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Effect of wastewater composition on the calcium carbonate precipitation in upflow anaerobic sludge blanket

Shucheng YANG, Yanling HE, Charles CHOU, Pengxiang ZHANG, Dongqi WANG, Yonghong LIU,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 142-149 doi: 10.1007/s11783-010-0026-3

Abstract: Calcium carbonate often precipitates in anaerobic reactors treating wastewater with high calcium contentThe aim of this paper is to study the effect of wastewater composition on calcium carbonate precipitationCalcium carbonate was found to have precipitated on the surface of acetate-degrading biogranules, butThe results indicated that substrates had significant influence on the location of calcium carbonateMoreover, the location of calcium carbonate precipitation substantially affected the specific methanogenic

Keywords： calcium carbonate     precipitation     anaerobic granular sludge     wastewater composition     microstructure     upflow    

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Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 372-375 doi: 10.1007/s11705-010-0570-1

Abstract: Calcium carbide was successfully synthesized by carbothermal reduction of lime with coke at 1973 K forAddition of potassium carbonate increased the yield of calcium carbide.higher than that in the absence of potassium carbonate.This result confirmed the catalytic effect of potassium carbonate on the synthesis of calcium carbidepromoted the contact between CaO and carbon, which was essential for the solid-solid reaction to form calcium

Keywords： calcium carbide     synthesis     catalysis    

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The capture of carbon dioxide by transition metal aluminates, calcium aluminate, calcium zirconate, calcium

Ganesh TILEKAR, Kiran SHINDE, Kishor KALE, Reshma RASKAR, Abaji GAIKWAD

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 477-491 doi: 10.1007/s11705-011-1107-y

Abstract: The capture of CO by transition metal (Mn, Ni, Co and Zn) aluminates, calcium aluminate, calcium zirconate, calcium silicate and lithium zirconate was carried out at pre- and post-combustion temperatures.Calcium zirconate captured 13.85 wt-% CO at 650°C and 2.5 atm and calcium silicate captured 14.31 wtIn addition, calcium aluminate, calcium zirconate, calcium silicate and lithium zirconate adsorbentszirconate<calcium zirconate<calcium silicate.

Keywords： captured CO2     pre-combustion temperature     characterization     calcium silicate     calcium zirconate    

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On corrosion to stainless steel by calcium chloride with different extender

Lv XU, Yuanyang HU, Liwei WANG, Ruzhu WANG,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 181-184 doi: 10.1007/s11708-009-0065-2

Abstract: A calcium chloride solution with a different extender, which is made up of either pure calcium chloride, calcium chloride with expanded graphite, or calcium chloride with activated carbon, acts differentlyThe mass ratio between calcium chloride with expanded graphite or activated carbon is almost 4∶The experimental research in this paper reveals that, of the three solutions, which are pure calciumchloride, calcium chloride with expanded graphite, and calcium chloride with activated carbon, the strongest

Keywords： stainless steel     corrosion     calcium chloride     expanded graphite     activated carbon     oxidation creation     pitting    

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Polyethylene glycol-supported ionic liquid as a highly efficient catalyst for the synthesis of propylene carbonate

Rui YAO, Hua WANG, Jinyu HAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 239-245 doi: 10.1007/s11705-012-1297-y

Abstract: The coupling reaction of propylene and CO to form propylene carbonate (PC) was promoted by an ionic

Keywords： ionic liquid     PEG-supported ionic liquid     carbon dioxide     propylene carbonate    

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Preparation and application of a phosphorous free and non-nitrogen scale inhibitor in industrial cooling water systems

Guangqing LIU,Mengwei XUE,Jingyi HUANG,Huchuan WANG,Yuming ZHOU,Qingzhao YAO,Lei LING,Ke CAO,Yahui LIU,Yunyun BU,Yiyi CHEN,Wendao WU,Wei SUN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 545-553 doi: 10.1007/s11783-014-0657-x

