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Life cycle, techno-economic and dynamic simulation assessment of bioelectrochemical systems: A case of formic acid synthesis

Mobolaji Shemfe, Siddharth Gadkari, Eileen Yu, Shahid Rasul, Keith Scott, Ian M. Head, Sai Gu, Jhuma Sadhukhan*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    115 Citations (Scopus)
    71 Downloads (Pure)

    Abstract

    A novel framework, integrating dynamic simulation (DS), life cycle assessment (LCA) and techno-economic assessment (TEA) of a bioelectrochemical system (BES), has been developed to study for the first time wastewater treatment by removal of chemical oxygen demand (COD) by oxidation in anode and thereby harvesting electron and proton for carbon dioxide reduction reaction or reuse to produce products in cathode. Increases in initial COD and applied potential increase COD removal and production (in this case formic acid) rates. DS correlations are used in LCA and TEA for holistic performance analyses. The cost of production of HCOOH is €0.015–0.005 g−1 for its production rate of 0.094–0.26 kg yr−1 and a COD removal rate of 0.038–0.106 kg yr−1. The life cycle (LC) benefits by avoiding fossil-based formic acid production (93%) and electricity for wastewater treatment (12%) outweigh LC costs of operation and assemblage of BES (−5%), giving a net 61MJkg−1 HCOOH saving.

    Original languageEnglish
    Pages (from-to)39-49
    Number of pages11
    JournalBioresource Technology
    Volume255
    Early online date4 Feb 2018
    DOIs
    Publication statusPublished - 1 May 2018

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 6 - Clean Water and Sanitation
      SDG 6 Clean Water and Sanitation
    2. SDG 9 - Industry, Innovation, and Infrastructure
      SDG 9 Industry, Innovation, and Infrastructure
    3. SDG 12 - Responsible Consumption and Production
      SDG 12 Responsible Consumption and Production
    4. SDG 13 - Climate Action
      SDG 13 Climate Action

    Keywords

    • Carbon dioxide capture and reuse
    • Circular economy
    • Electrochemical biorefinery
    • Resource recovery and productivity from waste
    • Technical systems for policy

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