Purification and Concentration of Caustic Mercerization Wastewater by Membrane Processes and Evaporation for Reuse

Date

2014-01-01

Author

Tunç, Müslün Sara
Yılmaz, Levent
Yetiş, Ülkü
Çulfaz Emecen, Pınar Zeynep

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

160
views

0
downloads

A membrane-based treatment strategy was developed for purifying the highly alkaline textile mercerization wastewater. 0.2-mu m MF and 100 kDa UF membranes were evaluated as pretreatment alternatives before 10 kDa UF and 200 Da NF membranes. Turbidity was almost totally removed by both pretreatment options, while UF (100 kDa) showed higher COD retention than MF. In total recycle mode of filtration, fouling of both UF and MF membranes were 80% reversible by physical and almost totally reversible (>= 97%) by chemical cleaning. In the second stage filtrations applied to the pretreated wastewater samples, NF could yield high (97-98%) COD retentions and low permeate COD concentrations (<= 22 mg/L), while 10 kDa UF could only reduce the COD concentration to 150 mg/L. While no NaOH was lost in the MF+UF process, the use of NF as second stage resulted in 12-17% NaOH retention. The permeate flux in all second stage processes were stable, implying that the majority of the feed components that would cause fouling had been removed in the pretreatment stages. Permeate of the MF+NF sequence was concentrated by evaporation with no foaming problems, showing that the hybrid process can be applied to recycle a purified and concentrated caustic stream to the mercerization process.

Subject Keywords

Microfiltration, Ultrafiltration, Nanofiltration, Caustic Textile Wastewater, Reuse

URI

https://hdl.handle.net/11511/42689

Journal

SEPARATION SCIENCE AND TECHNOLOGY

DOI

https://doi.org/10.1080/01496395.2014.914039

Collections

Department of Chemical Engineering, Article

Suggestions

OpenMETU
Core

Recovery of caustic from mercerizing wastewaters of a denim textile mill Varol, Cihangir; UZAL, NİĞMET; Dilek, Filiz Bengü; KİTİŞ, Mehmet; Yetiş, Ülkü (2015-03-20) The objective of this study was to evaluate caustic recovery from mercerizing wastewater originating from a denim textile producing plant using membrane technology. For this purpose, ultrafiltration (UF) and nanofiltration (NF) processes were considered. In the first stage, in an attempt to control the possible membrane fouling, pretreatment alternatives of flocculation, centrifugation, and microfiltration were evaluated. These pretreatment application alternatives were unsuccessful as they did not provide ...
Recovery of brackish water from reactive dyeing wastewater by ultrafiltration Erkanlı, Mert; ZAF, RUKEN DİLARA; Yılmaz, Levent; Çulfaz Emecen, Pınar Zeynep; Yetiş, Ülkü (2017-02-06) In this study, brackish water recovery from a real reactive dyeing textile effluent for reuse of water and salt was investigated. With the aim of improving the overall retention of species that are partly retained in a single stage, three different two-stage ultrafiltration scenarios were considered: 5 kDa followed by 5 kDa, 5 kDa followed by 2 kDa and 2 kDa followed by 2 kDa. The 2 kDa + 2 kDa scenario reduced the total organic carbon (TOC) from 239 +/- 9 mg/L to 41 +/- 7 mg/L, at 2 bar of transmembrane pr...
Biological treatment and nanofiltration of denim textile wastewater for reuse ŞAHİNKAYA, Erkan; UZAL, Nigmet; Yetiş, Ülkü; Dilek, Filiz Bengü (2008-05-30) This study aims at coupling of activated sludge treatment with nanofiltration to improve denim textile wastewater quality to reuse criteria. In the activated sludge reactor, the COD removal efficiency was quite high as it was 91 +/- 2% and 84 +/- 4% on the basis of total and soluble feed COD, respectively. The color removal efficiency was 75 +/- 10%, and around 50-70% of removed color was adsorbed on biomass or precipitated within the reactor. The high conductivity of the wastewater, as high as 8 mS/cm, did...
Determination of heavy metal concentration in feed and permeate streams of polymer enhanced ultrafiltration process Muslehiddinoglu, J; Uludağ, Yusuf; Ozbelge, HO; Yılmaz, Levent (1998-08-01) Polymer enhanced ultrafiltration (PEUF) is a newly developed method for the removal of heavy metals from aqueous solutions. This method was applied for the removal of mercury and cadmium with the presence of polyethyleneimine (PEI) as a water soluble polymer. After ultrafiltration experiments for metal-polymer mixtures, two separate streams, namely, retentate and permeate, former of which contains mainly metal-polymer complex and free polymer molecules while latter of which mainly contains free metal ions, ...
Treatment of softwood bleacbery effluents by Penicillium camemberti in anaerobic jars Taseli, BK; Gökçay, Celal Ferdi (2005-01-01) Penicillium camemberti was found to be very effective in treating softwood pulp bleaching effluents and chlorinated model compounds like PCP, 2-chlorophenol and trichloroacetic acid. This paper examines the ability of Penicillium camemberti to degrade softwood pulping and bleaching effluents in anaerobic jars. Softwood chlorinated pulping and bleaching effluents inoculated with Penicillium camemberti (20 ml in 25-ml universal tubes) were incubated under anaerobic conditions (oxoid anaerobic jars) at 25 degr...

Citation Formats

M. S. Tunç, L. Yılmaz, Ü. Yetiş, and P. Z. Çulfaz Emecen, “Purification and Concentration of Caustic Mercerization Wastewater by Membrane Processes and Evaporation for Reuse,” SEPARATION SCIENCE AND TECHNOLOGY, pp. 1968–1977, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42689.