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Original Research ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Energy Res. | doi: 10.3389/fenrg.2019.00089

Influence of mild-ozone assisted disperser pretreatment on the enhanced biogas generation and biodegradability of green marine macroalgae

  • 1Vel Tech Dr. RR & Dr. SR Technical University, India
  • 2Anna University, India
  • 3Anna University, Chennai, India
  • 4Department of Civil, Environmental and Architectural Engineering, College of Engineering, Korea University, South Korea

This study illustrated the participation of marine macroalgaebiomass (MAB) (Chaetomorpha antennina) in the liquefaction process for bioenergy production. The proposed work intended to investigate the role of disperser pretreatment (DP) and ozone disperser pretreatment (ODP) of MAB for energy efficient biogas generation. The disperser G-force of 1613 g, pretreatment time 30 min and ozone dosage 0.00049 g O3/g TS waspreferred as an optimum conditions for profitable and energy efficient liquefaction. On comparing DP and ODP, the MAB liquefaction and methane production potential was much higher (20.5 %, 0.20 g COD/g COD) in ODP when compared to DP (11.9 %, 0.11 g COD/g COD). Therefore, the ODP essentially improve the anaerobic biodegradability of MAB. The economic assessment showed that the ODP was found to have a higher net profit of 71 USD/ton of MAB compared to DP (4 USD/ton of MAB).

Keywords: Liquefaction, Biopolymers, Energy ratio, pretreatment, Hydrolysis.

Received: 24 Jun 2019; Accepted: 14 Aug 2019.

Copyright: © 2019 Tamilarasan, Banu, Kumar and Park. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Rajesh Banu, Anna University, Chennai, India, rajeshces@gmail.com