Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Açık Bilim Politikası
Açık Bilim Politikası
Frequently Asked Questions
Frequently Asked Questions
Browse
Browse
By Issue Date
By Issue Date
Authors
Authors
Titles
Titles
Subjects
Subjects
Communities & Collections
Communities & Collections
Recovery of brackish water from reactive dyeing wastewater by ultrafiltration
Date
2017-02-06
Author
Erkanlı, Mert
BURCU, KOÇER
ZAF, RUKEN DİLARA
Yılmaz, Levent
Çulfaz Emecen, Pınar Zeynep
Yetiş, Ülkü
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
6
views
0
downloads
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 pressure (TMP) until a volume reduction factor (VRF) of 2.5, while color was reduced to less than 1% of the feed. The first stage 2 kDa at 4 bar experienced slight flux decline, however, the fouling was fully reversible just with physical cleaning. With this scenario, when the VRF was increased to 10 to increase the water recovery and TMP was increased to 4 bar to increase the permeate flux, the permeate quality remained similar, even when the pollutant load in the feed stream was doubled. With the 5 kDa + 2 kDa scenario, while TOC and color removals were somewhat less, the average first stage flux was about four times higher than that of the first stage 2 kDa filtration, although flux decline and partial fouling irreversibility were still observed. On the other side, the 5 kDa + 5 kDa scenario was the poorest in performance as 5 kDa membrane showed slightly lower retention of color and TOC with higher flux decline and poorer fouling reversibility; although the permeate flux was high. Considering the advantages of high retention and high flux, the permeate samples from both 2 kDa + 2 kDa and 5 kDa + 2 kDa scenarios were tested in fabric dyeing and found to be successful even with a color that is different than the color of the wastewater. These findings suggest that the proposed treatment scenario to recover salty water for reuse can be applicable for wastewater of changing characteristics, which is typical for textile dyeing processes.
Subject Keywords
Membrane
,
Fouling
,
Reactive dyeing
,
Textile wastewater
,
Brackish water
,
Reuse
URI
https://hdl.handle.net/11511/35080
DOI
https://doi.org/10.1016/j.jclepro.2017.07.195
Collections
Department of Environmental Engineering, Conference / Seminar