Phenolic Compounds Removal from Olive Mill Wastewater Using the Composite of Activated Carbon and Copper-Based Metal-Organic Framework

As the industry of olive oil continues to grow, the management of olive mill wastewater (OMW) by-products has become an area of great interest. While many strategies for processing OMW have been established, more studies are still required to find an effective adsorbent for total phenolic content uptake. Here, we present a composite of a Cu 1,4-benzene dicarboxylate metal-organic framework (Cu (BDC) MOF) and granular activated carbon (GAC) as an adsorbent for total phenolic content removal from OMW. Experimental results demonstrated that the maximum adsorption capacity was 20 mg/g of total phenolic content (TPC) after 4 h. using 2% wt/wt of GAC/Cu (BDC) MOF composite to OMW at optimum conditions (pH of 4.0 and 25 degrees C). The adsorption of phenolic content onto the GAC/Cu (BDC) MOF composite was described by the Freundlich adsorption and pseudo-second-order reaction. The adsorption reaction was found to be spontaneous and endothermic at 298 K where Delta S degrees and Delta H degrees were found to be 0.105 KJ/mol and 25.7 kJ/mol, respectively. While Delta Go value was -5.74 (kJ/mol). The results of this study provide a potential solution for the local and worldwide olive oil industry.

Automated summary

With the continuous growth of the olive oil industry, the management of olive mill wastewater (OMW) by-products has become a topic of great interest. In this study, a composite of a Cu 1,4-benzene dicarboxylate metal-organic framework (Cu (BDC) MOF) and granular activated carbon (GAC) was used as an adsorbent for removing total phenolic content from OMW. The experimental results showed that the maximum adsorption capacity was 20 mg/g of total phenolic content (TPC) after 4 hours of treatment using 2% wt/wt GAC/Cu (BDC) MOF composite at pH 4.0 and 25 degrees C. The adsorption reaction was described by the Freundlich adsorption and pseudo-second-order reaction models, and it was found to be spontaneous and endothermic. The findings of this study provide a potential solution for the olive oil industry worldwide.