Results 61 to 70 of about 2,592 (195)

Diversity of dehalorespiring bacteria and selective enrichment of aryl halides-dechlorinating consortium from sedimentary environment near an oil refinery

Journal of Taibah University for Science, 2018
This study demonstrated the potential for reductive dechlorination of aryl halides in a sedimentary environment by naturally occurring bacteria. A laboratory sediment microcosm and highly enriched, stable dechlorinating cultures were established using ...
Wael S. El-Sayed, Saleh R. Al-Senani, Yasser Elbahloul   +2 more
doaj   +1 more source

Organohalide Respiring Bacteria and Reductive Dehalogenases: Key Tools in Organohalide Bioremediation

Frontiers in Microbiology, 2016
Organohalides are recalcitrant pollutants that have been responsible for substantial contamination of soils and groundwater. Organohalide-respiring bacteria (ORB) provide a potential solution to remediate contaminated sites, through their ability to use ...
Bat-Erdene eJugder, Haluk eErtan, Haluk eErtan, Susanne eBohl, Matthew eLee, Susanne eBohl, Christopher Peter Marquis, Michael eManefield   +7 more
doaj   +1 more source

A Polyhydroxybutyrate (PHB)-Biochar Reactor for the Adsorption and Biodegradation of Trichloroethylene: Design and Startup Phase

Bioengineering, 2022
In this work, polyhydroxy butyrate (PHB) and biochar from pine wood (PWB) are used in a mini-pilot scale biological reactor (11.3 L of geometric volume) for trichloroethylene (TCE) removal (80 mgTCE/day and 6 L/day of flow rate).
Marta M. Rossi, Sara Alfano, Neda Amanat, Fabiano Andreini, Laura Lorini, Andrea Martinelli, Marco Petrangeli Papini   +6 more
doaj   +1 more source

Biomarkers’ Responses to Reductive Dechlorination Rates and Oxygen Stress in Bioaugmentation Culture KB-1TM

Microorganisms, 2018
Using mRNA transcript levels for key functional enzymes as proxies for the organohalide respiration (OHR) rate, is a promising approach for monitoring bioremediation populations in situ at chlorinated solvent-contaminated field sites.
Gretchen L. W. Heavner, Cresten B. Mansfeldt, Garrett E. Debs, Sage T. Hellerstedt, Annette R. Rowe, Ruth E. Richardson   +5 more
doaj   +1 more source

Coupling of bioelectrochemical toluene oxidation and trichloroethene reductive dechlorination for single-stage treatment of groundwater containing multiple contaminants

Environmental Science and Ecotechnology, 2022
Bioremediation of groundwater contaminated by a mixture of aromatic hydrocarbons and chlorinated solvents is typically challenged because these contaminants are degraded via distinctive oxidative and reductive pathways, thus requiring different ...
Carolina Cruz Viggi, Matteo Tucci, Marco Resitano, Simona Crognale, Maria Letizia Di Franca, Simona Rossetti, Federico Aulenta   +6 more
doaj   +1 more source

Elastic Deformation of Cellulose/Lignin‐Based Anode for Rejuvenating Aged Mix‐Cultured Electroactive Biofilms

Advanced Science, Volume 12, Issue 23, June 20, 2025.
A new strategy for revitalizing aged biofilms using the elastic deformation of biomass‐based flexible carbon aerogel is proposed. The elastic deformation removes the nonelectrogenic bacteria and the dead electrogenic bacteria, as well as a lot of loosely bound extracellular polymer materials.
Xue Liu, Zheng Zhang, Qingwen Zheng, Chengcheng Suo, Bailing Dong, Huiying Song, Jiayi Wang, Jia Liu, Runfeng Yuan, Sailike Milanbieke, Sha Luo, Chenhui Yang, Zhijun Chen, Ruiwen Wang, Wei Li, Shouxin Liu   +15 more
wiley   +1 more source

Evidence for Nitrogen Fixation by “ Dehalococcoides ethenogenes ” Strain 195 [PDF]

Applied and Environmental Microbiology, 2009
ABSTRACT Genome annotation of the chlorinated ethene-respiring “ Dehalococcoides ethenogenes ” strain 195 indicated the presence of a complete nitrogenase operon. Here, results from long-term growth experiments, gene expression, and 15 N 2 -isotope ...
Lee, P.K.H., He, J., Zinder, S.H., Alvarez-Cohen, L.   +3 more
openaire   +2 more sources

Thermochemical Recycling and Degradation Strategies of Halogenated Polymers (F−, Cl−, Br−): A Holistic Review Coupled with Mechanistic Insights

The Chemical Record, Volume 25, Issue 6, June 2025.
This review aims to comprehensively address recent degradation techniques (physical, chemical and biological) of halogenated waste polymers with a prime focus on thermal degradation techniques. Exploiting various metal oxides during co‐pyrolysis is deemed a viable solution for recycling halogenated polymeric waste.
Mohamed Shafi Kuttiyathil, Labeeb Ali, Mohammednoor Altarawneh   +2 more
wiley   +1 more source

BEAN and HABAS: Polyphyletic insertions in the DNA‐directed RNA polymerase

Protein Science, Volume 33, Issue 11, November 2024.
Abstract The β and β′ subunits of the RNA polymerase (RNAP) are large proteins with complex multi‐domain architectures that include several insertional domains. Here, we analyze the domain organizations of RNAP‐β and RNAP‐β′ using sequence, experimentally determined structures and AlphaFold structure predictions.
Claudia Alvarez‐Carreño, Angela T. Huynh, Anton S. Petrov, Christine Orengo, Loren Dean Williams   +4 more
wiley   +1 more source

Perfluoroalkyl Acids Inhibit Reductive Dechlorination of Trichloroethene by Repressing Dehalococcoides [PDF]

Environmental Science & Technology, 2015
The subsurface recalcitrance of perfluoroalkyl acids (PFAAs) derived from aqueous film-forming foams could have adverse impacts on the microbiological processes used for the bioremediation of co-mingled chlorinated solvents such as trichloroethene (TCE).
Weathers, Tess S, Harding-Marjanovic, Katie, Higgins, Christopher P, Alvarez-Cohen, Lisa, Sharp, Jonathan O   +4 more
openaire   +4 more sources