Treatment of textile dyes containing wastewaters with PES/PVA thin film composite nanofiltration membranes

Babu, J. Sarat Chandra; Murthy, Z.V.P.

doi:10.1016/j.seppur.2017.04.002

Cited by 86 publications

(26 citation statements)

References 16 publications

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“…[10][11] Thus, the requirement of additional handling and disposal of secondary pollutants being produced and usage of a large amount of chemicals, renders both physical and chemical method of degradation of dye wastewater as unfeasible for real world applications. [12][13][14] Researchers have suggested practical microbial methods and enzymatic treatment techniques for azo dyes degradation. Microbial treatment of textile wastewater was observed to be more compelling than enzymatic degradation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Corncob Derived Biochar on Microbial Electroremediation of Dye Wastewater and Bioenergy Generation

et al. 2020

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This paper describes the potential of waste biomass derived biochar for improvement in the dye wastewater treatment in a microbial fuel cell (MFC). The complete MFC, an energy generating unit, was made with the waste products in order to demonstrate that low cost alternatives are available to replicate the positive results. Waste corncob derived biochar produced after acid modification has been evaluated as a supplement in an MFC for treatment of real dye wastewater (RDW). The two doses of sulfuric acid modified corncob biochar (SA‐MCB), (0.5 g and 1 g) and a blank (without any dose) were assessed for the effect on MFC performance. The maximum power density (49.92 W/m2), current density (0.28 A/m2), COD removal efficiency (88.39%), decolorization efficiency (81.6%) and TDS reduction (84.4%) were obtained with 0.5 g biochar dose. The Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR) analysis revealed the structural changes occurring on the SA‐MCB after use in the MFC. The SEM analysis revealed the better biofilm formation due to SA‐MCB deposition. Power density with 0.5 g of SA‐MCB dose improved to more than 24 times in comparison to the system without any such dose. The UV spectrophotometer analysis confirmed the azo bond deformation during treatment. The overall results suggest that the use of SA‐MCB biochar as anode material and as a supplement in the MFC system may provide an effective anode‐biofilm in MFCs for wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Effect of Corncob Derived Biochar on Microbial Electroremediation of Dye Wastewater and Bioenergy Generation

et al. 2020

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“…Only those molecules, whose size is larger than the pore dimension, can be rejected and removed. Generally, the dye molecules have a size ranging from 600 to 1,000 Da . Therefore, even if nanofiltration membranes, which have smaller pore size of 1–2 nm compared to microfiltration and ultrafiltration membranes, are used, dye residuals are difficult to be completely rejected and removed.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cationic Grafted‐Microfiltration Membrane of PSF‐g‐QPDMAEMA and Study on its Adsorption and Rejection Performance for Acid Dye

Gao

Men

2020

Polymer Engineering & Sci

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Chloromethylated polysulfone (CMPSF) microfiltration membrane were first prepared by using immersion-precipitation phase transformation method, and then CMPSF membrane was modified into aminated PSF membrane (AMPSF membrane). A surface-initiating system of -NH 2 /S 2 O 8 2− was constituted at the interface between AMPSF membrane and a aqueous solution, in which monomer dimethylaminoethyl methacrylate (DMAEMA) and initiator ammonium persulfate were dissolved. The graft polymerization of DMAEMA was successfully realized on AMPSF membrane, resulting in the grafted membrane PSF-g-PDMAEMA. And then quaternization modification of the grafted membrane PSF-g-PDMAEMA was performed, resulting in the cationic microfiltration membrane of PSF-g-QPDMAEMA. The isothermal adsorption experiments of PSF-g-QPDMAEMA membrane for two acid dyes, reactive brilliant red (RBR), and reactive light yellow (RLY), were carried out, and the permeation experiments were also conducted. The experimental results show that PSF-g-QPDMAEMA membrane has strong adsorption ability for acid dyes by right of the electrostatic interaction between the quaternary ammonium cations on the surface of PSF-g-QPDMAEMA membrane and the sulfonate anions in the molecules of acid dyes as well as by right of cation-π interaction between the quaternary ammonium cations on PSF-g-QPDMAEMA membrane and the aromatic rings in the molecules of acid dyes. PSF-g-QPDMAEMA membrane displays excellent rejection and removing performance for acid dyes in water. POLYM. ENG. SCI., 60:900-908, 2020.

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“…Many different purifying methods are used to treat this type of wastewater. Coagulation, chemical oxidation, electrochemical methods and sorption are applied to remove dyes from wastewater [1,[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. The coagulation process, conducted with magnesium hydroxide enhanced by addition of kaolin, was used to remove two reactive dyes: reactive red (X-3B) and reactive yellow (X-R) [9].…”

Section: Introductionmentioning

confidence: 99%

Application of Excess Activated Sludge as Waste Sorbent for Dyes Removal from their Aqueous Solutions

Pieczykolan

Płonka

2019

Ecological Chemistry and Engineering S

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Organic dyes are widely used in many industries (textiles, food, cosmetics, medicine and biology). These plants produce wastewater containing dyes. Even small amounts of dyes can cause a strong colour of wastewater. Therefore, it is very important to effectively remove residues of these pollutants from the wastewater, before discharging them into the environment. The sorption process is one of the methods used to remove dyes. However this method is often unprofitable economically in comparison with other dye removal processes, due to the high cost of commercial sorbents. Therefore, research is currently conducted in order to find waste materials that can be used as sorbents. The static sorption process of two dyes were carried out (Acid Red 18 and Acid Green 16) with the use of dried excess sludge. The activated sludge (excess) came from a municipal sewage treatment plant that purifies wastewater from carbon, nitrogen and phosphorus compounds. During the study the most favourable pH of the process and the contact time of the sorbent with the dyes were determined. It was observed that for both dyes the highest effectiveness of dye removal was obtained at pH = 2. The most favourable contact time was equal to 60 and 180 minutes for Acid Red 18 and Acid Green 16 respectively. In addition, in order to establish process parameters, a different models of sorption isotherm was examined. The studies showed that the sorption capacity (calculated based on Langmuir model) was much higher in the case of Acid Green 16 (qm = 434.8 mg/g) than for Acid Red 18 (qm = 109.9 mg/g). The experiments to evaluate the effect of pH, contact time on the process effectiveness and to determine the sorption isotherm were conducted at 293.15 K.

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Treatment of textile dyes containing wastewaters with PES/PVA thin film composite nanofiltration membranes

Cited by 86 publications

References 16 publications

Effect of Corncob Derived Biochar on Microbial Electroremediation of Dye Wastewater and Bioenergy Generation

Effect of Corncob Derived Biochar on Microbial Electroremediation of Dye Wastewater and Bioenergy Generation

Preparation of Cationic Grafted‐Microfiltration Membrane of PSF‐g‐QPDMAEMA and Study on its Adsorption and Rejection Performance for Acid Dye

Application of Excess Activated Sludge as Waste Sorbent for Dyes Removal from their Aqueous Solutions

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