Preparation and characterization of macroporous SiC ceramic membrane for treatment of waste water

Das, Debasish; Baitalik, Sanchita; Haldar, B.C.; Saha, Rajnarayan; Kayal, Nijhuma

doi:10.1007/s10934-017-0528-5

Cited by 29 publications

(10 citation statements)

References 29 publications

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“…In the literature, there are several reports showing the corrosion resistance of SiC membranes [ 22 , 27 , 29 , 32 , 46 , 47 ]. For example, Jiang et al [ 32 ] prepared SiC ceramic membrane using zeolite residue as sintering additive and exposed them to solutions of 20 vol% H 2 SO 4 or 1 wt% NaOH at 90 °C over 300 h, respectively.…”

Section: Resultsmentioning

confidence: 99%

Ceramic Processing of Silicon Carbide Membranes with the Aid of Aluminum Nitrate Nonahydrate: Preparation, Characterization, and Performance

2021

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The development of a low-cost and environmentally-friendly procedure for the fabrication of silicon carbide (SiC) membranes while achieving good membrane performance is an important goal, but still a big challenge. To address this challenge, herein, a colloidal coating suspension of sub-micron SiC powders was prepared in aqueous media by employing aluminum nitrate nonahydrate as a sintering additive and was used for the deposition of a novel SiC membrane layer onto a SiC tubular support by dip-coating. The sintering temperature influence on the structural morphology was studied. Adding aluminum nitrate nonahydrate reduced the sintering temperature of the as-prepared membrane compared to conventional SiC membrane synthesis. Surface morphology, pore size distribution, crystalline structure, and chemical and mechanical stability of the membrane were characterized. The membrane showed excellent corrosion resistance in acidic and basic medium for 30 days with no significant changes in membrane properties. The pure water permeance of the membrane was measured as 2252 L h−1 m−2 bar−1. Lastly, the final membrane with 0.35 µm mean pore size showed high removal of oil droplets (99.7%) in emulsified oil-in-water with outstanding permeability. Hence, the new SiC membrane is promising for several industrial applications in the field of wastewater treatment.

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Section: Resultsmentioning

confidence: 99%

Ceramic Processing of Silicon Carbide Membranes with the Aid of Aluminum Nitrate Nonahydrate: Preparation, Characterization, and Performance

2021

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“…The chemical stability of SiC substrates was also investigated under the exposure of acid or alkaline solutions. Das et al [37] reported that SiC was stable in the pH range of 3-10 at 90 � C for 10 days, though unstable at pH 1 due to formation of surface siloxane groups (Si-O-Si), whilst SiC dissolved rapidly with the formation of Na2SiO3NaOH when exposed to NaOH (pH 11). Bukhari et al [45] also found that SiC samples slightly degraded when exposed to acids solutions for up to 60 days at room temperature.…”

Section: Thermal and Chemical Stabilitymentioning

confidence: 99%

“…Owing to low temperature operation, SiC membranes are becoming ideal for liquid processing, particularly in wastewater treatment plants [111]. Das et al [37] reported that SiC membranes (1.3 <d p <2.4 μm)…”

Section: Liquid Separationmentioning

confidence: 99%

Silicon carbide filters and porous membranes: A review of processing, properties, performance and application

Hotza

Luccio

Wilhelm

et al. 2020

Journal of Membrane Science

102

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Silicon carbide (SiC) filters and porous membranes is a growing industry with deployment for gas and liquid separation processes. In view of its importance, the research efforts into the development of SiC filters and membranes are of growing interest around the world. Therefore, this review paper is focused on the latest advancements in SiC and SiC composites used for the preparation of substrates and thin films in filters and membranes. There is a multitude of methods used to prepare filters and membranes of different shapes (tubular, honeycomb, flat sheets and multi-channel), which are influenced by precursor mixture and sintering conditions. In turn, these processing conditions affect porosity and pore size, which affects the transport and separation properties of SiC filters and membranes. SiC particles size and distribution allow for the precise control of pore size in membranes, leading to high gas separation factors. In addition, SiC has strong thermal stability properties that are very desirable for high temperature gas cleaning. Together with gas and liquid transport and separation properties, this review also addresses the potential applications in gas and liquid separation processes, coupled with thermal/chemical stability properties. Future challenges are highlighted towards further research efforts.

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“…Therefore, such streams must be treated before recovering those valuable resources to prevent either health risks or environmental pollution. Direct membrane UF using ceramic membranes have been evaluated for the direct treatment of raw municipal wastewater and greywater, showing a good performance in terms of the quality of the produced water (permeate) (Kramer et al, 2015;Das et al, 2018;Kramer et al, 2020). Direct membrane UF can be operated in a non-continuous regime, and it requires a relatively small footprint.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach to Sludge Treatment using Microwave Technology

Kocbek¹

2022

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Preparation and characterization of macroporous SiC ceramic membrane for treatment of waste water

Cited by 29 publications

References 29 publications

Ceramic Processing of Silicon Carbide Membranes with the Aid of Aluminum Nitrate Nonahydrate: Preparation, Characterization, and Performance

Ceramic Processing of Silicon Carbide Membranes with the Aid of Aluminum Nitrate Nonahydrate: Preparation, Characterization, and Performance

Silicon carbide filters and porous membranes: A review of processing, properties, performance and application

A Novel Approach to Sludge Treatment using Microwave Technology

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