Design and optimisation of electrocoagulation for use in wastewater treatment.
Translated title
Design og optimering af electrocoagulering til brug i spildevands behandling.
Author
Duus, Silas Alf Christian
Term
4. Term
Education
Publication year
2020
Submitted on
2020-06-04
Pages
38
Abstract
Elektrokoagulation er en metode, hvor elektrisk strøm får opløste eller suspenderede partikler i en væske til at klumpe sammen, så de kan fjernes. Dette projekt undersøger, hvordan en elektrokoagulationscelle kan udformes under faste driftsbetingelser: strømtæthed, koncentration, elektrodeopstillinger og gennemstrømningshastighed. En virtuel model af cellen blev opbygget i COMSOL Multiphysics 5.5 for at simulere, hvordan væsken bevæger sig gennem enheden, og for at undersøge de turbulente hastigheder, som opstår omkring rækken af elektroder. Derudover analyserer studiet den elektriske potentielforskel (spænding), der kræves for at drive processen, ved at anvende Nernst-ligningen sammen med standard reduktionspotentialer for jern-elektroder. Samlet set giver simuleringerne og beregningerne et grundlag for at forstå, hvordan strømningsforhold og elektrokemiske krav påvirker driften af en elektrokoagulationscelle.
Electrocoagulation is a technique in which an electrical current helps dissolved or suspended particles in a liquid clump together so they can be removed. This project explores how to design an electrocoagulation cell under fixed operating conditions: current density, solution concentration, electrode arrangements, and flow rate. A virtual cell was built in COMSOL Multiphysics 5.5 to simulate how liquid moves through the device and to examine the turbulent velocities that occur around the array of electrodes. In addition, the study analyzes the electrical potential (voltage) required to run the process by applying the Nernst equation together with standard reduction potentials for iron electrodes. Taken together, these simulations and calculations provide a basis for understanding how flow conditions and electrochemical requirements shape the operation of an electrocoagulation cell.
[This abstract was generated with the help of AI]
Documents