Adsorption and Concentration of Organic Contaminants by Carbon Nanotubes from Environmental Samples

2011 ◽  
pp. 79-136
Author(s):  
Hongyun Niu ◽  
Yagi Cai
Keyword(s):  
Carbon Nanotubes ◽  
Organic Contaminants ◽  
Environmental Samples

scholarly journals Biodegradation of polycyclic aromatic hydrocarbons, phenol and sodium sulfate by Nocardia species isolated and characterized from Iranian ecosystems

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Davood Azadi ◽  
Hasan Shojaei
Keyword(s):  
Aromatic Hydrocarbons ◽  
Organic Contaminants ◽  
Environmental Samples ◽  
Pcr Amplification ◽  
Hazardous Materials ◽  
Sequencing Analysis ◽  
Nocardia Species ◽  
Anthropogenic Pollutants ◽  
Microbiological Methods ◽  
Polycyclic Aromatic

AbstractAnthropogenic pollutants are known to have adverse effect on ecosystem, biodiversity and human health. Bioremediation is an option that has been widely used to remediate organic contaminants and reduce the risk of these hazardous materials. Microorganisms are readily available to screen and can be rapidly characterized to be applied in many extreme environmental conditions. Actinomycetes have a great potential for the production of bioactive secondary metabolites which have biodegradation activity. This study aimed to screen and characterize Nocardia species with biodegradation potential from diverse Iranian ecosystems. The isolates were screened from 90 collected environmental samples, identified and characterized using conventional and molecular microbiological methods including the PCR amplification and sequencing analysis of 16S rRNA and rpoB genetic markers. Growth rate in presence of pollutants, chromatography, Gibbs and turbidometric methods were used to determine bioremediation ability. A total of 19 Nocardia isolates were recovered from the cultured samples (21.1%) that belonged to 10 various species. The most prevalent Nocardia species was N. farcinica; 4 isolates (21%), followed by N. cyriacigeorgica and N. cashijiensis like; 3 isolates each (15.7%) and N. asteroides and N. kroppenstedtii; 2 isolates each (10.5%). Our results showed that various Nocardia species have great potential for bioremediation purposes, although they have not received much attention of the scholars for such significant usage.

Characterization of organic contaminants in environmental samples associated with Mount St. Helens 1980 volcanic eruption

1982 ◽  
Vol 16 (7) ◽  
pp. 387-396 ◽  
Author(s):  
Wilfred E. Pereira ◽  
Colleen E. Rostad ◽  
Howard E. Taylor ◽  
John M. Klein
Keyword(s):  
Organic Contaminants ◽  
Volcanic Eruption ◽  
Environmental Samples ◽  
Mount St Helens

Rapid, Automated Methods To Analyze For Organic Contaminants In Environmental Samples

2005 ◽  
Author(s):  
M.M. Krahn ◽  
D.W. Brown ◽  
C.A. Wigren ◽  
D.G. Burrows ◽  
W.D. MacLeod ◽  
...  
Keyword(s):  
Organic Contaminants ◽  
Environmental Samples ◽  
Automated Methods
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