The present study shows the feasibility of a newly isolated strain Acinetobacter sp. B9 for concurrent removal of phenol and Cr (VI) from wastewater. The experiments were conducted in a batch reactor under aerobic conditions. Initially, when mineral salt solution was used as the culture medium, the strain was found to utilize phenol as sole carbon and energy source while no Cr (VI) removal was observed. However, the addition of glucose as co-carbon source resulted in the removal of both toxicants. This co-removal efficiency of the strain was further improved with nutrient-rich media (NB). Optimum co-removal was determined at 188 mg L(-1) of phenol and 3.5 mg L(-1) of Cr (VI) concentrations at pH 7.0. Strain B9 followed the orthometabolic pathway for phenol degradation. Transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT-IR) studies showed sorption of chromium as one of the major mechanisms for Cr (VI) removal by B9 cells. Acinetobacter sp. B9 was later on checked for bioremediation of real tannery wastewater. After 96 h of batch treatment of tannery effluent containing an initial 47 mg L(-1) phenol and 16 mg L(-1) Cr (VI), complete removal of phenol and 87 % reduction of Cr (VI) were attained, showing high efficiency of the bacterial strain for potential application in industrial pollution control.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00253-014-5910-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Vasorelaxant effect of fennel seeds (Foeniculum vulgare Mill) extracts on rat mesenteric arteries: Assessment of phytochemical profiling and antioxidant potential.
Fitoterapia
December 2024
Laboratory of Bioresources, Biotechnology, Ethnopharmacology and Health. Faculty of Sciences, Mohammed First University, Oujda, BP-717, 60000 Oujda, Morocco. Electronic address:
Ethnopharmacological Relevance: Hypertension is a serious health problems and a leading cause of adult mortality worldwide. Foeniculum. vulgare Mill, a plant traditionally used for various ailments, including cardiovascular disorders such as hypertension.
View Article and Find Full Text PDFAn efficient co-culture of and for phenol degradation under high salt conditions.
Front Microbiol
December 2024
CAS Key Lab of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China.
Phenol is one of the major organic pollutants in high salt industrial wastewater. The biological treatment method is considered to be a cost-effective and eco-friendly method, in which the co-culture of microalgae and bacteria shows a number of advantages. In the previous study, a co-culture system featuring () and () was established and could degrade 400 mg L phenol at 3% NaCl concentration.
View Article and Find Full Text PDFRemoval of tetracycline by biochar synergistic with ferrate: Influencing mechanism on precursor biomass components.
Sci Total Environ
December 2024
College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China.
Biochar can serve as an activator for potassium ferrate, significantly enhancing the treatment efficiency to antibiotics. However, the mechanism by which biochar activated potassium ferrate remained unclear, necessitating further investigation. Cellulose biochar (CBC) and lignin biochar (LBC) derived by two model compounds which were the highest proportion of content in biomass were adopted to be study object, to investigate the removal efficiency of tetracycline (TC) by ferrate synergetic with CBC and LBC, respectively for the first time, and thoroughly analyzed the adsorption and degradation processes within the reaction system.
View Article and Find Full Text PDFNew insight of electrogenerated HO into oxychlorides inhibition and decontamination promotion: From radical to nonradical pathway during anodic oxidation of high Cl-laden wastewater process.
J Hazard Mater
December 2024
School of Life Sciences, Key Laboratory of Jiangxi Province for Functional Biology and Pollution Control in Red Soil Regions, Jinggangshan University, Ji'an 343009, PR China. Electronic address:
Anodic oxidation (AO) has been extensively hailed as a robust and promising technology for pollutant degradation, but the parasitic formation of oxychlorides (ClO) would induce a seriously over-evaluated electrochemical COD removal performance and dramatical biotoxicity increasement of the AO-treated Cl-laden effluents. Herein, we shed new light on the roles of HO high-efficiently electrogenerated in three-dimensional (3D) reactor in inhibiting ClO production and promoting pollutant degradation, which has been overlooked in previous literature. Total yield of ClO in phenol simulated wastewater containing 30 mM Cl was dropped from 25 mM and 24.
View Article and Find Full Text PDFMagnesium Oxide-Supported Single Atoms with Fine-Modulated Steric Location for Polymerization Transfer Removal of Water Pollutants.
Environ Sci Technol
December 2024
CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei 230026, China.
Organic pollutants removal via a polymerization transfer (PT) pathway based on the use of single-atom catalysts (SACs) promises efficient water purification with minimal energy/chemical inputs. However, the precise engineering of such catalytic systems toward PT decontamination is still challenging, and the conventional SACs are plagued by low structural stability of carbon material support. Here, we adopted magnesium oxide (MgO) as a structurally stable alternative for loading single copper (Cu) atoms to drive peroxymonosulfate-based Fenton-like reactions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!