| Issue |
E3S Web Conf.
Volume 364, 2023
The 3ʳᵈ Edition of Oriental Days for the Environment “Green Lab. Solution for Sustainable Development” (JOE3)
|
|
|---|---|---|
| Article Number | 02011 | |
| Number of page(s) | 5 | |
| Section | Pollution & Natural Risks | |
| DOI | https://doi.org/10.1051/e3sconf/202336402011 | |
| Published online | 23 January 2023 | |
Elimination of orthophosphate from synthetic leachate using adsorption on bentonite clay
1 Environmental Management and Civil Engineering Research Team, National School of applied sciences of Al Hoceima, Abdelmalek Essaâdi University, Tetouann, Morocco.
2 Solid Mineral Chemistry, Applied Chemistry and Environment Laboratory, Faculty of Sciences, Mohammed First University, Oujda, Morocco.
3 Applied chemistry research unit, Faculty of Sciences and techniques of Al Hoceima, Abdelmalek Essaâdi University, Tetouan, Morocco.
* Corresponding author: charki.asmae.ca@gmail.com
The composition of leachates is very variable and rich in toxic compounds, which requires treatment before discharge into the natural environment in order to avoid their impact on the environment and/or human health and to comply with the requirements of regulatory discharge standards in the natural environment. Among the parameters indicating pollution by leachates, we have COD, BOD5, conductivity, pH, the presence of ammonium ions, nitrite, nitrate, chloride, orthophosphate, etc. This study presents the results of synthetic leachate orthophosphate adsorption tests on bentonite clays. For the determination of the orthophosphate concentration in the synthetic leachate, before and after adsorption, we applied the method of Ultra-Violet adsorption spectroscopy. The adsorption capacity of bentonite, the amount needed and the removal efficiency were determined. The orthophosphate adsorption yield on bentonite reaches up to 32.6 % for 5 g/L of bentonite stirred for 4 hours and exceeds 39,19 % after 24 hours of stirring.
Key words: Leachate / Synthetic Leachate / Bentonite / Adsorption / Orthophosphate
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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