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.
