Results 181 to 190 of about 264,692 (228)
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Aerobic biodegradation of virginiamycin in soil
Environmental Toxicology and Chemistry, 1997Abstract Aerobic biodegradation of virginiamycin was examined in six different soil types over a 64-d incubation period. The following test conditions were examined in parallel for each soil type: (1) [14C]virginiamycin at 0.5 mg carbon/50 g soil amended with 9.5 mg carbon as unlabeled glucose/50 g soil; and (2) [14C]glucose at 10 mg ...
Chandralal A. Weerasinghe, Dwight Towner
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Aerobic biodegradation of thiocyanate
Water Research, 1997Abstract The biotransformation of thiocyanate (SCN − ) and cyanate (OCN − ) in a predominantly heterotrophic, activated sludge-derived culture was investigated. Acclimation and enrichment of aerobic, thiocyanate-degrading microorganisms led to complete thiocyanate oxidation to ammonia, bicarbonate, and sulfate.
Chien-Ho Hung, Spyros G. Pavlostathis
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Bulletin of Environmental Contamination and Toxicology, 2009
In this paper a study was made of the biodegradation of a non-ionic surfactant, a nonylphenol polyethoxylate, in biodegradability tests by monitoring the residual surfactant matter. The influence of the concentration on the extent of primary biodegradation, the toxicity of biodegradation metabolites, and the kinetics of degradation were also determined.
Encarnación, Jurado +3 more
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In this paper a study was made of the biodegradation of a non-ionic surfactant, a nonylphenol polyethoxylate, in biodegradability tests by monitoring the residual surfactant matter. The influence of the concentration on the extent of primary biodegradation, the toxicity of biodegradation metabolites, and the kinetics of degradation were also determined.
Encarnación, Jurado +3 more
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The Primary Aerobic Biodegradation of Gasoline Hydrocarbons
Environmental Science & Technology, 2007We describe the primary aerobic biodegradation of an unleaded, unoxygenated, regular gasoline by inocula from unacclimated fresh and sea water, and from a domestic sewage treatment plant. Biodegradation was rapid and complete in all inocula, with an overall median "half-life", at approximately 70 ppm gasoline and low levels of inorganic nutrients, of 5
Roger C, Prince +2 more
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Aerobic biodegradation of cumene: An ecocore study
Environmental Toxicology and Chemistry, 1993Abstract A microcosm study was conducted to determine the mineralization and disappearance of cumene (isopropylbenzene) in an aerobic freshwater sediment/water test system. Ecocores (300 cm3) constructed of glass and Teflon® were filled with intact sediment cores and river water.
Richard T. Williams +2 more
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The primary aerobic biodegradation of biodiesel B20
Chemosphere, 2008We describe the primary aerobic biodegradation of a B20 fuel (20% soybean fatty acid methyl esters, 80% petroleum diesel) by unacclimated inocula from a rainwater detention pond. Biodegradation was rapid and essentially complete, with an overall median 'half-life', at approximately 100 ppm B20, of 6.8 days (n=34).
Roger C, Prince +2 more
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Concomitant aerobic biodegradation of benzene and thiophene
Environmental Toxicology and Chemistry, 1998Abstract The concomitant aerobic biodegradation of benzene and thiophene was investigated in microcosm experiments using a groundwater enrichment culture. Benzene was biodegraded within 1 d, whereas thiophene could not be biodegraded as the sole source of carbon and energy.
Søren Dyreborg, Erik Arvin, Kim Broholm
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Biodegradability of semi-aerobic leachate
AIP Conference Proceedings, 2017The purpose of this research is to analyse the biodegradability of leachate from Pulau Burung sanitary landfill (PBSL). PBSL is a semi-aerobic landfill which applies Fukuoka Method to reduce the amount of CH4 and enhance the stability of landfill compared to anaerobic types. This study compares two types of leachate, namely young and stabilized. In the
Nor Hana Adam +2 more
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Aerobic Biodegradation of Acetylated Starch
Starch - Stärke, 1999Some acetylated starch samples with degrees of substitution varying from 0.03 to 1.6 are submitted to aerobic degradation by Bacillus amyloliquefaciens. The degradation is expressed by the concentration of reducing sugars evolved from the substrate, by the amylolytic activity and by the assessment of the CO 2 release resulting from the mineralization ...
Habiba Derradji‐Serghat +3 more
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Aerobic biodegradation of cellulose acetate
Journal of Applied Polymer Science, 1993AbstractTwo separate assay systems were used to evaluate the biodegradation potential of cellulose acetate: anin vitroenrichment cultivation technique (closed batch system), and a system in which cellulose diacetate (CDA) films were suspended in a wastewater treatment system (open continuous feed system).
Charles M. Buchanan +2 more
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