Reusing salt of reactive dyeing wastewater for reactive dyeing
- 10.2991/ifeesm-17.2018.226How to use a DOI?
- Reactive dye; Dyeing Wastewater; Salt Pollution; Wastewater Reusing;
In order to reduce salt pollution and reuse reactive dyeing wastewater efficiently, the residual dye was removed by calcium hydroxide, and the residual liquid was purified to remove the excess calcium hydroxide. The liquid was reused for reactive dyeing after the pH value was adjusted and the salinity was measured. The influence of calcium hydroxide on decolorization of dyeing wastewater was studied, and the dyeing properties of fabrics treated with recycled water and pure water were compared. The results showed that the residual dyes in reactive dye wastewater could be removed by calcium hydroxide, and the spectral curve of the treatment fluid is basically the same as that of pure water of the same salt concentration. The reuse dyeing has no influence on the color parameters and shade of fabric. After three times of reuse, the dyeing fastness is basically the same as that of dyed fabrics with pure water. Treatment of the dyeing wastewater of reactive dyes was studied, the corresponding treatment method was established. It provided a reference for reusing salt and water for dyeing wastewater of reactive dyes in this paper.
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Bo Yu AU - Long Wan AU - Guangfeng Wan AU - Xifeng Gao AU - Zaisheng Cai PY - 2018/02 DA - 2018/02 TI - Reusing salt of reactive dyeing wastewater for reactive dyeing BT - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017) PB - Atlantis Press SP - 1237 EP - 1242 SN - 2352-5401 UR - https://doi.org/10.2991/ifeesm-17.2018.226 DO - 10.2991/ifeesm-17.2018.226 ID - Yu2018/02 ER -