نتایج جستجو برای Biodegradation

تعداد نتایج: 3822  

2001
T. Cort, A. Bielefeldt,

Several potential mechanisms of surfactant-induced inhibition of pentachlorophenol (PCP) biodegra-dation were tested using a pure bacterial culture of Sphingomonas chlorophenolicum sp. Strain RA2. Concentrations of the surfactant Tergitol NP-10 (TNP10) over 200 mg/L inhibit biodegradation of PCP at concentrations below 100 mg/L. At PCP concentrations above 200 mg/L, TNP10 reduced the substrate ...

2013
V. Gunasekar, D. Gowdhaman, V. Ponnusami,

Azo dyes are widely used in textile industries. Removal of the color from textile waste water is a striking issue. To curb this issue, biological treatment can be employed rather than physicochemical processes. In this work, Bacillus subtilis is used to degrade the reactive dye – RED M5B. It is found that decolorization was due the action of enzyme peroxidase produced by the organisms during it...

Journal: :Applied microbiology 1973
J D Nelson, W Blair, F E Brinckman, R R Colwell, W P Iverson,

Selected cultures of mercury-resistant bacteria degrade the fungicide-slimicide phenylmercuric acetate. By means of a closed system incorporating a flameless atomic absorption spectrophotometer and a vapor phase chromatograph, it was demonstrated that elemental mercury vapor and benzene were products of phenylmercuric acetate degradation.

2002
Piero Tiano,

Our cultural heritage is made with almost all type of materials produced by the nature and used by men to realize several types of artefacts from very simple mono-components to complex structures integrating inorganic and organic matters. These cultural heritage objects, even if made with the more “resistant” stones and metals, are influenced by the environmental parameters, which can modify th...

2009
Samkeun Lee, Sun-Young Lee, Kwang-Soo Shin,

White-rot fungus Irpex lacteus degraded TNT significantly in proportion to the culture time. After 48 h incubation, about 95% of TNT was degraded. Two reduced metabolites were identified as 4-amino-2,6-dinitrotoluene (4-ADNT) and 2-amino-4,6-dinitrotoluene (2-ADNT) which was further degraded.

Journal: :Biochemical and biophysical research communications 2000
B Bhushan, A Chauhan, S K Samanta, R K Jain,

Three bacterial species, i.e., Ralstonia sp. SJ98, Arthrobacter protophormiae RKJ100, and Burkholderia cepacia RKJ200, have been examined for their efficiency and kinetics behavior toward PNP degradation. All the three bacteria utilized PNP as the sole source of carbon, nitrogen, and energy. The rates of radiolabeled [U-(14)C]PNP degradation by all the bacteria were higher in the nitrogen-free ...

Journal: :Journal of hazardous materials 2011
Chen Tu, Ying Teng, Yongming Luo, Xiuhua Li, Xianghui Sun, Zhengao Li, Wuxing Liu, Peter Christie,

Resting cell assay and soil microcosms were set up to investigate the biodegradation capability and metabolic intermediate of polychlorinated biphenyls (PCBs) by a rhizobial strain Sinorhizobium meliloti. Biodegradation was observed immediately after 2,4,4'-TCB was supplied as a sole source of carbon and energy in liquid cultures. After 6 days, the percent biodegradation of 2,4,4'-TCB was 77.4%...

2013
Isabel Natalia Sierra-Garcia, Valéria Maia de Oliveira,

The understanding of the phylogenetic diversity, metabolic capabilities, ecological roles, and community dynamics taking place in oil reservoir microbial communities is far from complete. The interest in studying microbial diversity and metabolism in petroleum reservoirs lies mainly but not only on providing a better comprehension of biodegradation of crude oils, since it represents a worldwide...

2016
International Journal of Bacteriology,

[This retracts the article DOI: 10.1155/2014/863272.].

2004
A. Lobo, J. Muñoz, I. Tejero,

Several research groups are working on the development of dynamic simulation tools for the design, management and monitoring of municipal solid waste landfills. One of these tools is the MODUELO software, which the Environmental Engineering Group of the University of Cantabria has been developing since 1998. Based on meteorological data, waste generation and landfill layout data, the program es...

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