Performance evaluation of two stage nanofiltration for treatment of textile effluent containing reactive dyes

Panda, Swapna Rekha; De, Sirshendu

doi:10.1016/j.jece.2015.06.004

Cited by 23 publications

(12 citation statements)

References 49 publications

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“…The final reject from the last stage is finally sent to the solar evaporation pan for natural evaporation. The dried salt from the solar pond will be collected in HDPE bags and stored inside a shed [13][14][15][16][17][18] . …”

Section:  Ro Thirdstagementioning

confidence: 99%

Study on Application of Membrane Technology in Treatment of Effluent from Dyeing Industries in Erode, TamilNadu

Prasanna¹,

Anandh²,

Kumar³

et al. 2018

IJET

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The textile dyeing industry is one of the hazardous polluting industries which uses water as the major source for their production and substantially the generation of wastewater leads to be a huge burden in treatment. The existing treatment methods adopted in most of the dyeing industries are said to be very old and its efficiency of removal is very less and at the same time it does not meet the standards for trade effluent discharge as prescribed by the regulatory boards. The study carried out on the application of Activated Carbon Filter (ACF) outlet in three stages of Reverse Osmosis results in reduction of 52% and the Total Dissolved Solids (TDS) is reduced to 226 ppm under the operation time of 10 hours. Significance reduction in pH, BOD, COD, TSS and Sulphates. The results say that the new technology of applying Nano-filtration and ultra-filtration will increase the efficiency of treatment. The effluent characteristics with the help this technology satisfy the standards.

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Section:  Ro Thirdstagementioning

confidence: 99%

Study on Application of Membrane Technology in Treatment of Effluent from Dyeing Industries in Erode, TamilNadu

Prasanna¹,

Anandh²,

Kumar³

et al. 2018

IJET

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“…Among them, NF is the most promising process since it exhibits a higher dye removal than UF . In addition, NF also has lower energy consumption and lower fouling tendency than RO . NF membranes not only have a high efficiency in removing dye color and turbidity but also eliminate chemical oxygen demand (COD) and conductivity, which makes the treated water reusable in textile industry processes .…”

Section: Introductionmentioning

confidence: 99%

Nanofiltration membrane cross‐linked by m‐phenylenediamine for dye removal from textile wastewater

Gunawan

Mangindaan

Khoiruddin

et al. 2018

Polymers for Advanced Techs

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In this work, m-phenylenediamine (MPD) is used to prepare cross-linked polyetherimide (PEI)-based nanofiltration (NF) membrane for treatment of dye containing wastewater. The effects of dope solution composition, cross-linking time, and dye concentration on membrane performance are investigated. Results indicate that the rejection of dye is increased with the increase of acetone concentration in the dope solution, cross-linking time, and dye concentration. Meanwhile, membrane flux showed the opposite trend. With the aid of SEM and FTIR analysis, the crosslinking between MPD and PEI is confirmed. The cross-linked membrane has thicker and dense selective layer compared to the unmodified membrane. The cross-linked NF membrane (PEI: 15 wt%; acetone: 20 wt%; cross-linking time: 10 minutes) showed good performance in filtration of synthetic dye wastewater (Reactive Red 120, 1500 ppm) with 98% dye rejection and 0.013 L m −2 hour −1 of flux at relatively low operating pressure (60 psi).

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“…Membrane technology, nanofiltration (NF) processes, in particular, has been widely used for the fraction and recovery of dyes and mixed salts in liquid solution. − Nanofiltration with a molecular weight cut off (MWCO) from 200 to 1000 Da has advantages in the separation process including low osmotic pressure, high flux, strong rejection to compounds > 300 Da, and low retention of monovalent salts. ,− However, the commercial nanofiltration membranes still have the drawback of high rejection of Na 2 SO 4 which is a common salt present in dye product and wastewater. He et al applied nanofiltration DL membrane (from GE) with a negative surface for removal of Reactive Brilliant Blue KN-R and Na 2 SO 4 at 10 bar and pH 4.4, which retained both 97.5% Na 2 SO 4 and 99.99% dye in the feed .…”

Section: Introductionmentioning

confidence: 99%

Tight Ultrafiltration Ceramic Membrane for Separation of Dyes and Mixed Salts (both NaCl/Na₂SO₄) in Textile Wastewater Treatment

Chen

Zhou

et al. 2017

Ind. Eng. Chem. Res.

133

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Commercial nanofiltration (NF) membranes have been used to separate dyes and salts in industry; however, NF membrane’s high rejection to divalent salts (i.e., Na2SO4) leads to a reduction of salt recovery. In this study, a tight ultrafiltration (t-UF) ceramic membrane (MWCO 8800 Da) is proposed to fractionate dyes and mixed salts (NaCl/Na2SO4) for textile wastewater treatment. Performance of the t-UF ceramic membrane and DK polymeric membrane (from GE) has been compared regarding to permeability, retention of reactive dyes, and permeation of salts. The t-UF ceramic membrane presents better permeability, competitive rejection of dye molecules (>98%), and reduced rejection of NaCl (<10%) and Na2SO4 (<30%) in comparison with DK membrane; the pure water permeability of t-UF membrane is at least 6 times that of DK membrane. In particular, the operation parameters (TMP, temperature, and pH) and solution environment (concentration and charges) have been intensively evaluated for dye/dual-salts separation efficiency in the membrane process. It also reveals that the t-UF ceramic membrane has performed negative rejection to chloride ions at low operating pressure in the dye and NaCl/Na2SO4 solution due to the electrostatic Donnan effect. Concentration of salt, valence of inorganic ions, and charge of dyes are found as having a significant effect on membrane separation performance. In conclusion, the strong retention of dyes and free permeation of salts (i.e., low retention) by the t-UF ceramic membrane proves that it can be applied to desalinate dyeing wastewater of high salinity and recover dyes and salts separately.

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Performance evaluation of two stage nanofiltration for treatment of textile effluent containing reactive dyes

Cited by 23 publications

References 49 publications

Study on Application of Membrane Technology in Treatment of Effluent from Dyeing Industries in Erode, TamilNadu

Study on Application of Membrane Technology in Treatment of Effluent from Dyeing Industries in Erode, TamilNadu

Nanofiltration membrane cross‐linked by m‐phenylenediamine for dye removal from textile wastewater

Tight Ultrafiltration Ceramic Membrane for Separation of Dyes and Mixed Salts (both NaCl/Na₂SO₄) in Textile Wastewater Treatment

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Performance evaluation of two stage nanofiltration for treatment of textile effluent containing reactive dyes

Cited by 23 publications

References 49 publications

Study on Application of Membrane Technology in Treatment of Effluent from Dyeing Industries in Erode, TamilNadu

Study on Application of Membrane Technology in Treatment of Effluent from Dyeing Industries in Erode, TamilNadu

Nanofiltration membrane cross‐linked by m‐phenylenediamine for dye removal from textile wastewater

Tight Ultrafiltration Ceramic Membrane for Separation of Dyes and Mixed Salts (both NaCl/Na2SO4) in Textile Wastewater Treatment

Contact Info

Product

Resources

About

Tight Ultrafiltration Ceramic Membrane for Separation of Dyes and Mixed Salts (both NaCl/Na₂SO₄) in Textile Wastewater Treatment