Title: Effect of repeated leachate recycling on leachate characteristics

Authors: Dinesh Kumar, Bharat Bhushan, Nathalene Christ, Babu J. Alappat

Addresses: Municipal Corporation of Delhi, Delhi 110 002, India. ' Department of Civil Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, New Delhi, India. ' Department de Genie Energetique et Environement, INSA Lyon 69621, France. ' Department of Civil Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, New Delhi, India

Abstract: In the present study, effect of repeated leachate recycling on leachate characteristics was observed in a laboratory experiment. Solid wastes of different ages, exhumed from a landfill in New Delhi (India), were used. Leachate generated from the same landfill was used to perform the experiments. Results show that repeated leachate recycling offers advantage in attenuating some pollutants in the leachate; however, more than two leachate-recycling passes may not be beneficial. Leachate Pollution Index (LPI) results show considerable reduction in the pollution potential of recycled leachate when compared with raw leachate.

Keywords: landfills; leachate recycling; bioreactor landfill; LPI; leachate pollution index; India; solid waste management; pollution potential.

DOI: 10.1504/WRSTSD.2010.032531

World Review of Science, Technology and Sustainable Development, 2010 Vol.7 No.3, pp.296 - 311

Available online: 05 Apr 2010 *

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