Preparation and characterization of tubular supported ceramic microfiltration membranes from fly ash

Fang, Jing; Qin, Guotong; Wei, Wei; Zhao, Xinqing

doi:10.1016/j.seppur.2011.06.014

Cited by 103 publications

(32 citation statements)

References 18 publications

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“…One of the alternatives was to use fly ash as a raw material for fabrication of ceramic membranes. Recently, some researchers have attempted to exploit fly ash as a raw material for the preparation of ceramic membrane supports [19][20][21]. Dong et al [20] have developed mullite supports by sintering (1,450˚C) fly ash with various amounts of titania and the average pore size of the obtained supports was in the range of 6.52-7.28 μm.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

“…Dong et al [20] have developed mullite supports by sintering (1,450˚C) fly ash with various amounts of titania and the average pore size of the obtained supports was in the range of 6.52-7.28 μm. In the work of Fang et al [21], fly ash-based tubular support with an average pore size of 2.13 μm was prepared by an extrusion method and sintered at 1,190˚C. Majorly, three techniques including extrusion, slip casting, and uniaxial pressing/compaction are widely used to fabricate ceramic microfiltration membranes (CMM). Most of the researchers have adopted slip casting and extrusion methods for the fabrication of CMM from high-purity clays and fly ash [18,21,22].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

“…In the work of Fang et al [21], fly ash-based tubular support with an average pore size of 2.13 μm was prepared by an extrusion method and sintered at 1,190˚C. Majorly, three techniques including extrusion, slip casting, and uniaxial pressing/compaction are widely used to fabricate ceramic microfiltration membranes (CMM). Most of the researchers have adopted slip casting and extrusion methods for the fabrication of CMM from high-purity clays and fly ash [18,21,22]. The membranes produced using these techniques usually possess higher porosity and are also expensive [22].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

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Development of ceramic membranes from low-cost clays for the separation of oil–water emulsion

Suresh

Pugazhenthi

2014

Desalination and Water Treatment

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A B S T R A C TThis work addresses the fabrication of ceramic microfiltration membranes by uniaxial dry compaction method. Four membranes, namely SP1, SP2, SP3, and SP4 were prepared with various compositions of fly ash and titanium dioxide (TiO 2 ) followed by sintering at 1,100˚C. The raw materials and the prepared membranes were characterized by particle size distribution, X-ray diffraction and field emission scanning electron microscope, porosity, pore size, and chemical and mechanical stabilities. As the TiO 2 content increases in the precursor formulations, the porosity and mechanical stability of the membranes also increase while the average pore size reduces from 2.97 to 1.32 μm. The chemical stability of all the membranes demonstrates to be better in both acidic and basic medium. The performance of the membrane (SP4) is examined for the separation of oil-water emulsion and the membrane exhibits a maximum oil rejection of 99.2%.

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Section: Desalination and Water Treatmentmentioning

confidence: 99%

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Section: Desalination and Water Treatmentmentioning

confidence: 99%

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Development of ceramic membranes from low-cost clays for the separation of oil–water emulsion

Suresh

Pugazhenthi

2014

Desalination and Water Treatment

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“…[6] Fly ash was proposed to be used as an additive to cement admixtures as well as a filler in concrete mixtures. [16][17][18] However, biomass-based fly ash is more environmentally friendly and may have a higher adsorption capacity, thus it was proposed to be used in treating wastewater effluents. [9] Adsorption may be an inexpensive and industrially attractive process.…”

Section: Introductionmentioning

confidence: 99%

Adsorption optimization of a biomass‐based fly ash for treating thermomechanical pulping (TMP) pressate using definitive screening design (DSD)

Cave

Fatehi

2018

Can J Chem Eng

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Wood chips are pretreated with steam or hot water prior to refining in a thermomechanical pulping (TMP) process. Currently, the resultant effluent (i.e., TMP pressate) must be treated in the wastewater treatment facility of the mill. Biomass fly ash is also generated in pulp mills as a residue from burning wood and other biomass in boilers. Fly ash utilization is currently limited and most of it is landfilled worldwide. In this study, biomass fly ash is used as an adsorbent for removing lignocelluloses from a TMP pressate. Biomass fly ash samples were fractionated, and the results showed that their carbon content decreased, but their metal content increased, as the particle size of the fly ash decreased. The main factors impacting the chemical oxygen demand (COD) and lignin concentration of a TMP pressate via treating with biomass fly ash samples (FA1 and FA2) were determined. Model equations and optimum conditions for these reductions were developed using definitive screening design (DSD). Generally, FA1 was considered a more effective adsorbent than FA2. The maximum COD removal from a TMP pressate (91.3 %) was achieved by using FA1 with a particle size of 0.43 mm at a dosage of 70 mg/g FA1/TMP pressate and a treatment time of 2 h. The maximum lignin removal from the TMP pressate (95 %) was obtained by using FA1 with a particle size of 0.11 mm at a dosage of 46.5 mg/g FA1/TMP pressate.

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“…Reaction scheme of benzene isopropylation to cumene over beta zeolite. quality [25,26]. Therefore, the effect of the introduction of the membranes with different pore sizes on the coupling system was first investigated.…”

Section: Effect Of Membrane Introductionmentioning

confidence: 99%

Highly efficient synthesis of cumene via benzene isopropylation over nano-sized beta zeolite in a submerged ceramic membrane reactor

Zou

Jiang

Liu

et al. 2016

Separation and Purification Technology

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Preparation and characterization of tubular supported ceramic microfiltration membranes from fly ash

Cited by 103 publications

References 18 publications

Development of ceramic membranes from low-cost clays for the separation of oil–water emulsion

Development of ceramic membranes from low-cost clays for the separation of oil–water emulsion

Adsorption optimization of a biomass‐based fly ash for treating thermomechanical pulping (TMP) pressate using definitive screening design (DSD)

Highly efficient synthesis of cumene via benzene isopropylation over nano-sized beta zeolite in a submerged ceramic membrane reactor

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