We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Electrocoagulation Applied to Domestic Wastewater Treatment: Statistical Optimization and Validation in Different Real Matrices
Summary
Researchers optimized electrocoagulation parameters for domestic wastewater treatment using a statistical design-of-experiments approach, identifying a current density of 85 A/m² and pH 5.5 as optimal conditions that achieved up to 78.2% COD removal at an estimated operational cost of US$1.23 per cubic meter, supporting its use in decentralized and isolated community settings.
The increasing demand for sustainable water management has prompted the search for efficient domestic wastewater treatment technologies. Electrocoagulation (EC) has emerged as a promising alternative owing to its simplicity, efficiency, and potential for decentralized applications. This study investigated EC for treating domestic wastewater, focusing on optimizing operational parameters via the design of experiments (DoE). Initially, raw wastewater was characterized, followed by a fractional factorial design to screen for significant variables: operating time, current density, initial pH, and NaCl dosage. Results revealed that current density and pH were the most influential parameters on Chemical Oxygen Demand (COD) removal. Subsequently, a Central Composite Rotational Design (CCRD) optimized these key parameters. Optimal conditions were a current density of 85 A/m² and pH of 5.5, achieving COD removal efficiencies up to 78.2%. A cost analysis indicated the economic feasibility of EC for smaller effluent volumes, with an estimated operational cost of US$1.23 per cubic meter treated. Applying this methodology to real sewage matrices (Federal University of Sergipe WWTP and a residential condominium) showed variations in Biochemical Oxygen Demand (BOD), COD, and turbidity removal. These findings confirm EC's potential as a sustainable solution for domestic wastewater treatment in isolated communities.
Sign in to start a discussion.
More Papers Like This
Simultaneous removal of microplastics and benzalkonium chloride using electrocoagulation process: statistical modeling and techno-economic optimization
An electrocoagulation process simultaneously removed microplastics and the disinfectant benzalkonium chloride from water, achieving 82.5% microplastic and 90.35% DDBAC removal under optimized conditions of pH 7.4, 80 minutes, 0.05 M electrolyte, and 12.59 V.
Electrical Innovations in Electrocoagulation: Designing and Testing Prototypes for Sustainable Water Treatment
Researchers designed and tested an innovative electrocoagulation prototype incorporating an optimised electrical generator to improve coagulation efficiency and reduce energy consumption in industrial wastewater treatment. Experimental testing demonstrated reliable performance of the system for treating industrial effluents without chemical additives, with applicability particularly relevant for arid regions.
Tratamiento de aguas residuales mediante electrocoagulación: Análisis bibliométrico de publicaciones científicas y revisión de resultados
This review presents a bibliometric analysis of 3,146 scientific articles on electrocoagulation for wastewater treatment published from 1975 to 2024, identifying eight research clusters encompassing reactor configurations, electrode materials, and contaminant removal efficiency in both domestic and industrial wastewater applications.
Optimizing microplastic treatment in the effluent of biological nutrient removal processes using electrocoagulation: Taguchi experimental design
Researchers optimized an electrocoagulation process using aluminum electrodes to remove microplastics from biological wastewater treatment plant effluent. Using Taguchi experimental design, they identified the most important process variables affecting removal efficiency, including current density and treatment time. The study demonstrates that electrocoagulation can be an effective supplementary treatment step for reducing microplastic discharge from wastewater facilities.
A Taguchi-Based Optimization of Ultrasound-Assisted Electrocoagulation Use of Aluminum Electrodes for Laundry Wastewater Treatment
Researchers used a Taguchi L9 orthogonal array experimental design to optimise sono-electrocoagulation (SEC) with aluminium electrodes for treating laundry wastewater containing surfactants and microfibers, identifying optimal operating parameters for efficient removal.