Abstract: A novel environmentally friendly type of calcium carbonate, zinc (II) and iron (III) scale inhibitorThe observation shows that both calcium carbonate, zinc (II) and iron (III) inhibition increase withThe results showed that the AA-APEL copolymer not only influenced calcium carbonate crystal morphologyInhibition mechanism is proposed that the interactions between calcium or iron ions and polyethylene

Keywords： phosphorous free     calcium carbonate     stabilize zinc (II)     disperse iron (III)     cooling water    

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Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 515-525 doi: 10.1007/s11709-018-0494-2

Abstract: effect on compressive strength and self-healing capability of bacterial concrete with the addition of calciumThe production of calcium carbonate in bacterial concrete is limited to the calcium content in cementHence calcium lactate is externally added to be an additional source of calcium in the concrete.Calcium lactates with concentrations of 0.5%, 1.0%, 1.5%, 2.0%, and 2.5% of cement, was added to theFindings of this investigation indicated the influence of added calcium lactate in bio-concrete which

Keywords： calcium lactate     bacillus subtilis     compressive strength     self-healing of cracks    

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Chemical mapping of cement pastes by using confocal Raman spectroscopy

Fengjuan LIU,Zhihui SUN

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2,   Pages 168-173 doi: 10.1007/s11709-015-0323-9

Abstract: Cement ingredients and hydration products, including calcium silicates (C S and C S), calcium hydroxideFrom the research, it is observed that calcium silicates were consumed gradually with the increased hydrationCalcium hydroxide increased and tended to cluster in the pore vicinity during hydration.to form on the surface of the unreacted particles, which was shown as a mixed zone of ettringite and calcium

Keywords： chemical mapping     Raman spectroscopy     calcium silicates     calcium hydroxide     ettringite    

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Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 722-731 doi: 10.1007/s11709-023-0950-5

Abstract: The aim of this study is to appraise the potential of calcium sulfoaluminate (CSA) cement-based grouts

Keywords： permafrost     low temperatures     calcium sulfoaluminate cement-based grouts     hydration reaction     compressive    

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Novel eco-efficient reactive distillation process for dimethyl carbonate production by indirect alcoholysis

Iulian Patraşcu, Costin S. Bîldea, Anton A. Kiss

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 316-331 doi: 10.1007/s11705-021-2047-9

Abstract: Dimethyl carbonate is an eco-friendly essential chemical that can be sustainably produced from CO , whichThe rapid increase in dimethyl carbonate demand is driven by the fast growth of polycarbonates, solventDimethyl carbonate can be produced from CO through various chemical pathways, but the most convenientTherefore, less equipment is required, the methanol-dimethyl carbonate azeotrope does not need to beThe energy requirement is reduced by heat integration to just 1.25 kW·h·kg dimethyl carbonate, which

Keywords： dimethyl carbonate     reactive distillation     process design     plantwide control    

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Effects of metal ions on the morphology of calcium sulfate hemihydrate whiskers by hydrothermal method

Tianjie Liu, Hao Fan, Yanxia Xu, Xingfu Song, Jianguo Yu

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 545-553 doi: 10.1007/s11705-017-1665-8

Abstract: The effects of Na , Mg , Al and Fe ion concentrations on the crystal morphology of calcium sulfateThese results indicate that in raw materials used for the industrial preparation of calcium sulfate whiskers

Keywords： metal ions     morphology     calcium sulfate hemihydrate whiskers     hydrothermal method     selective adsorption    

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Enhanced carbon tetrachloride degradation by hydroxylamine in ferrous ion activated calcium peroxide

Wenchao Jiang, Ping Tang, Zhen Liu, Huan He, Qian Sui, Shuguang Lyu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1197-1

Abstract: effects of hydroxylamine (HA) and formic acid (FA) (initial [CT] = 0.13 mmol/L) in a Fe(II) activated calcium

Keywords： Calcium peroxide     Hydroxylamine     Modified Fenton     Reactive oxygen species     Perchlorinated hydrocarbon    

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Inspection System of Carbonate Equilibrium for Groundwater

Liu Jiangang,Zheng Kexun,Fu Weining,Wu Shunhua

Strategic Study of CAE 2003, Volume 5, Issue 9,   Pages 61-64

Abstract:

The paper discusses the relationship between three forms of carbonate as H2C03carbonateSo features of carbonate equilibrium in carbonate rock depend on component of calcite.

