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

46 Citations (Scopus)
13 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

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