavy metal stabilization

Jinlong XIE, Yuyan HU, Dezhen CHEN, Bin ZHOU,

Journal Article

Effects of sulfur on variations in the chemical speciation of heavy metals from fly ash glass

Journal Article

Service life prediction of fly ash concrete using an artificial neural network

Journal Article

Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Journal Article

Direct synthesis of carbon nanotubes on fly ash particles to produce carbon nanotubes/fly ash composites

Fangxian LI, Cheng ZHOU, Pengfei YANG, Beihan WANG, Jie HU, Jiangxiong WEI, Qijun YU

Journal Article

Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel

Vallarasu Manoharan SOUNTHARARAJAN, Dr. Anandan SIVAKUMAR

Journal Article

Effects of seeding nucleation agent on geopolymerization process of fly-ash geopolymer

Lapyote PRASITTISOPIN, Issara SEREEWATTHANAWUT

Journal Article

Chloride binding and time-dependent surface chloride content models for fly ash concrete

S. MUTHULINGAM,B. N. RAO

Journal Article

Porous silica synthesis out of coal fly ash with no residue generation and complete silicon separation

Journal Article

Compressive strength and stability of sustainable self-consolidating concrete containing fly ash, silica

Osama Ahmed MOHAMED, Omar Fawwaz NAJM

Journal Article

Characteristics of the stabilized/solidified municipal solid wastes incineration fly ash and the leaching

Yan SHAO,Haobo HOU,Guangxing WANG,Sha WAN,Min ZHOU

Journal Article

Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Journal Article

The investigation of fly ash based asphalt binders using atomic force microscope

Rajan SAHA, Kyle MALLOY, Emil BAUTISTA, Konstantin SOBOLEV

Journal Article

A novel approach to preparing ultra-lightweight ceramsite with a large amount of fly ash

Sen Liu, Congren Yang, Wei Liu, Longsheng Yi, Wenqing Qin

Journal Article

Mercury emission and adsorption characteristics of fly ash in PC and CFB boilers

Li JIA, Baoguo FAN, Xianrong ZHENG, Xiaolei QIAO, Yuxing YAO, Rui ZHAO, Jinrong GUO, Yan JIN

Journal Article