Deakin University
Browse

File(s) not publicly available

Reclaiming spent liquor from cotton reactive dyebaths using nanofiltration membrane for possible reuse of water and salt

conference contribution
posted on 2003-01-01, 00:00 authored by Li Shu, T Waite, P Bliss, A Fane, M Pailthorpe, Veeriah Jegatheesan
During dyeing, salts are placed in a dyebath to aid the fixation of various dyes on to the fabric while bases are added to raise the pH from around neutral to pH 11. Afterwards, the used dyebath solution, called dyebath spent liquor, is discharged with almost all the salts and bases added as well as unfixed dyes. Consequently, a lot of raw materials are lost in the waste stream ending up in the environment as pollutants. In this study, possibilities of reusing water and salts of dyebathes were investigated, using a nanofiltration membrane. When the salt concentration in the spent liquor was increased from 10 to 80 g/L, the salt rejection by membrane was found to decrease initially; however, the salt rejection increased over the time, which was not expected. The aggregation of dye was also studied and found to decrease in the concentrate when the salt concentration was increased. This may be due to the aggregation of salt in the concentrate, which explains the increase in salt rejection. This information is useful for the textile industry in evaluating the treated water quality for the purpose of reuse.

History

Event

IWA Asia-Pacific Regional Conference (2003 : Bangkok, Thailand)

Series

Water science and technology

Publisher

IWA Publishing

Location

Bangkok, Thailand

Place of publication

London, England

Start date

2003-10-20

End date

2003-10-22

ISSN

0273-1223

ISBN-13

9781843394822

ISBN-10

1843394820

Language

eng

Publication classification

E1.1 Full written paper - refereed; E Conference publication

Editor/Contributor(s)

T Panswad, C Polprasert, S Karnchanawong

Title of proceedings

Water quality management and the environment in Asia (Asian waterqual 2003). : selected proceedings of Asian Waterqual 2003, the IWA Asia-Pacific Regional Conference, held in Bangkok, Thailand, 19-23 October 2003

Usage metrics

    Research Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC