Coagulation of indigo blue present in dyeing wastewater using a residual bittern

2013 ◽  
Vol 104 ◽  
pp. 246-249 ◽  
Author(s):  
L.F. Albuquerque ◽  
A.A. Salgueiro ◽  
J.L. de S. Melo ◽  
O. Chiavone-Filho
Keyword(s):  
Dyeing Wastewater ◽  
Indigo Blue

Variation and comparison of biotoxicity during typical biological treatment of dyeing wastewater

2021 ◽  
pp. 1-8
Author(s):  
Na Liu ◽  
Xuehui Xie ◽  
Hong Jiang ◽  
Xiulin Zheng ◽  
Qingyun Zhang ◽  
...  
Keyword(s):  
Biological Treatment ◽  
Dyeing Wastewater

scholarly journals Particle Size Distribution Based Occurrence Features of Organic Components in Printing and Dyeing Wastewater Under a Treatment Process

2019 ◽  
Vol 118 ◽  
pp. 04009
Author(s):  
Yuan Li ◽  
Jie Liu ◽  
Yibiao Yu ◽  
Hao Zhu ◽  
Zheng Shen ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Reverse Osmosis ◽  
Treatment Process ◽  
Dyeing Wastewater ◽  
Wastewater Treatment Process ◽  
Printing And Dyeing Wastewater ◽  
Sedimentation Tank ◽  
The Relationship

A more detailed occurrence features of organic matters in the printing and dyeing wastewater, based on its particle size distribution (PSD) and along with a wastewater treatment process, was conducted to provide a support for advanced treatment. Results suggested that, (1) In the dyeing wastewater, the occurrence characteristic of COD was: soluble>supra colloidal>colloidal>settleable; However, for protein, the supra colloidal was dominant, followed by the soluble. The feature of the polysaccharide was consistent with COD’s. In the wastewater, 29.66% of COD could be attributed to proteins and 3.45% of the COD could be attributed to polysaccharides. (2) The relationship among the forms of COD in the primary sedimentation tank, aerobic tank, secondary sedimentation tank, and reverse osmosis-treated concentrated effluent was consistent, that was: soluble>colloidal>supra colloidal>settleable. (3) In the primary sedimentation tank, the settleable COD was almost completely removed; In the aerobic tank, the residual super colloidal COD was not much; After MBR-RO treatment, the COD in the reverse osmosis concentrated water was almost dissolved and only a little presented in other forms.

Study on Pretreatment of Dye Wastewater by Fenton Oxidation Process

2012 ◽  
Vol 627 ◽  
pp. 378-381
Author(s):  
Bi Rong Wang
Keyword(s):  
Reaction Time ◽  
Oxidation Process ◽  
Removal Rate ◽  
Fenton Oxidation ◽  
Dye Wastewater ◽  
Dyeing Wastewater ◽  
Reaction Conditions ◽  
Fenton Oxidation Process

Fenton pretreatment has been used for treating dye wastewater. The effects of the dos of H2O2 and FeSO4, reaction time and pH on the removal COD were investigated. It was found that, when the reaction conditions are as follows: COD 2850 mg/L dyeing wastewater, the dosage of H2O2 is 140mmol/L, FeSO4 17.02 mmol/L, pH 7.6, and reaction time 1.0 h, the CODcr of dye wastewater removal rate of up to 70%. Fenton pretreatment process of dye wastewater has a broad prospect.

Characterization, adsorption isotherm, and kinetic of mesoporous silica microspheres for dyeing wastewater

2021 ◽  
Vol 217 ◽  
pp. 358-366
Author(s):  
Jiawei Cui ◽  
Guanghui Wang ◽  
Chao Wang ◽  
Ping Ke ◽  
Qi Tian ◽  
...  
Keyword(s):  
Adsorption Isotherm ◽  
Mesoporous Silica ◽  
Dyeing Wastewater ◽  
Silica Microspheres ◽  
Mesoporous Silica Microspheres
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