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Lead Remediation from Landfill Leachate by Electrocoagulation – A Laboratory-Scale Study

  • Tathagata Paul
  • Sanjib Kumar Maiti
  • Tumpa Hazra
  • Anupam Debsarkar
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Abstract

Treatment of raw leachate collected from an uncontrolled active landfill site by electrocoagulation method was carried out using iron electrodes in a batch reactor. The leachate was slightly alkaline (pH = 8.0) and contained various xenobiotic organics along with various heavy metals like lead (Pb), mercury (Hg), chromium (Cr), zinc (Zn), copper (Cu) etc. The effects of important parameters viz. initial pH, inter-electrode gap, charge density, current density and hydraulic retention time on lead removal were investigated. Assuming the reaction following a second order kinetics, a graph was plotted between 1/ (lead concentration) and time, which fitted well as a straight line with R2 = 0.958. The lead removal efficiency was observed to be maximum (90%) at pH 5.9, under 14.0A current at a hydraulic retention time of 70 min. The removal efficiency increased with the increase in current density, decrease in pH irrespective of inter-electrode distance. Use of iron electrode was found to be cost effective and economically feasible for treatment of leachate.

Keywords

Electrocoagulation Lead Landfill Leachate 

References

  1. 1.
    Wu JJ, Wu CC, Ma HW, Chang CC (2004) Treatment of landfill leachate by ozone-based advanced oxidation processes. Chemosphere 54(7):997–1003PubMedCrossRefGoogle Scholar
  2. 2.
    Tezcan Un U, Oduncu E (2014) Electrocoagulation of landfill Leachate with Monopolaraluminum electrodes. J Clean Energy Technol 2(1):15–17Google Scholar
  3. 3.
    Ilhan F, Kurt U, Apaydin O, Gonullu MT (2008) Treatment of leachate by electrocoagulation using aluminum and iron electrodes. J Hazard Mater 154(1):381–389PubMedCrossRefGoogle Scholar
  4. 4.
    Labanowski J, Pallier V, Feuillade-Cathalifaud G (2010) Study of organic matter during coagulation and electrocoagulation processes: application to a stabilized landfill leachate. J Hazard Mater 179(1):166–172PubMedCrossRefGoogle Scholar
  5. 5.
    Li X, Song J, Guo J, Wang Z, Feng Q (2011) Landfill leachate treatment using electrocoagulation. Procedia Environ Sci 10:1159–1164CrossRefGoogle Scholar
  6. 6.
    Shivayogimath CB, Watawati C (2014) Landfill leachate treatment by electrocoagulation process using iron sacrificial electrodes. Int J Renew Energy Environ Eng 02(03):180–184Google Scholar
  7. 7.
    Norma D, Fernandes A, Pacheco MJ, Ciríaco L, Lopes A (2012) Electrocoagulation and anodic oxidation integrated process to treat Leachate from a Portuguese sanitary landfill. Port Electrochim Acta 30(3):221–234CrossRefGoogle Scholar
  8. 8.
    GOVERNMENT OF INDIA, Ministry of Environment and Forest, Municipal solid waste management and handling rules, 2016Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Tathagata Paul
    • 1
  • Sanjib Kumar Maiti
    • 1
  • Tumpa Hazra
    • 1
  • Anupam Debsarkar
    • 1
  1. 1.Environmental Engineering Division, Department of Civil EngineeringJadavpur UniversityKolkataIndia

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