Leachate valorization in anaerobic biosystems: Towards the realization of waste-to-energy concept via biohydrogen, biogas and bioelectrochemical processes

Péter Bakonyi, Jeyaprakash Dharmaraja, Sutha Shobana, László Koók, Tamás Rózsenberszki, Nándor Nemestóthy, Rajesh Banu J, Katalin Bélafi-Bakó, Gopalakrishnan Kumar

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Leachate generated in landfills is considered as a hazardous waste stream due to its composition and needs adequate treatment for environmental protection purposes. Nonetheless, a contemporary technology should not only be able to deal with its degradation, but at the same time, recover energy in various forms. Such valorization approaches with priority on these dual-aims are potentially those that rely on anaerobic biosystems. In the literature, processes considered on that matter include fermentative, digestive and bioelectrochemical set-ups to deliver energy-carriers such as biohydrogen (DF), biogas (AD) and electricity (BES), respectively. Moreover, to enhance the global efficiency of leachate utilization, it has been recently trending to develop integrated options by combining these systems (DF, AD, BES) into a cascade scheme. In this review, it is intended to give an insight to the research activities realized in these fields and show possible directions towards the better exploitation of leachate feedstock under anaerobic conditions.

Original languageEnglish
Pages (from-to)17278-17296
Number of pages19
JournalInternational Journal of Hydrogen Energy
Volume44
Issue number32
DOIs
Publication statusPublished - 2019 Jun 28

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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