Advertisement

Assessment of Removal of Mercury from Landfill Leachate by Electrocoagulation

  • Sushmita DeEmail author
  • Tumpa Hazra
  • Amit Dutta
Chapter

Abstract

In the recent times treatment of landfill leachate by nonconventional method such as electrochemical process has been increasing for its treatment efficiency. Among the electrochemical techniques, the process of electrocoagulation (EC) has largely been employed to remove heavy metals from municipal and industrial wastewaters. However, solid waste landfill leachate treatment with the aim of heavy metal removal especially mercury (Hg) has not been studied so much. Thus in this study the efficacy of the process of electrocoagulation using iron sacrificial electrodes has been evaluated for Hg removal from landfill leachate. Different operating conditions were studied for the removal of Hg which includes pH, inter-electrode distance, current density and operating time. The results of the batch experiments showed a maximum removal of 82.72% of Hg at the optimum operating conditions of current density of 4.93 mA/cm2, electrolysis time of 60 min, pH 7 and inter-electrode distance of 2.5 cm.

Keywords

Electrocoagulation Landfill leachate Hg removal Iron electrodes 

References

  1. 1.
    De S, Maiti SK, Hazra T, Debsarkar A, Dutta A (2016) Leachate characterization and identification of dominant pollutants using leachate pollution index for an uncontrolled landfill site. Glob J Environ Sci Manag 2(2):177–186Google Scholar
  2. 2.
    Öman CB, Junestedt C (2008) Chemical characterization of landfill leachates–400 parameters and compounds. Waste Manag 28(10):1876–1891PubMedCrossRefGoogle Scholar
  3. 3.
    Eggen T, Moeder M, Arukwe A (2010) Municipal landfill leachates: a significant source for new and emerging pollutants. Sci Total Environ 408(21):5147–5157PubMedCrossRefGoogle Scholar
  4. 4.
    Nanseu-Njiki CP, Tchamango SR, Ngom PC, Darchen A, Ngameni E (2009) Mercury (II) removal from water by electrocoagulation using aluminium and iron electrodes. J Hazard Mater 168(2):1430–1436PubMedCrossRefGoogle Scholar
  5. 5.
    De S, Hazra T, Dutta A (2017c) Treatment of landfill leachate by integrated sequence of air stripping, coagulation-flocculation and adsorption. Environ Dev Sustain.  https://doi.org/10.1007/s10668-017-0053-3 CrossRefGoogle Scholar
  6. 6.
    Maiti SK, De S, Hazra T, Debsarkar A, Dutta A (2016) Characterization of leachate and its impact on surface and groundwater quality of a closed dumpsite: a case study at Dhapa, Kolkata, India. Procedia Environ Sci 35:391–399CrossRefGoogle Scholar
  7. 7.
    De S, Maiti SK, Hazra T, Debsarkar A, Dutta A (2017a) Appraisal of seasonal variation of groundwater quality near an uncontrolled municipal solid waste landfill in Kolkata, India. Glob NEST J 19(3):367–376CrossRefGoogle Scholar
  8. 8.
    De S, Maiti SK, Hazra T, Dutta A (2017b) Evaluation of the impact of landfill leachate on groundwater quality in Kolkata, India. Pollution 3(3):443–452Google Scholar
  9. 9.
    Fernandes A, Pacheco MJ, Ciríaco L, Lopes A (2015) Review on the electrochemical processes for the treatment of sanitary landfill leachates: present and future. Appl Catal B Environ 176:183–200CrossRefGoogle Scholar
  10. 10.
    Kobya M, Ciftci C, Bayramoglu M, Sensoy MT (2008) Study on the treatment of waste metal cutting fluids using electrocoagulation. Sep Purif Technol 60(3):285–291CrossRefGoogle Scholar
  11. 11.
    Daneshvar N, Sorkhabi HA, Kasiri MB (2004) Decolorization of dye solution containing Acid Red 14 by electrocoagulation with a comparative investigation of different electrode connections. J Hazard Mater B112:55–62CrossRefGoogle Scholar
  12. 12.
    Chattopadhyay S, Dutta A, Ray S (2009) Municipal solid waste management in Kolkata, India – a review. Waste Manag 29(4):1449–1458PubMedCrossRefGoogle Scholar
  13. 13.
    Ministry of Environment, Forests and Climate Change (MOEFCC) (2016) Municipal solid waste management rules. New Delhi, India. Date of access: 12/04/2017. http://www.moef.nic.in/content/so-1357e-08-04-2016-solid-waste-management-rules-2016
  14. 14.
    APHA, AWWA, WPCF (2012) Standard methods for the examination of water and wastewater, 22nd edn. American Public Health Association, Washington DCGoogle Scholar
  15. 15.
    Sherestha R, Fischer R, Rahner D (2003) Behavior of cadmium, lead and zinc at the sediment–water interface by electrochemically initiated process. Colloids Surf A Physicochem Eng 222:261–271CrossRefGoogle Scholar
  16. 16.
    Lu X, Huangfu X, Ma J (2014) Removal of trace mercury (II) from aqueous solution by in situ formed Mn-Fe (hydr)oxides. J Hazard Mater 280:71–78PubMedCrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of Civil EngineeringJadavpur UniversityKolkataIndia

Personalised recommendations