Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Application and Parameter Optimization of EKG Electrodes Based on the Wild Horse Optimizer in Horizontal Electric-Field Sludge Dewatering

Version 1 : Received: 8 January 2024 / Approved: 9 January 2024 / Online: 9 January 2024 (04:06:38 CET)

A peer-reviewed article of this Preprint also exists.

Shen, Y.; Wang, S.; Yan, C.; Wang, J.; Wang, C.; Zhang, C.; Kou, Y.; Yuan, D. Application and Parameter Optimization of Electro-Kinetic Geosynthetics Electrodes Based on the Wild Horse Optimizer in Horizontal Electric Field Sludge Dewatering. Water 2024, 16, 545. Shen, Y.; Wang, S.; Yan, C.; Wang, J.; Wang, C.; Zhang, C.; Kou, Y.; Yuan, D. Application and Parameter Optimization of Electro-Kinetic Geosynthetics Electrodes Based on the Wild Horse Optimizer in Horizontal Electric Field Sludge Dewatering. Water 2024, 16, 545.

Abstract

This study conducted experiments to optimize the electro-dewatering of sludge using a dynamic model calculation method and the Wild Horse optimizer. Specifically, we explored two factors that might influence dewatering: the composition of the electrode materials and the strength of the electrical field. Compared to other electrodes commonly used in electro-dewatering—such as RuO2/Ir2O3-Ti, graphite, Ir2O3/Ta2O5-Ti, and Ti—the Electro-kinetic Geosynthetics (EKG) electrode exhibited superior performance. This was determined by considering both energy consumption and model establishment. Our findings also identified electric-field strength as a crucial factor determining the final moisture content. As the electrical intensity increased, the dewatering effect improved, aligning with our model calculations. However, we observed a steep increase in energy consumption per kilogram of filtrate when the electric-field strength exceeded a certain threshold. To optimize the energy consumption of the dehydration process, we constructed a multi-factor model. The simulation results from this model confirmed that electric-field intensity is the primary factor affecting dehydration. It was established that 10 V/cm is a critical threshold for the process.

Keywords

dewatering model; wild horse optimizer; electro-dewatering; electric-field strength; horizontal electric field; sludge

Subject

Environmental and Earth Sciences, Water Science and Technology

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