Removal of Chromium from Electroplating Wastewater by Aminated Polyacrylonitrile Fibers
| Autor: | Liang Zhao, Xiang-Hua Lv, Jing-Ping Li, Jing Wang |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
inorganic chemicals
Chromatography technology industry and agriculture Polyacrylonitrile chemistry.chemical_element Sorption Contamination complex mixtures Pollution Electroplating wastewater chemistry.chemical_compound Chromium chemistry Ph range Environmental Chemistry Fiber Fourier transform infrared spectroscopy Waste Management and Disposal Nuclear chemistry |
| Zdroj: | Environmental Engineering Science. 28:585-589 |
| ISSN: | 1557-9018 1092-8758 |
| DOI: | 10.1089/ees.2010.0428 |
| Popis: | Batch and column studies were conducted to evaluate the performance of a novel aminated polyacrylonitrile (TE-PAN) fiber for total chromium removal from electroplating wastewater. Results from batch sorption studies showed that sorption equilibrium of chromium on TE-PAN was achieved within about 10 min. Temperature had no significant effect on sorption isotherms and estimated maximum uptake of total chromium was 133 mg/g. TE-PAN exhibited high removal efficiency over a wide pH range (2–7). Column studies demonstrated that exhausted TE-PAN fibers could be completely regenerated by 0.1 M NaOH for repeated sorption of chromium after as many as 15 sorption-regeneration cycles. FTIR and SEM analyses further validated the efficiency and stability of TE-PAN for chromium removal. Findings of this study have significant practical applications for treatment of chromium contaminated waters. |
| Databáze: | OpenAIRE |
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