Study on the adsorption performance of Cu2+ in wastewater by red mud
The treatment of copper-nickel wastewater has consistently posed a challenging problem in the field of environmental protection. In this experimental study, the adsorbent used was prepared from Bayer's method-derived red mud (RM). The adsorption characteristics of RM adsorbent on Cu2+ in copper...
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| Language: | English |
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Elsevier
2024-01-01
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| Series: | Desalination and Water Treatment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398624002856 |
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| author | Xurong Yang Canhua Li Wenqing Ma Jiamao Li Shanshan Feng Lanyue Zhang Aiqin Mao |
| author_facet | Xurong Yang Canhua Li Wenqing Ma Jiamao Li Shanshan Feng Lanyue Zhang Aiqin Mao |
| author_sort | Xurong Yang |
| collection | DOAJ |
| description | The treatment of copper-nickel wastewater has consistently posed a challenging problem in the field of environmental protection. In this experimental study, the adsorbent used was prepared from Bayer's method-derived red mud (RM). The adsorption characteristics of RM adsorbent on Cu2+ in copper-nickel wastewater, as well as the impact of Ni2+ on the removal effectcy of Cu2+, were investigated. The adsorption performance of Cu2+ in copper-nickel wastewater by adsorbent dosage, adsorption time and pH were investigated, and the adsorption mechanism was discussed. The adsorption process conformed to the pseudo-second-order kinetic model (R2 =0.986) and the Langmuir model (R2 =0.989), indicating that it was a monolayer chemical adsorption process. The raw materials were characterized using various techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray fluorescence (XRF). The results indicated that the adsorption process of Cu2+ and Ni2+ on RM was primarily influenced by surface chemical groups such as O-H, C-O-C, Si-C, and Si-O, among others. The adsorption rate of Cu2+ by RM could achieve 100% when the concentration of Cu2+ solution was 100 mg/L, with an optimal dosage of adsorbent at 0.20 mg/L and the best adsorption effect observed after 240 min. The adsorption of Cu2+ and Ni2+ by RM exhibits unidirectional competitive adsorption behavior. Furthermore,in competitive adsorption experiments, RM exhibits good selectivity towards Cu2+, with Ni2+ exhibiting minimal inhibitory effect on Cu2+ when the two elements coexist. Therefore, this paper offers potential research value for the large-scale application of RM in copper-nickel wastewater treatment processes. |
| format | Article |
| id | doaj-art-51d2b36c600a4dc484706bb981d65540 |
| institution | OA Journals |
| issn | 1944-3986 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj-art-51d2b36c600a4dc484706bb981d655402025-08-20T02:01:15ZengElsevierDesalination and Water Treatment1944-39862024-01-0131710025410.1016/j.dwt.2024.100254Study on the adsorption performance of Cu2+ in wastewater by red mudXurong Yang0Canhua Li1Wenqing Ma2Jiamao Li3Shanshan Feng4Lanyue Zhang5Aiqin Mao6School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan City, Anhui Province, ChinaSchool of Metallurgical Engineering, Anhui University of Technology, Ma’anshan City, Anhui Province, China; Anhui University of Technology Research Institute of Intelligent Equipment Technology Co, Ma’anshan City, Anhui Province, China; Corresponding author at: School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan City, Anhui Province, China.School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan City, Anhui Province, ChinaSchool of Materials Science and Engineering, Anhui University of Technology, Ma’anshan City, Anhui Province, ChinaSchool of Metallurgical Engineering, Anhui University of Technology, Ma’anshan City, Anhui Province, ChinaSchool of Metallurgical Engineering, Anhui University of Technology, Ma’anshan City, Anhui Province, ChinaSchool of Materials Science and Engineering, Anhui University of Technology, Ma’anshan City, Anhui Province, ChinaThe treatment of copper-nickel wastewater has consistently posed a challenging problem in the field of environmental protection. In this experimental study, the adsorbent used was prepared from Bayer's method-derived red mud (RM). The adsorption characteristics of RM adsorbent on Cu2+ in copper-nickel wastewater, as well as the impact of Ni2+ on the removal effectcy of Cu2+, were investigated. The adsorption performance of Cu2+ in copper-nickel wastewater by adsorbent dosage, adsorption time and pH were investigated, and the adsorption mechanism was discussed. The adsorption process conformed to the pseudo-second-order kinetic model (R2 =0.986) and the Langmuir model (R2 =0.989), indicating that it was a monolayer chemical adsorption process. The raw materials were characterized using various techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray fluorescence (XRF). The results indicated that the adsorption process of Cu2+ and Ni2+ on RM was primarily influenced by surface chemical groups such as O-H, C-O-C, Si-C, and Si-O, among others. The adsorption rate of Cu2+ by RM could achieve 100% when the concentration of Cu2+ solution was 100 mg/L, with an optimal dosage of adsorbent at 0.20 mg/L and the best adsorption effect observed after 240 min. The adsorption of Cu2+ and Ni2+ by RM exhibits unidirectional competitive adsorption behavior. Furthermore,in competitive adsorption experiments, RM exhibits good selectivity towards Cu2+, with Ni2+ exhibiting minimal inhibitory effect on Cu2+ when the two elements coexist. Therefore, this paper offers potential research value for the large-scale application of RM in copper-nickel wastewater treatment processes.http://www.sciencedirect.com/science/article/pii/S1944398624002856Red mudHeavy metalsCompetitive adsorptionCopper-nickel wastewater |
| spellingShingle | Xurong Yang Canhua Li Wenqing Ma Jiamao Li Shanshan Feng Lanyue Zhang Aiqin Mao Study on the adsorption performance of Cu2+ in wastewater by red mud Desalination and Water Treatment Red mud Heavy metals Competitive adsorption Copper-nickel wastewater |
| title | Study on the adsorption performance of Cu2+ in wastewater by red mud |
| title_full | Study on the adsorption performance of Cu2+ in wastewater by red mud |
| title_fullStr | Study on the adsorption performance of Cu2+ in wastewater by red mud |
| title_full_unstemmed | Study on the adsorption performance of Cu2+ in wastewater by red mud |
| title_short | Study on the adsorption performance of Cu2+ in wastewater by red mud |
| title_sort | study on the adsorption performance of cu2 in wastewater by red mud |
| topic | Red mud Heavy metals Competitive adsorption Copper-nickel wastewater |
| url | http://www.sciencedirect.com/science/article/pii/S1944398624002856 |
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