Recycle coal fly ash for preparing tubular ceramic membranes applied in transport membrane condenser

Huang, Jong Shin; Zhang, Heng; Zhang, Yuntao; Liang, Dehua; Chen, Haiping

doi:10.1016/j.seppur.2021.119972

Cited by 27 publications

(4 citation statements)

References 32 publications

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“…Therefore, nowadays many researchers are focusing on usage of CFA as major precursor for ceramic support fabrication (Chatterjee et al, 2019;Shaheen et al, 2014). Fly ash combined with molybdenum trioxide, dextrin and aluminum hydroxide are successfully used to prepare the inorganic membranes (Das et al, 2020;Huang et al, 2022;Fu et al, 2019). Zou et al (2021) has synthesized a composite membrane using porous fly ash support with glycerol.…”

Section: Membrane Separation Is a Most Important And Efficient Method...mentioning

confidence: 99%

Tailor‐made FAU zeolite composite membrane for wastewater treatment

Chathurappan

Anandkumar

2022

Environmental Quality Mgmt

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In this work, a novel multipurpose Faujasite (FAU) zeolite composite membrane was fabricated by in‐situ hydrothermal method to separate different solute molecules such as vanillic acid, phenol, and brilliant green from the aqueous solution. The coal fly ash based ceramic substrate was synthesized and used as substrate for preparing the zeolite composite membrane. The X‐ray diffraction (XRD) pattern confirmed the crystalline nature of membranes and the presence of Quartz and hematite in the composite membrane. The presence of Si‐O and Al‐O in zeolite coated composite membrane was confirmed by Fourier Transform infrared spectroscopy (FTIR) analysis. Scanning electron microscope (SEM) analysis showed the porous structure and 8.34 μm thickness of zeolite coating on membrane. The isoelectric point of composite membrane was observed at pH 2.07 through zeta potential analysis. Brunauer‐Emmett‐Teller (BET) surface area, average pore volume and pore diameter of zeolite composite membrane were estimated as 6.406 m2/gm, 0.0070 cm3/gm, and 4.371 nm, respectively. The hydraulic pore radius and porosity of composite membranes were 27.7 nm and 20.1%. The maximum separation efficiency of FAU zeolite composite membrane towards vanillic acid, phenol and brilliant green was estimated as 78.67%, 89.13%, and 94.28%, respectively, for 200 mg/L feed concentration at 276 kPa applied pressure. The results obtained in this study reveals that the multipurpose FAU zeolite composite membrane fabricated in this study can be effectively used for separation of various solutes molecules present in the wastewater.

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Section: Membrane Separation Is a Most Important And Efficient Method...mentioning

confidence: 99%

Tailor‐made FAU zeolite composite membrane for wastewater treatment

Chathurappan

Anandkumar

2022

Environmental Quality Mgmt

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“…In order to make synthetic membranes more flexible, glycerine is mostly utilized as a plasticizer. The porous ceramic membrane's porosity is increased using pore-forming materials including dextrin [ 84 , 85 ], calcium carbonate [ 81 , 82 , 86 ], and spherical graphite [ 79 , 87 ] which decompose completely during the sintering process. Table 1 gives the properties, configurations, and fabrication techniques of some coal fly ash based ceramic membranes.…”

Section: Synthesis Of Coal Fly Ash Based Ceramic Membranesmentioning

confidence: 99%

“… [ 106 ] Fly ash ceramic membrane Slip casting method Polyvinyl alcohol Pore size- 1.47 (μm Porosity- 39 (%) Mechanical strength 1.98 (MPa) [ 107 ] Tubular coal fly ash based ceramic membranes. Extrusion method Dextrin as pore-forming agent CMC, as organic binder Glycerin, to improve the plasticity Porosity- 44.76–47.30 % Mechanical strength 15.16–29.11 (MPa) [ 85 ] …”

Section: Synthesis Of Coal Fly Ash Based Ceramic Membranesmentioning

confidence: 99%

See 1 more Smart Citation

Application of coal fly ash based ceramic membranes in wastewater treatment: A sustainable alternative to commercial materials

Sawunyama,

Olatunde,

Oyewo

et al. 2024

Heliyon

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Removal of Natural Organic Matter Fractions by Kaolin/Fly Ash Ceramic Microfiltration Membrane in Drinking Water: Insights from a Laboratory Scale Application

Ndzimandze,

Moyo,

Mahlangu

et al. 2024

Adv Materials Inter

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The high cost of precursor materials has hindered commercialization of ceramic membranes (CM). In this work, a microfiltration ceramic disc (≈50 mm in diameter and 4 mm thick) is prepared from low‐cost materials, kaolin, and fly ash (≈67 and 26 wt.%, respectively) by pressing at 200 bar and calcining at 900 °C. Membrane characterization involved physicochemical properties, NOM removal efficiency, and fouling propensity analysis. Furthermore, the efficiency of the CM is tested on samples collected from four drinking water treatment plants (DWTPs) in KwaZulu‐Natal Province of South Africa. The NOM removal efficiencies ranged from 18.5–33.4% higher than that achieved by the sand filtration step of all the DWTPs. Fluorescence excitation‐emission matrix (FEEM) studies show dominance of terrestrial humic‐like and fulvic‐like NOM fractions in the raw water and are amenable to removal by CM at all the DWTPs (up to 64.7% higher than removal by sand filters at the respective plants). This study demonstrates the utility of ceramic membranes fabricated from rudimentary materials and presents an opportunity to upscale and retrofit the technology to target the removal of NOM fractions at conventional drinking water treatment plants.

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Recycle coal fly ash for preparing tubular ceramic membranes applied in transport membrane condenser

Cited by 27 publications

References 32 publications

Tailor‐made FAU zeolite composite membrane for wastewater treatment

Tailor‐made FAU zeolite composite membrane for wastewater treatment

Application of coal fly ash based ceramic membranes in wastewater treatment: A sustainable alternative to commercial materials

Removal of Natural Organic Matter Fractions by Kaolin/Fly Ash Ceramic Microfiltration Membrane in Drinking Water: Insights from a Laboratory Scale Application

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