scholarly journals Characterization of Fate and Biological Degradation Processes Attenuating IMX-101 Munition Constituents in the Environment

2013 ◽  
Author(s):  
Thomas Richard
Keyword(s):  
Biological Degradation ◽  
Degradation Processes ◽  
Munition Constituents

scholarly journals Production and Characterization of Esterase in Lantinus tigrinus for Degradation of Polystyrene

2013 ◽  
Vol 62 (1) ◽  
pp. 101-108 ◽  
Author(s):  
LUBNA TAHIR ◽  
MUHAMMAD ISHTIAQ ALI ◽  
MUHAMMAD ZIA ◽  
NAIMA ATIQ ◽  
FARIHA HASAN ◽  
...  
Keyword(s):  
Acidic Medium ◽  
Specific Activity ◽  
Mineral Salt Medium ◽  
Tween 80 ◽  
Synthetic Polymers ◽  
Ftir Analysis ◽  
Polystyrene Film ◽  
Biological Degradation ◽  
Ph Range

Polystyrene is considered stable to biological degradation. Lantinus tigrinus isolated from wood sample produced esterase in growth medium under normal conditions. However, acidic medium, 37 degrees C temperature, presence of tween 80; and urea and yeast extract in mineral salt medium enhance the production of esterase and specific activity. Purified esterase was active at broad pH range and 45 degrees C. FTIR analysis confirmed that esterase produced by Lantinus tigrinus effectively degraded polystyrene film and broke macromolecules down to non-toxic molecules. This study concludes that the presence of Lantinus tigrinus at dumping sites can be exploited for waste management containing high molecular weight synthetic polymers.

Characterization of degradation processes in MOS VLSI structures

1992 ◽  
Author(s):  
Tomasz Brozek ◽  
Andrzej Jakubowski ◽  
Bogdan Majkusiak
Keyword(s):  
Degradation Processes

scholarly journals Characterization of model samples simulating degradation processes induced by iron and sulfur species on waterlogged wood

2020 ◽  
Vol 155 ◽  
pp. 104756
Author(s):  
Mathilde Monachon ◽  
Magdalena Albelda-Berenguer ◽  
Charlène Pelé ◽  
Emilie Cornet ◽  
Elodie Guilminot ◽  
...  
Keyword(s):  
Sulfur Species ◽  
Degradation Processes

Characterization of the relationship between microbial degradation processes at a hydrocarbon contaminated site using isotopic methods

2012 ◽  
Vol 133 ◽  
pp. 17-29 ◽  
Author(s):  
Stefan Feisthauer ◽  
Martin Seidel ◽  
Petra Bombach ◽  
Sebastian Traube ◽  
Kay Knöller ◽  
...  
Keyword(s):  
Microbial Degradation ◽  
Contaminated Site ◽  
Degradation Processes ◽  
Isotopic Methods ◽  
The Relationship

scholarly journals Characterization of bacterial diversity and assessing the cyanide biodegradation potential of bacterial isolates from gold processing plants

DYNA ◽  
2021 ◽  
Vol 88 (216) ◽  
pp. 136-144
Author(s):  
Viviana López-Ramírez ◽  
Marco Antonio Márquez Godoy ◽  
Claudia Ximena Moreno Herrera
Keyword(s):  
Industrial Processes ◽  
Rrna Gene ◽  
Biological Degradation ◽  
Molecular Tools ◽  
Gold Processing ◽  
Microbiological Methods ◽  
Processing Plants ◽  
Mining Wastewater ◽  
The 16S Rrna Gene

Cyanide is the basic component of many industrial processes, among which is gold processing, being very toxic or even lethal. Treatment, with the help of microorganisms, can be used effectively to reduce the load of harmful chemicals into the environment. The combination of microbiological methods and molecular tools allowed inferring the presence of a dominant population and the composition varied both in the places of origin and in the method used. The dominant phylogenetic affiliations of the bacteria were determined by sequencing the 16S rRNA gene. The isolates identified, as Bacillus and Enterococcus were capable to degrade 41.9 and 27.5 mg CN- L-1 respectively. This study provides information about the presence of a diverse bacterial community associated with residual effluents from cyanidation processes in Colombia and suggests that their presence could play a role in the biological degradation of cyanide compounds, offering an alternative for mining wastewater treatment.

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