Keywords： carbonate rock     groundwater     carbonate equilibrium     pH value    

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Multi-objective optimization of molten carbonate fuel cell system for reducing CO

Ramin ROSHANDEL,Majid ASTANEH,Farzin GOLZAR

Frontiers in Energy 2015, Volume 9, Issue 1,   Pages 106-114 doi: 10.1007/s11708-014-0341-7

Abstract: The aim of this paper is to investigate the implementation of a molten carbonate fuel cell (MCFC) as

Keywords： molten carbonate fuel cell (MCFC)     multi-objective optimization (MOO)     Pareto curve     genetic algorithm     CO    

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Extending blending proportions of ordinary Portland cement and calcium sulfoaluminate cement blends:

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1249-1260 doi: 10.1007/s11709-021-0770-4

Abstract: This study extended blending proportion range of ordinary Portland cement (OPC) and calcium sulfoaluminate

Keywords： calcium sulfoaluminate cement     cement blends     hydration reaction     setting     workability     compressive strength    

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Title Author Date Type Operation

Effect of wastewater composition on the calcium carbonate precipitation in upflow anaerobic sludge blanket

Shucheng YANG, Yanling HE, Charles CHOU, Pengxiang ZHANG, Dongqi WANG, Yonghong LIU,

Journal Article

Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Journal Article

The capture of carbon dioxide by transition metal aluminates, calcium aluminate, calcium zirconate, calcium

Ganesh TILEKAR, Kiran SHINDE, Kishor KALE, Reshma RASKAR, Abaji GAIKWAD

Journal Article

On corrosion to stainless steel by calcium chloride with different extender

Lv XU, Yuanyang HU, Liwei WANG, Ruzhu WANG,

Journal Article

Polyethylene glycol-supported ionic liquid as a highly efficient catalyst for the synthesis of propylene carbonate

Rui YAO, Hua WANG, Jinyu HAN

Journal Article

Preparation and application of a phosphorous free and non-nitrogen scale inhibitor in industrial cooling water systems

Guangqing LIU,Mengwei XUE,Jingyi HUANG,Huchuan WANG,Yuming ZHOU,Qingzhao YAO,Lei LING,Ke CAO,Yahui LIU,Yunyun BU,Yiyi CHEN,Wendao WU,Wei SUN

Journal Article

Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Journal Article

Chemical mapping of cement pastes by using confocal Raman spectroscopy

Fengjuan LIU,Zhihui SUN

Journal Article

Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Journal Article

Novel eco-efficient reactive distillation process for dimethyl carbonate production by indirect alcoholysis

Iulian Patraşcu, Costin S. Bîldea, Anton A. Kiss

Journal Article

Effects of metal ions on the morphology of calcium sulfate hemihydrate whiskers by hydrothermal method

Tianjie Liu, Hao Fan, Yanxia Xu, Xingfu Song, Jianguo Yu

Journal Article

Enhanced carbon tetrachloride degradation by hydroxylamine in ferrous ion activated calcium peroxide

Wenchao Jiang, Ping Tang, Zhen Liu, Huan He, Qian Sui, Shuguang Lyu

Journal Article

Inspection System of Carbonate Equilibrium for Groundwater

Liu Jiangang,Zheng Kexun,Fu Weining,Wu Shunhua

Journal Article

Multi-objective optimization of molten carbonate fuel cell system for reducing CO

Ramin ROSHANDEL,Majid ASTANEH,Farzin GOLZAR

Journal Article

Extending blending proportions of ordinary Portland cement and calcium sulfoaluminate cement blends:

Journal Article