Akademik Veri Yönetim Sistemi
6. International Environmental Chemistry Congress, Trabzon, Türkiye, 5 - 08 Kasım 2024, ss.26, (Özet Bildiri)
The wastewater produced during table olive processing contains significant amounts of organic
substances, phenolic compounds, suspended solids, and salt. In addition, the table olive processing
wastewater has a characteristic dark color. Conventional treatment methods alone are often
insufficient to achieve environmental discharge standards. Generally, a combination of chemical and
biological treatment processes is typically employed to effectively treat this type of wastewater. In
this study, the objective is to investigate the feasibility of using the “Heterogeneous Fenton oxidation
process” as an alternative method to traditional chemical treatment or biological treatment
processes.
Experimental studies were designed using the Box-Behnken statistical design method to optimize the
heterogenous Fenton oxidation process. Magnetite (Fe₃O₄) and hydrogen peroxide (H₂O₂) were used
as catalyst and oxidant, respectively in the experiments. The effects of magnetite concentration,
hydrogen peroxide dose and reaction time were evaluated to assess maximum removal efficiencies.
The treatment efficiency was evaluated based on several independent parameters, including
chemical oxygen demand (COD), phenol, color, suspended solids (SS), and total organic carbon (TOC).
The highest removal efficiency for COD was found to be 95%, achieved with a hydrogen peroxide
dose of 3500 mg/L, a reaction time of 45 minutes, and 600 mg/L of magnetite. Additionally, under
the same reaction conditions, the removal efficiencies for color, phenols, and suspended solids were
20%, 50%, and 79%, respectively.
The results of this study demonstrate that the heterogeneous Fenton oxidation process is an
effective and promising alternative process for the treatment of table olive processing wastewater.
The oxidation process showed significant improvements in the removal of pollutants and can
potentially be implemented on a practical scale.