Recently added articles from Bioremediation Journal:
Importance of the Sedimentary Matrix for Anaerobic Oil Degradation by Marine Bacterial Assemblages
Oct 01, 2007; ... ABSTRACT The microbial conversion of petroleum hydrocarbons is increasingly employed in bioremediation efforts. In marine sediments, oxygen levels are characteristically depleted, so anaerobic degradation coupled to sulfate reduction dominates. Prior studies have noted that anaerobic ...
Rice (Oryza sativa) as a Remediation Tool for Nutrient Runoff
Oct 01, 2007; ... ABSTRACT Hypereutrophication of U.S. surface waters is one of the leading causes of impairment for water quality. With nutrient criteria development and total maximum daily load (TMDL) issues looming for regulators, agricultural research is focusing on practices aimed at decreasing ...
Genotoxicity Assessment of Wood-Preserving Waste-Contaminated Soil Undergoing Bioremediation
Oct 01, 2007; ... ABSTRACT Bioremediation represents one of the most cost-effective technologies for treatment of petroleum hydrocarbons in contaminated surface soils. A major concern for regulatory agencies when evaluating bioremediation is how to determine acceptable levels for residual organics in ...
Biosorption of Lead from Industrial Wastewater Using Chrysophyllum albidum Seed Shell
Oct 01, 2007; ... ABSTRACT The shell of the seed of Chrysophyllum albidum carbon was used to adsorb lead (Pb) from aqueous solution, the sorption process with respect to its equilibria and kinetics as well as the effects of pH, contact time, adsorbent mass, adsorbate concentration, and particle size on ...
Degradation of Tribromophenol by Wood-Decaying Fungi and the 1,2-Dihydroxybenzene-Assisted Fenton Reaction
Oct 01, 2007; ... ABSTRACT The degradation of 2,4,6-tribromophenol (TBP) by biological and chemical treatments was studied. Biological treatment involved the use of Laetoporeus sulfureus, Gloephyllum trabeum, and Ganoderma australe in liquid culture. Despite the inhibitory effects of TBP on the fungal ...
Biodegradation of Phenol by Actinobacillus Sp.: Mathematical Interpretation and Effect of Some Growth Conditions
Jul 01, 2007; ... ABSTRACT Models of the cultivation process of Actinobacillus sp. cells in two media, rich (NB) and minimal (M9) that includes phenol as a sole carbon source, have not been described in the available literature. For these reasons, several single-substrate inhibition models (Monod, Andrew, ...
Options for In Situ Remediation of Soil Contaminated with a Mixture of Perchlorinated Compounds
Jul 01, 2007; ... ABSTRACT Environments contaminated with mixtures of chlorinated hydrocarbons represent a formidable challenge for bioremediation because biodegradation of all components of the mixture must be demonstrated. In this study a soil site contaminated with hexachloro-1,3-butadiene (HCBD), ...
Potential of Bioaugmentation and Biostimulation for Enhancing Intrinsic Biodegradation in Oil Hydrocarbon-Contaminated Soil
Jul 01, 2007; ... ABSTRACT Studies were conducted using a 10-chamber Micro-Oxymax (Columbus, OH, USA) respirometer to determine the effect of bioaugmentation and biostimulation (by diverse ways of O2 supply) on enhancing biodegradation of oil hydrocarbons to reduce risk at a former military airport in ...
Field Evidence for Intrinsic Aerobic Chlorinated Ethene Cometabolism by Methanotrophs Expressing Soluble Methane Monooxygenase
Jul 01, 2007; ... ABSTRACT Idaho National Laboratory's Test Area North is the site of a trichloroethene (TCE) plume resulting from waste injections. Previous investigations revealed that TCE was being attenuated relative to two codisposed internal tracers, tritium and tetrachloroethene, with a half-life ...
Biosorption of Mercury from Industrial Effluent by Fungal Consortia
Jul 01, 2007; ... ABSTRACT Mercury is present in different types of industrial effluents that cause environmental pollution. Conventional methods such as precipitation, oxidation/reduction, ion exchange, filtration, membranes, and evaporation are extremely expensive or inefficient for the removal of ...
