TY - JOUR
T1 - Removal of sodium dodecyl sulphate from wastewater and its effect on anodic biofilm and performance of microbial fuel cell
AU - Chakraborty, Indrajit
AU - Bhowmick, Gourav Dhar
AU - Nath, Dibyojyoty
AU - Khuman, C. N.
AU - Dubey, B. K.
AU - Ghangrekar, M. M.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/1/1
Y1 - 2021/1/1
N2 - This investigation demonstrates that sodium dodecyl sulphate (SDS) can be biodegraded efficaciously in MFC within a retention time of 12 h. The application of MFC for degradation of SDS and its corresponding effect on the power generation and organic matter removal capacity of MFC was first time quantified in this investigation. This investigation also illustrated the SDS induced microbial diversification of the anodic biofilm and correlates the same with the established SDS degradation pathway. Presence of microbial strains, such as Acinetobacter, Pseudomonas, Citrobacter, Treponema etc., capable of degrading complex and refractory organics was identified using the next-generation sequencing (NGS) analysis of the anodic biofilm. Compared to the identical control MFC, the power performance of MFC-SDS reduced by 66%. This was attributed to the inhibitory effect of SDS on the cell membrane as well as the biofilm growth. Furthermore, the chemical oxygen demand (COD) and SDS removal efficiencies exhibited that the microbes preferred L-cysteine over SDS as a substrate due to higher bioavailability of the former. In spite of the preferential choice of L-cysteine over SDS and the inhibitory effect of SDS over the formation of anodic biofilm, a constant SDS removal efficiency of 70% and above was achieved.
AB - This investigation demonstrates that sodium dodecyl sulphate (SDS) can be biodegraded efficaciously in MFC within a retention time of 12 h. The application of MFC for degradation of SDS and its corresponding effect on the power generation and organic matter removal capacity of MFC was first time quantified in this investigation. This investigation also illustrated the SDS induced microbial diversification of the anodic biofilm and correlates the same with the established SDS degradation pathway. Presence of microbial strains, such as Acinetobacter, Pseudomonas, Citrobacter, Treponema etc., capable of degrading complex and refractory organics was identified using the next-generation sequencing (NGS) analysis of the anodic biofilm. Compared to the identical control MFC, the power performance of MFC-SDS reduced by 66%. This was attributed to the inhibitory effect of SDS on the cell membrane as well as the biofilm growth. Furthermore, the chemical oxygen demand (COD) and SDS removal efficiencies exhibited that the microbes preferred L-cysteine over SDS as a substrate due to higher bioavailability of the former. In spite of the preferential choice of L-cysteine over SDS and the inhibitory effect of SDS over the formation of anodic biofilm, a constant SDS removal efficiency of 70% and above was achieved.
KW - Bioelectrochemical systems
KW - Microbial fuel cell
KW - Sodium dodecyl sulphate removal
KW - Wastewater treatment
KW - Xenobiotic compounds
UR - http://www.scopus.com/inward/record.url?scp=85092761836&partnerID=8YFLogxK
U2 - 10.1016/j.ibiod.2020.105108
DO - 10.1016/j.ibiod.2020.105108
M3 - Article
AN - SCOPUS:85092761836
SN - 0964-8305
VL - 156
JO - International Biodeterioration and Biodegradation
JF - International Biodeterioration and Biodegradation
M1 - 105108
ER -