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Endocrine disruptive estrogens role in electron transfer: bio-electrochemical remediation with microbial mediated electrogenesis.
- Source :
-
Bioresource technology [Bioresour Technol] 2012 Jan; Vol. 104, pp. 547-56. Date of Electronic Publication: 2011 Oct 20. - Publication Year :
- 2012
-
Abstract
- Bioremediation of selected endocrine disrupting compounds (EDCs)/estrogens viz. estriol (E3) and ethynylestradiol (EE2) was evaluated in bio-electrochemical treatment (BET) system with simultaneous power generation. Estrogens supplementation along with wastewater documented enhanced electrogenic activity indicating their function in electron transfer between biocatalyst and anode as electron shuttler. EE2 addition showed more positive impact on the electrogenic activity compared to E3 supplementation. Higher estrogen concentration showed inhibitory effect on the BET performance. Poising potential during start up phase showed a marginal influence on the power output. The electrons generated during substrate degradation might have been utilized for the EDCs break down. Fuel cell behavior and anodic oxidation potential supported the observed electrogenic activity with the function of estrogens removal. Voltammetric profiles, dehydrogenase and phosphatase enzyme activities were also found to be in agreement with the power generation, electron discharge and estrogens removal.<br /> (Copyright © 2011 Elsevier Ltd. All rights reserved.)
- Subjects :
- Biodegradation, Environmental
Electromagnetic Fields
Endocrine Disruptors chemistry
Endocrine Disruptors radiation effects
Water chemistry
Bioelectric Energy Sources microbiology
Electrochemistry methods
Estrogens chemistry
Estrogens radiation effects
Water Pollutants, Chemical chemistry
Water Pollutants, Chemical radiation effects
Water Purification methods
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2976
- Volume :
- 104
- Database :
- MEDLINE
- Journal :
- Bioresource technology
- Publication Type :
- Academic Journal
- Accession number :
- 22137274
- Full Text :
- https://doi.org/10.1016/j.biortech.2011.10.037