shaymaa hamza Anber

To treat produced water (PW), this work uses the mechanical design of the Digital Baffle Electro Photo Catalytic Batch Reactor (DBEPCB) method as a viable supernumerary. Box Behnken Design (BBD) of Response Surface Methodology (RSM) in Digital Baffle Oxidation Reactor studied the electro reactor design consisting of anode and cathode electrodes made of aluminum and iron correspondingly, with a mechanical mixer for mixing the PW with TiO2 concentration to maximize presentation with optimization design methods. A second-order obvious relation between the metal removal and important factors were shown by the high coefficient value (R2 = 0.967). The validity and dependability of the proposed technique were evaluated through additional statistical analysis. Founded on unresolved values, a predicted regression model was created, and it showed excellent agreement with experimental values. Based on important parameters, this model produced the best equation for the experiential model to prediction copper removal (CR). Rendering to the BBD, at pH 9, 300 rpm, 50 min of electrolysis, and 100 ppm of TiO2 concentration, the ratio of CR augmented to 98.4%. According to the study's assumptions, the electro-catalytic technology that has been enhanced may be a dependable way to alleviate the ecological effects of PW and support maintainable wastewater treatment approaches.

This paper assesses the efficiency of various electrode combinations in treating Refinery Wastewater (RWW) using electrocatalytic oxidation (ECO) to determine the optimal operating conditions in the reactor, specifically focusing on energy consumption for organic removal. The Box-Behnken experimental design and ANOVA analysis were employed for this investigation. The applied potential across all electrodes was identified as the most influential operating parameter. X-ray diffraction analysis confirmed the typical crystalline nature of the by-products formed, which were predominantly amorphous or poorly crystalline in structure. During the Electrochemical Sequential Chlorination (ESC) process, various oxidants including active chlorine species and oxidizing radicals were generated, contributing to the oxidation of organic compounds in the aqueous solution. Additionally, the functional groups present in zinc oxide were characterized using Fourier Transform Infrared (FT-IR) spectroscopy. The study yielded a maximum organic removal efficiency of 98.2%. Furthermore, it was observed that the operating conditions of the electrodes exhibited similar trends in specific energy consumption (SEC) for organic removal, with an energy consumption of 39.11 kWh/m3.

This study explains the mechanical design of a mixer with a focus on the fluid forces generated by the fluid continuum in the mixing reactor on the impellers. The research demonstrates that the forces are caused by transient asymmetries in fluid flow that act on the mixing impeller. The mixer shaft and gear reducer receive these dynamic loads from the impeller blades. A general equation for the fluid force behavior can be developed. The research also stresses on the significance of the mechanical interaction of the mixing process with the mixing vessel and impeller. Four parameters were measured; impeller speed for coagulation and flocculation, mixing time for coagulation, and flocculation. The experimental results in the final section will explain that impellers with four blades provide higher oil