Enhanced electrocoagulation–electroflotation for turbidity removal by Opuntia ficus indica cladode mucilage |
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| Authors: | Naima Djerroud Nawel Adjeroud Lamia Felkai‐Haddache Yasmina Hammoui Hocine Remini Farid Dahmoune Belkacem Merzouk Khodir Madani |
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| Affiliation: | 1. Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS), Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Algérie;2. Département de Microbiologie et de Biochimie, Faculté des Sciences, Université de M'sila, Algérie;3. Département de Biologie, Faculté des Sciences de la Nature et de la Vie et des Sciences de la Terre, Université de Bouira, Algérie;4. Département Hydraulique, Faculté de Technologie, Université de M'sila, B.P. 166, Ichbilia, M'sila, 28000, Algérie |
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| Abstract: | The optimisation of the electrocoagulation‐electroflotation (EC‐EF) process assisted by the mucilage of the Opuntia ficus indica (OFI), on the turbidity removal was performed through the response surface methodology (RSM). For a solution of 300 mg/L of silica gel, high turbidity removal (93.14% ± 1.31) was obtained under the optimal conditions of 2.5 mg/L, 21.2 V, 9.65 and 2.61 mS/cm for the mucilage concentration, voltage, pH and conductivity, respectively, this experimental value was close to the predicted value of 92.96% ± 0.3. OFI mucilage increases turbidity removal efficiency and reduces specific energy consumption at a fixed current density. The turbidity removal of the EC‐EF process was improved by 30.94% compared with the conventional EC–EF (EC–EF without OFI mucilage) which shows 62.02% ± 1.45 of turbidity removal. |
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| Keywords: | electrocoagulation– electroflotation (EC– EF) mucilage Opuntia ficus indica response surface methodology (RSM) turbidity removal |
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