The Impact of H^sub 2^ Addition on Dechlorinating Microbial Communities
Apr 01, 2007; ... ABSTRACT Laboratory-scale column experiments were performed to investigate the effects of membrane-supplied H^sub 2^ on tetrachloroethene (PCE) dechlorination and microbial community composition. Columns were filled with aquifer material from one of two TCE-contaminated sites and fed a ...
Removal of Pesticide Oxadixyl from an Aqueous Solution
Apr 01, 2007; ... ABSTRACT The mycelium of Phomopsis helianthi (Ascomycete) was hydrolyzed with boiling NaOH to give an insoluble fraction composed of chitosan and glucans. The biomass obtained was tested as an agent for the removal of pesticides from an aqueous solution. Oxadixyl, which has a solubility ...
Anaerobic Biodegradation and Hydrogeochemical Controls on Natural Attenuation of Trichloroethene in an Inland Forested Wetland
Apr 01, 2007; ... ABSTRACT A field and laboratory investigation of natural attenuation, focusing on anaerobic biodegradation, was conducted in a forested wetland where a plume of trichloroethene discharges from a sand aquifer through organic-rich wetland and stream-bottom sediments. The rapid response of ...
Biodegradation of Aliphatic and Aromatic Fractions of Heavy Crude Oil-Contaminated Soil: A Pilot Study
Apr 01, 2007; ... ABSTRACT Crude oil is one of the major contaminants of soil and water. Biodegradation is a good option for reducing oil contamination in soil. Soil fertilizers can help the microorganisms biodegrade oil with higher efficiency. In this study, the effect of chemical fertilizers and animal ...
Adsorption of Methylene Blue Dye on Pure and Carbonized Water Weeds
Apr 01, 2007; ... ABSTRACT The influence of process variables in batch adsorption has been used to assess the removal of methylene blue dye from aqueous solution using pure and carbonized biomasses of water hyacinth and water spinach. Dried leaves of the water weeds were carbonized at temperature up to ...
Use of Chicken Manure Extract for Biostimulation and Enhancement of Perchlorate Rhizodegradation in Soil and Water Media
Apr 01, 2007; ... ABSTRACT The influence of biostimulation using dissolved organic carbon (DOC) on rhizodegradation of perchlorate and plant uptake was studied under greenhouse conditions using soil and hydroponic bioreactors. One set of bioreactors planted with willow (Salix babylonica) plants was spiked ...
Characterization of a Polycyclic Aromatic Hydrocarbon-Degrading Microbial Consortium from a Petrochemical Sludge Landfarming Site
Jan 01, 2007; ... ABSTRACT Anthracene, phenanthrene, and pyrene are polycyclic aromatic hydrocarbon (PAHs) that display both mutagenic and carcinogenic properties. They are recalcitrant to microbial degradation in soil and water due to their complex molecular structure and low solubility in water. This ...
Rate of Biodegradation of Phenol by Klebsiella oxytoca in Minimal Medium and Nutrient Broth Conditions
Jan 01, 2007; ... ABSTRACT The rate of biodegradation of phenol by Klebsiella oxytoca strain was studied in the nutrient broth and M9 minimal medium. It was found that K. oxytoca degrade phenol at elevated phenol concentration where 75% of initial phenol concentration of 100 ppm will degrade within 72 h ....
Feasible Bioremediation through Arbuscular Mycorrhizal Fungi Imparting Heavy Metal Tolerance: A Retrospective
Jan 01, 2007; ... ABSTRACT Bioremediation is an integrated management of a polluted ecosystem where different organisms are employed to catalyze the natural processes that decontaminate the environment. The potential role of bioremediation, particularly higher terrestrial plants (phytoremediation) ...
Sulfate Requirement for the Growth of U(VI)-Reducing Bacteria in an Ethanol-Fed Enrichment
Jan 01, 2007; ... ABSTRACT A field experiment at the Oak Ridge Field Research Center has demonstrated the in situ biostimulation of U(VI) reduction with ethanol amendment, but little is known about the stimulated metabolic pathways or composition of the bacterial community mediating the reduction. This ...