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6CCVD Research

Effect of Flow Rate on Electrochemical Oxidation of Landfill Leachate Using DSA and BDD Anode

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2020-05-01
JournalIOP Conference Series Earth and Environmental Science
AuthorsErvin Nurhayati, Arseto Yekti Bagastyo, Deviani Dwi Hartatik
InstitutionsSepuluh Nopember Institute of Technology
Citations2

Abstract

Section titled ā€œAbstractā€

Abstract The leachate produced in municipal mixed waste landfill contains mostly organic pollutants in various forms. Biological treatment that popularly applied for the treatment only capable of removing biodegradable portion of the organics whilst the recalcitrant parts will leave the system untreated. Therefore, a pretreatment prior to biological process to increase biodegradability of leachate is essential. The physicochemical method such as electrochemical oxidation is an appropriate pretreatment alternative because it has high efficiency in degrading such pollutants. The purpose of this study was to examine the effect of flow rate (1.5 and 5 mL s āˆ’1 ) and anodes (boron-doped diamond (BDD) and dimensionally stable anode (DSA)) on the efficiency of electrochemical oxidation process to degrade leachate. The parameters analyzed were COD, BOD, ratio of BOD 5 /COD (biodegradability index, BI), TDS and pH. The results showed that the increase in BI when BDD and DSA used were 0.386 and 0.179, respectively. The best COD removal was achieved by BDD and DSA at current density of 30 mA cm āˆ’2 with the flow rate of 5 mL s āˆ’1 . BDD could remove 83 % COD (1.56 g) while DSA 68 % (1.08 g) with specific energy consumption of 0.00268 kWh g āˆ’1 and 0.00186 kWh g āˆ’1 , respectively.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2017 - Review on landfill leachate treatment by electrochemical oxidation: Drawbacks, challenges and future scope
  2. 2008 - Landfill leachate treatment: review and opportunity [Crossref]
  3. 2011 - Treatment of a sanitary landfill leachate using combined solar photo-Fenton and biological immobilized biomass reactor at a pilot scale [Crossref]
  4. 2004 - Membrane bioreactors conventional biological treatment of landfill leachate: a brief review [Crossref]
  5. 2014 - Nitrogen and organic load removal from sanitary landfill leachates by anodic oxidation at Ti/Pt/PbO2, Ti/PtSnO2-Sb2O4 and Si/BDD [Crossref]
  6. 2016 - Electrochemical treatment of mature landfill leachate using Ti/RuO2-IrO2 and Al electrode: optimization and mechanism [Crossref]
  7. 2010 - Boron-doped diamond anodic treatment of landfill leachate: evaluation of operating variables and formation of oxidation by-products [Crossref]
  8. 2016 - Electrochemical oxidation of biological pretreated and membrane separated landfill leachate concentrates on boron doped diamond anode [Crossref]

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