Research on dispose of wastewater from printing and dyeing by CWF combined with Iron-carbon Microelectrolysis

2017 International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Chen, Xin^1 ; Ye, Tingjin^2 ; Xu, Zizhen^1 ; Chen, Xiaogang^1 ; Shi, Liang^1 ; He, Lingfeng^1 ; Zhang, Yongli^1

School of Environmental and Chemistry Engineering, Foshan University, Foshan, China^1

Foshan Environmental Protection Investment Co., Ltd., Foshan, China^2

关键词: Carboxymethyl chitosan;    COD removal efficiency;    Decolorization rates;    Dyeing wastewater;    Printing and dyeing;    Printing and dyeing wastewaters;    Processed materials;    Turbidity removal;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/322/4/042038/pdf
DOI  :  10.1088/1757-899X/322/4/042038

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The carboxymethylchitosan cladding coal ash (CWF) was oxidized by the high temperature using coal ash and sodium carboxymethyl chitosan as raw and processed material for treatment of simulated and actual printing and dyeing wastewater over iron-carbon micro-electrolysis. The results on pH and CWF dosage for effluent dispose were evaluated by the decolorization rate, COD removal efficiency and turbidity removal rate. The experimental results indicated that the decolorization rate was first augmented and then declined with the increase of pH, and attained a peak value when pH was at 5-6. The COD removal efficiency augmented with the augmented of pH, and attained a peak value when pH was 6-7. The turbidity removal rate was first increases and afterwards decreases with the augment of pH, and attained a peak value when pH was at 5-6. Furthermore, the optimum pH for the treatment of simulated dyeing wastewater was 6 over iron-carbon micro-electrolysis, which indicated that the appropriate pH can promote the degradation of wastewater.