Pilot Scale Study Based On Fenton Technology For Paper Industrial Wastewater Treatment

Abstract

 Paper industry is one of the most popular industries that consume large quantities of fresh water, in order to widen the range of water used for irrigation and to achieve safe disposal to the surface water, application of physical, chemical, and biological treatment technologies became an essential need. Many technologies can be applied to perform biological treatment but the sustainability and the effectiveness of Fenton technology made it the most suitable between all treatment technologies. A laboratory scale-pilot consist of four tanks with dimensions of 30×30×60 cm was established as a simulation of the biological treatment process. The pilot began with a primary sedimentation tank followed by a Fenton where H₂O₂ was added to perform the chemical treatment, after that water was fed into an aeration tank followed by a final settling tank to remove inorganic substances produced from the treatment process. Four trials were performed, the first trial was the activated sludge process as a control process, the second trial was performing Fenton process without any biological treatment process, the third trial was performing Fenton process as a pre-treatment stage of the activated sludge process, and finally activated carbon filter was added after Fenton process. Results showed that Fenton technology was effective and promising technology as it achieved TSS, BOD, COD, TKN, and TP removal efficiency up to 95.4%, 92.7%, 93.7%, 90.5%, and 91.7%, respectively during trial 4. The previous removal efficiency provided the effectiveness of Fenton process in reuse the paper industrial wastewater for irrigation purposes.