Submerged low-cost pyrophyllite ceramic membrane filtration combined with GAC as fluidized particles for industrial wastewater treatment

Ahmad, Rizwan; Aslam, Muhammad; Park, Eun‐Young; Chang, Soomin; Kwon, Deaun; Kim, Jeong‐Hwan

doi:10.1016/j.chemosphere.2018.05.045

Cited by 60 publications

(18 citation statements)

References 49 publications

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“…Ceramic membranes have many advantages over polymeric membranes, including longer service life, superior thermal and chemical resistance, and better fouling resistance, owing to their hydrophilic surface with a low contact angle [9][10][11][12][13]. Recent advances in membrane fabrication techniques have enabled the development of ceramic membranes with higher reactivities and widespread applications beyond their traditional role as a separation tool.…”

Section: Introductionmentioning

confidence: 99%

Diethylene Glycol-Assisted Organized TiO2 Nanostructures for Photocatalytic Wastewater Treatment Ceramic Membranes

Ahmad

Kim

et al. 2019

Water

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A high-performance photocatalytic ceramic membrane was developed by direct growth of a TiO2 structure on a macroporous alumina support using a hydrothermal method. The morphological nanostructure of TiO2 on the support was successfully controlled via the interaction between the TiO2 precursor and a capping agent, diethylene glycol (DEG). The growth of anatase TiO2 nanorods was observed both on the membrane surface and pore walls. The well-organized nanorods TiO2 reduced the perturbation of the alumina support, thus controlling the hydrolysis rate of the TiO2 precursor and reducing membrane fouling. However, a decrease in the amount of the DEG capping agent significantly reduced membrane permeability, owing to the formation of nonporous clusters of TiO2 on the support. Distribution of the organized TiO2 nanorods on the support was very effective for the improvement of the organic removal efficiency and antifouling under ultraviolet illumination. The TiO2 nanostructure associated with the reactive crystalline phase, rather than the amount of layered TiO2 formed on the support, which was found to be the key to controlling photocatalytic membrane reactivity. These experimental findings would provide a new approach for the development of efficacious photocatalytic membranes with improved performance for wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Diethylene Glycol-Assisted Organized TiO2 Nanostructures for Photocatalytic Wastewater Treatment Ceramic Membranes

Ahmad

Kim

et al. 2019

Water

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“…After determining the value of filtrate with respect to time, Table 5. The values of α 0.284 × 10 -14 , 0.451 × 10 -14 , 0.546 × 10 -14 m/Kg and R m 0.131 × 10 -12 , 2.15 × 10 -12 , 4.34 × 10 -12 were achieved for electro-oxidation process, joint process and thermal-oxidation process.. From the result, it can found that electrochemically treated wastewater has more prose and spongy as compared to others [34].…”

Section: Settlingmentioning

confidence: 82%

Deduction of Organic and Inorganic Pollutant from Sugarcane Processing Plant Effluent by Thermal-oxidation and Electro-oxidation Processes in Batch Experiment

Sahu

2020

Chemistry Africa

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Sugarcane industries have a major contribution to the rural development of country, including pollution level to the environment. Associate with all the waste from the sugarcane industry, wastewater is a key issue to manage. Throughout the sugarcane processing season, large quantities of water consumed and discharge a large amount of wastewater. The investigation has been done to bring wastewater up to recycling limit made by pollution board. The objective of this research work is to reduced the pollutants from sugar industry effluent with thermal oxidation, electrooxidation, and combined with both treatment process. The result shows 68.5% COD and 71.2% color with thermal, 82.5% COD, and 86.5% color with electrocoagulation and 98% COD and 99.2% color reduction with a combined treatment of most appropriate conditions. In settling and filtration study 80% of efficiency was attained with the combined study. The sludge containing a lesser amount of inorganic and treated can be reutilized.

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“…The specifications of the ceramic membrane are described in detail elsewhere [2,3]. It was a flat membrane coated with alumina and had a nominal pore size of 0.1 µm, an effective surface area of 94.7 cm 2 , a height of 7 cm, a width of 6 cm, and a thickness of 0.4 cm.…”

Section: Preparation Of the Ion-exchange Fabric/ceramic Membrane Hybrmentioning

confidence: 99%

“…They have a hydrophilic surface that makes them more durable and resistant to failure due to less membrane contamination [2]. In addition, ceramic membranes are attractive in industrial wastewater treatment because they are low-pressure-driven membranes that effectively remove colloidal and suspended particles and require a small footprint [3]. However, low-pressure-driven membranes are not effective at removing ionic contaminants such as heavy metals [4], and thus many physicochemical strategies have been proposed to increase their ionic removal efficiency.…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Ion-Exchange Fabric/Ceramic Membrane System to Remove As(V), Zn(II), and Turbidity from Wastewater

et al. 2020

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Ceramic membranes and ion exchangers are effective at removing turbidity and ionic contaminants from water, respectively. In this study, we demonstrate the performance of a hybrid ion-exchange fabric/ceramic membrane system to treat metal ions and turbidity at the same time in synthetic wastewater. The removal rate of As(V) and Zn(II) by the ceramic membrane increased with solution pH, while turbidity was completely removed regardless of the solution pH. The main reaction of As(V) removal was adsorption at solution pH 6 and precipitation at solution pH 8, whereas phase-change was the predominant reaction for Zn(II) removal at both solution pH values. The removal efficiency of the ion-exchange fabric was affected by the solution pH, with the maximum removal capacity of As(V) occurring at solution pH 4. The As(V) adsorption capacity of the ion-exchange fabric reached equilibrium within 120 min. The ion-exchange capacity of the ion-exchange fabric was compared with commercial ion-exchange fibers. The regeneration efficiency of the ion-exchange fabric using 0.1 M NaCl solution was around 95% on average and decreased slightly as the number of regeneration cycles was increased. Over 80% of As(V) and Zn(II) were steadily removed at solution pH 6 by the hybrid ion-exchange fabric/ceramic membrane system. Reduced flow rate and removal capacity were recovered through a backwashing process during continuous treatment with the hybrid ion-exchange fabric/ceramic membrane system.

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Submerged low-cost pyrophyllite ceramic membrane filtration combined with GAC as fluidized particles for industrial wastewater treatment

Cited by 60 publications

References 49 publications

Diethylene Glycol-Assisted Organized TiO2 Nanostructures for Photocatalytic Wastewater Treatment Ceramic Membranes

Diethylene Glycol-Assisted Organized TiO2 Nanostructures for Photocatalytic Wastewater Treatment Ceramic Membranes

Deduction of Organic and Inorganic Pollutant from Sugarcane Processing Plant Effluent by Thermal-oxidation and Electro-oxidation Processes in Batch Experiment

A Hybrid Ion-Exchange Fabric/Ceramic Membrane System to Remove As(V), Zn(II), and Turbidity from Wastewater

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