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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1681
|2 doi
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|a pubmed24n1120.xml
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|a (DE-627)NLM336102054
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|a (NLM)35075710
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|a DE-627
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|c DE-627
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|a eng
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|a Bouchareb, Raouf
|e verfasserin
|4 aut
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|a Water recovery from yarn fabric dyeing wastewater using electrochemical oxidation and membrane processes
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 26.01.2022
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|a Date Revised 07.12.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a © 2021 Water Environment Federation.
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|a This study intended to evaluate and compare the efficiency of electrochemical oxidation (EO), nanofiltration (NF), and reverse osmosis (RO) membranes processes in the treatment of yarn fabric dyeing wastewater (YFDW) in terms of chemical oxygen demand (COD) removal, color removal, salinity reduction, and conductivity removal. EO tests of the textile effluent were conducted under various current densities and solution pH conditions employing a graphite electrode. Membrane filtration experiments were conducted using two different NF membranes: NP010 and NP030 and two distinct RO membranes: BW30 and SW30 flat-sheet membranes. The experimental results showed that NF membrane process is not suitable for yarn fabric wastewater treatment showing low removal efficiencies for COD, color, and conductivity. However, both EO and RO membranes could reduce COD and color to high removal performances. EO results showed more than 99% of color removal and 80% of COD elimination at pH = 6 and current density of 50 mA/cm2 after 180 min of reaction. Using RO membrane for yarn fabric wastewater treatment demonstrated relatively complete removal of color concentration and 98% of COD elimination. However, EO process showed less performance in conductivity removal efficiency compared to the RO membranes. EO treatment of YFDW decreased conductivity by 31.2%, whereas RO membrane process reduced conductivity to a greater extent and recorded 97.1% of removal elimination percentage. Therefore, the treated water by RO membrane could be recycled back to the process such as washing and dyeing, in that way offering economic profits by decreasing water consumption and wastewater treatment cost. PRACTITIONER POINTS: Electrochemical oxidation and membrane filtration processes were combined for the treatment of yarn fabric dyeing wastewater (YFDW). A 100% color removal of color and 98.5% COD elimination efficiencies were obtained for the electrochemical oxidation (EO) + RO combined process. EO treatment of YFDW decreased conductivity by 32.7%, whereas the RO membrane process reduced conductivity to a greater extent and recorded 97.7% of removal elimination percentage
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|a Journal Article
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|a electrochemical oxidation
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|a graphite electrodes
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|a nanofiltration
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|a reverse osmosis
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|a yarn fabric dyeing wastewater
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|a Coloring Agents
|2 NLM
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|a Membranes, Artificial
|2 NLM
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|a Waste Water
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Bilici, Zeynep
|e verfasserin
|4 aut
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1 |
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|a Dizge, Nadir
|e verfasserin
|4 aut
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 94(2022), 1 vom: 16. Jan., Seite e1681
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
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|g volume:94
|g year:2022
|g number:1
|g day:16
|g month:01
|g pages:e1681
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|u http://dx.doi.org/10.1002/wer.1681
|3 Volltext
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