Synthesis of a new polyunsaturated cationic crosslinker by a new micro‐polycondensation reaction as a critical modifier of polycationic flocculant for purifying dyeing wastewater

2021 ◽  
Author(s):  
Qiwen Yang ◽  
Yu Bai ◽  
Menghan Hu ◽  
Mengxi Li ◽  
Yikai Yu
Keyword(s):  
Polycondensation Reaction ◽  
Dyeing Wastewater

Treatment effects and mechanism of simulated dyeing wastewater by Elodea densa (Planch.) Casp.

2013 ◽  
Author(s):  
Du Liang ◽  
Li Ziyan ◽  
Du Jinhong ◽  
Zuo Qili ◽  
Zhao Jingfeng ◽  
...  
Keyword(s):  
Treatment Effects ◽  
Dyeing Wastewater ◽  
Elodea Densa

PURIFICATION OF DYEING WASTEWATER BY USING ELECTRICAL DISCHARGE PLASMA

2006 ◽  
Vol 5 (4) ◽  
pp. 675-676 ◽  
Author(s):  
Young Sun Mok
Keyword(s):  
Electrical Discharge ◽  
Discharge Plasma ◽  
Dyeing Wastewater

A mechanistic investigation of the Suzuki polycondensation reaction using MS/MS methods

2021 ◽  
Author(s):  
Michelle Yan Chi Ting ◽  
Lars Yunker ◽  
Ian C. Chagunda ◽  
Katherine Hatlelid ◽  
Meghan Vieweg ◽  
...  
Keyword(s):  
Catalytic Reactions ◽  
Polycondensation Reaction ◽  
Suzuki Polycondensation ◽  
Mechanistic Investigation ◽  
Reaction Proceeds

Understanding catalytic reactions is inherently difficult because not only is the catalyst the least abundant component in the mixture, but it also takes many different forms as the reaction proceeds....

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 Synthesis and characterization of PEDMCD as a flame retardant and its application in epoxy resins

RSC Advances ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 2756-2766
Author(s):  
Yi Zhang ◽  
Weiwei Yang
Keyword(s):  
Flame Retardant ◽  
Epoxy Resins ◽  
Synthesis And Characterization ◽  
Direct Polycondensation ◽  
Polycondensation Reaction ◽  
Highly Effective

In this study, a highly effective flame retardant agent, called polybicyclopentaerythritol phosphate-O-4-imino-p-phenylmethane-4-imino-2-chloro-1,3,5-s-triazine (PEDMCD), has been prepared through a direct polycondensation reaction.

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.

Application of fungal moving-bed biofilm reactors (MBBRs) and chemical coagulation for dyeing wastewater treatment

2011 ◽  
Vol 15 (3) ◽  
pp. 453-461 ◽  
Author(s):  
Hye Ok Park ◽  
Sanghwa Oh ◽  
Rabindra Bade ◽  
Won Sik Shin
Keyword(s):  
Wastewater Treatment ◽  
Dyeing Wastewater ◽  
Chemical Coagulation ◽  
Moving Bed ◽  
Biofilm Reactors

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.

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