Investigation of Heavy Metals Removal from Aqueous Solutions by Ceramic Filters | ||||
| MEJ- Mansoura Engineering Journal | ||||
| Volume 47, Issue 6, December 2022, Page 1-7 PDF (1.01 MB) | ||||
| Document Type: Research Studies | ||||
| DOI: 10.21608/bfemu.2022.141727.1274 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Gehan Mostafa Kotb Tolba  1; Ali Gad 2; Abdallah Mohammed 3; Ahmed Farghaly Farghaly4
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| 1Assistant Professor, at Chemical Engineering department, faculty of engineering, Minia university, Minia, Egypt | ||||
| 2Professor at Civil Engineering. Department, Faculty of Engineering, Assuit University | ||||
| 3Instructor at The Higher Institute of Engineering and Technology, Minia, Egypt | ||||
| 4Assistant Professor at Civil Engineering. Department, Faculty of Engineering, Assuit University | ||||
| Abstract | ||||
| The study utilized the membrane filtration technique to remove two common heavy metals from aqueous solutions; the first was Pb+2, and the second was Cd+2. Manufacturing of ceramic filters was carried out through the dimensions of 20 by 20 cm and thickness of 4 cm from local clay and sawdust at different percentages of sawdust: 1.0%, 2.5%, and 4.0%. The study examined the key factors affecting the removal efficiency of the ceramic filters, such as the initial pH value (5.5 and 7.0) and initial concentration (5.0 and 10.0 mg/L) of heavy metals at a constant pressure head of 30 cm. Moreover, the study applied a microstructural analysis using the scanning electronic microscope (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD) on the utilized ceramic membranes before and after the filtration process. The results showed that the percentages of heavy metals removal are more than 80% at pH 5.5 and 82% at pH 7.0. The efficiency of removing heavy metals from aqueous solutions declines as the initial metal concentrations increases while it increases with the applied water head. Further, although the sawdust percentages had a slight effect on the removal efficiency, ceramic filters with a sawdust percentage of 1.0% were the best. | ||||
| Keywords | ||||
| Wastewater; Heavy metals; Ceramic membranes; Filtration | ||||
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