| Titre : |
Reuse of textile wastewater treated by moving bed biofilm reactor coupled with membrane bioreactor |
| Type de document : |
texte imprimé |
| Auteurs : |
Xuefei Yang, Auteur ; VÃctor López-Grimau, Auteur ; Mercedes Vilaseca, Auteur ; Martà Crespi, Auteur ; Judit Ribera-Pi, Auteur ; Montse Calderer, Auteur ; Xavier Martinez-Llado, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 484-492 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Biofilms
Bioréacteurs
Eaux usées -- Analyse
Eaux usées -- Recyclage
Filtration
Membranes (technologie)
Teinture -- Fibres textiles
Textiles et tissus -- Industrie
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
A laboratory-scale pilot plant of moving bed biofilm reactor coupled with membrane bioreactor (MBBR-MBR) was studied with regard to wastewater treatment in the textile industry, and the reuse feasibility of treated water was investigated. The pilot plant comprised two connected parts: an aerobic tank filled with carriers and a submerged membrane tank. The MBBR-MBR system reduced the hydraulic retention time to 1 day, which is very promising compared with conventional biological treatment in the textile industry. The removal efficiency of chemical oxygen demand reached 93%, which is almost the maximum for a biological process treating this type of wastewater, as well as the colour removal performance, which achieved 85%. Additionally, 99% of total suspended solids were removed due to filtration. Furthermore, new dyeing processes reusing the treated water were performed. The quality of the new dyed fabrics with treated water was compared with reference fabrics. Colour differences between new dyed fabrics and reference fabrics were found to be within the general requirement of the textile industry (ΔECMC(2:1) < 1). The reuse of treated water in new dyeing processes is beneficial both for the industry and for the environment, because the textile sector is an intensive water consumer during both the dyeing and finishing processes. |
| Note de contenu : |
- METHODS : Characteristics of textile wastewater - Reactor set-up - Reuse of treated water in new dyeing processes - Analytical methods
- RESULTS AND DISCUSSION : HRT and mixed liquor suspended solids - Removal of COD - Colour removal - TSS and turbidity removal - Reuse of the treated effluent and salt (sodium chloride)
- Table 1 : Wastewater characteristics
- Table 2 : Carrier characteristics
- Table 3 : Membranes characteristics
- Table 4 : Chromatic coordinates and colour differences between fabrics dyed with the treated effluent and a reference dyeing process |
| DOI : |
https://doi.org/10.1111/cote.12543 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12543 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36505 |
in COLORATION TECHNOLOGY > Vol. 137, N° 5 (10/2021) . - p. 484-492
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Reuse of textile wastewater treated by moving bed biofilm reactor coupled with membrane bioreactor in COLORATION TECHNOLOGY, Vol. 137, N° 5 (10/2021)
