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| Optimization of Adsorption of Fluoride Ions in Wastewater with Microwave Red Mud by Response Surface Method |
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Received:April 10, 2023
Revised:April 11, 2023
Accepted:April 18, 2023
Published Online:August 11, 2023
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| DOI：doi：10.3969/j.issn.1007-7545.2023.09.013 |
| KeyWord:red mud; response surface method; fluorine-containing wastewater |
| Author | Institution |
| ZHANG Yongchen |
河南华慧有色工程设计有限公司 |
| TIAN Ye |
中铝郑州有色金属研究院有限公司 |
| LIU Zhongkai |
中铝郑州有色金属研究院有限公司 |
| KANG Zeshuang |
中铝郑州有色金属研究院有限公司 |
| XU Gangzheng |
河南华慧有色工程设计有限公司 |
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| Abstract: |
| To optimize the technical method of microwave red mud adsorption of fluorine-containing wastewater, based on the response surface method (RSM), the influences of three influencing factors (microwave power, adsorption time and wastewater temperature) on adsorption rate of fluoride ions in red mud wastewater were established. The influence of each experimental factor or interaction on fluorine ion adsorption was studied by ANOVA. The results show that the optimum experimental conditions obtained after response surface optimization are microwave power of 308 W, wastewater temperature of 15 ℃, and adsorption time of 22 min. The predicted adsorption efficiency is 96.83%, and the actual adsorption efficiency is 96.08%. The regression model established by response surface can predict the adsorption rate of microwave red mud to adsorb fluoride ions in wastewater, and the error is only 0.77%. |
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