Applicability of nano zero valent iron (nZVI) in sono _ Fenton process

[摘要] Fenton process is one of the advanced oxidation processes (AOPs) used to remove complex organic pollutants in wastewater. In this study, instead of iron sulfate (FeSO4), nano zero valent iron (nZVI) was used as a major source of ferrous iron (Fe2+). In order to enhance the process, ultrasound was utilized in this study. Results show that, with the aid of ultrasound, nZVI produced more Fe2+compared to FeSO4at pH 2. Furthermore, combination of higher intensity and longer sonication time in Fenton process acceleratde the chemical oxygen demand (COD) removal from palm oil mill effluent (POME). Through the process, 80% of COD content was removed within 2 hours instead of 24 hours of silent degradation.

[发布机构] Department of Civil and Structural Engineering, Universiti Kebangsaan Malaysia (UKM), Malaysia^1;School of Environmental Engineering, Universiti Malaysia Perlis (UniMAP), Malaysia^2

[效力级别] 化学

[关键词] Advanced oxidation process;Chemical oxygen demand removals;Fenton process;Ferrous iron;Iron sulfates;Nano zero-valent irons;Palm oil mill effluents;Sonication time