Dyes removal from textile wastewater using graphene based nanofiltration

Makertihartha, Igbn; Rizki, Zulhaj; Zunita, Megawati; Dharmawijaya, P. T.

doi:10.1063/1.4982336

Cited by 22 publications

(10 citation statements)

References 61 publications

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“…In addition to providing a selective layer for one of the reaction components, the membrane can also act as a catalyst support and even be catalytically actively itself. Therefore, membrane technology is widely applied in the world of synthesis and waste treatment [ 20 , 21 , 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

“…One of the membrane technology techniques considered to separate ions is nanostructured membrane technology. Graphene is one of the materials that has a nanostructure can be used as a thin and flexible membrane sheet with high chemical stability and high mechanical strength [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. Monolayer graphene membranes are accepted to be able to remove metal ions very effectively and efficient for wastewater due to their nanopores [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

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Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Zunita

2021

Membranes

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Mercury (Hg) is one of heavy metals with the highest toxicity and negative impact on the biological functions of living organisms. Therefore, many studies are devoted to solving the problem of Hg separation from wastewater. Membrane-based separation techniques have become more preferable in wastewater treatment area due to their ease of operation, mild conditions and also more resistant to toxic pollutants. This technique is also flexible and has a wide range of possibilities to be integrated with other techniques. Graphene oxide (GO) and derivatives are materials which have a nanostructure can be used as a thin and flexible membrane sheet with high chemical stability and high mechanical strength. In addition, GO-based membrane was used as a barrier for Hg vapor due to its nano-channels and nanopores. The nano-channels of GO membranes were also used to provide ion mobility and molecule filtration properties. Nowadays, this technology especially nanofiltration for Hg removal is massively explored. The aim of the review paper is to investigate Hg removal using functionalized graphene oxide nanofiltration. The main focus is the effectiveness of the Hg separation process.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Zunita

2021

Membranes

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“…Membrane technology is one of the well-known approaches used in wastewater treatment (5) and has been previously suggested for the removal of dye from effluents of textile industries (6)(7)(8)(9). Membranes with excellent stability, flux, and separation performance are of great importance in wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Azo dye removal via surfactant-assisted polyvinylidene fluoride membrane

Darbandi

Mousavi

Lotfabad

et al. 2021

Environ Health Eng Manag

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Background: Recently, concerns have been raised regarding the environmental and public health safety of azo dyes, the most widely used synthetic dyes. The membrane technique has been introduced as one of the efficient methods for dye removal treatments. Polyvinylidene fluoride (PVDF) membrane manipulated by surfactants was studied for removal of the azo dye, carmoisine. Methods: PVDF membrane was prepared via non-solvent-induced phase separation (NIPS) and used to remove the azo dye, carmoisine. Three nonionic surfactants including Tween 20, Tween 60, and Tween 80 were used individually as additives in casting solutions to improve PVDF membrane properties. Results: Fourier-transform infrared spectroscopy (FTIR) demonstrated the presence of functional groups of carbonyl (C=O) and hydroxyl (OH), assigned to Tween molecules, in the membrane chemical structure. All Tween species caused a decrease in the surface hydrophobicity of PVDF membranes illustrated by the reduced contact angles. Each Tween at a 2% concentration in the dope solution led to an increase in the pore-size of PVDF membranes, which was estimated by scanning electron microscopy (SEM). However, this impact was reversed at Tween concentrations of 4%. Membranes were assessed for dye removal efficiency and permeate flux in a cross-flow system. Permeability of PVDF membranes improved (~78%) with adding Tween 80 at a concentration of 2%. Tween 60 at a 2% concentration resulted in a ~45% increase in dye removal efficiency of PVDF membranes. And, atomic force microscopy (AFM) showed that Tween 60 increased membrane surface roughness. Conclusion: Surfactant-mediated changes in the surface properties of PVDF membrane improved dye removal efficacy.

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“…Nevertheless, this method requires large operational costs and long operating time (Sarria et al, 2002;Grandclement et al, 2017;Stamatelatou, 2017). Meanwhile, the adsorption process is not effective to be applied in a large-scale owing to a large amount of adsorbent required as well as the complexity and cost of chemicals for the regeneration process (Robinson et al, 2001;Makertihartha et al, 2017;Siddique et al, 2017). These problems encourage further research to find alternative technologies that are effective in dealing with industrial wastewater.…”

Section: Introductionmentioning

confidence: 99%

Integrated Electrocoagulation and Tight Ultrafiltration Membrane for Wastewater Reclamation and Reuse

Nugroho

Aryanti

Irawan

et al. 2019

Reaktor

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Wastewater reclamation and reuse have become an alternative to saving operational costs while reducing the impact of waste pollution. In this paper, integration of electrocoagulation (EC) and polysulfone-based ultrafiltration (UF-PSf) membranes were used for the mentioned purpose. The EC unit equipped with 7 (seven) pieces of E-shaped of Al electrodes, which operated at a current of 3 (three) Amperes and a residence time of 2 (two) hours. The waste samples obtained from textile and oil palm industries. The experimental results were compared based on product quality and economic feasibility. When used for textile waste treatment, the integrated EC-UF units reduced TDS, TSS, BOD, and COD by 77%, 95%, 70 -80%, and 60-70%, respectively. While in palm oil waste treatment, the TDS and TSS reduced by 92% and 98%. The electrode loss rate in palm oil waste treatment was 2 (two) times greater than textile waste. By assuming that the waste production capacity of both industries was 400 m3/day, the water production cost in textile waste treatment was Rp. 4,000/m3. While in the palm oil waste treatment, the water production cost was Rp. 6,000/m3. These results showed that the EC-UF unit could be used as an economical and environmentally friendly alternative process for reclamation of industrial wastewater that meets the clean water quality standards.

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Dyes removal from textile wastewater using graphene based nanofiltration

Cited by 22 publications

References 61 publications

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Graphene Oxide-Based Nanofiltration for Hg Removal from Wastewater: A Mini Review

Azo dye removal via surfactant-assisted polyvinylidene fluoride membrane

Integrated Electrocoagulation and Tight Ultrafiltration Membrane for Wastewater Reclamation and Reuse

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