TY - JOUR
T1 - Life cycle, techno-economic and dynamic simulation assessment of bioelectrochemical systems
T2 - A case of formic acid synthesis
AU - Shemfe, Mobolaji
AU - Gadkari, Siddharth
AU - Yu, Eileen
AU - Rasul, Shahid
AU - Scott, Keith
AU - Head, Ian M.
AU - Gu, Sai
AU - Sadhukhan, Jhuma
PY - 2018/5/1
Y1 - 2018/5/1
N2 - 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.
AB - 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.
KW - Carbon dioxide capture and reuse
KW - Circular economy
KW - Electrochemical biorefinery
KW - Resource recovery and productivity from waste
KW - Technical systems for policy
U2 - 10.1016/j.biortech.2018.01.071
DO - 10.1016/j.biortech.2018.01.071
M3 - Article
C2 - 29414171
AN - SCOPUS:85041486438
VL - 255
SP - 39
EP - 49
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -
