Hybrid Industrial Waste water Treatment Using a Sono-Alternating Current-Electrocoagulation Technique with Power Usage Estimation

Abstract

Distillery industrialwastewater (DIW)was testedfor color and COD removal percentages using an electrochemical and advanced oxidation processes (AOPs). Specifically, the study compared direct/alternating–current–electrocoagulation (DC EC/AC-EC), sono (US), and direct/alternating current–electro coagulationcoupledwithsono(US) (DC-EC/USandAC-EC/US) processes.Alsoevaluatedweretheeffectsof theseprocedures onthepowerneededtotreatDIW.Experimentalresultsshowed that comparedtosingleprocesses suchasDC-EC, AC-EC, US, hybridDC-EC/US, andthehybridAC-EC/USprocessachieveda total coloreliminationefficiencyof100%andaCODelimina tionefficiencyof100%whileusingalowerpowerconsumption of 4.76kWhrm3. Theeffectsof important operational factors suchtreatmentduration,cycleofpulseduty, sonicationpower, current density, chemical oxygendemand, electrode spacing, electrodepairing, pH, concentrationof electrolyteon the% removal of CODandpower usageof DIWwere investigated usinghybridAC-EC/USprocess.WhenusingaFe/Feelectrode combination, theeffectivenessofCODremovalwas shownto beenhancedbyincreasingthetreatmentduration, current,US power, and decreasing the COD concentration, electrode spacing.Thestudyalsoprovidedtheresultsofaninvestigation intothesynergistic indexbetweenAC-ECandUSprocessand operationalcost.Basedonitsabilitytoefficientlyandeffectively removecontaminants fromwastewaterandindustrial effluent, theAC-EC/USapproachstandsoutamongtheothermethods.