biodegradation


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biodegradation

 [bi″o-deg″rah-da´shun]
the series of processes by which living systems render chemicals less noxious to the environment.

bi·o·trans·for·ma·tion

(bī'ō-trans'fōr-mā'shŭn),
The conversion of molecules from one form to another within an organism, often associated with change (increase, decrease, or little change) in pharmacologic activity; refers especially to drugs and other xenobiotics.
Synonym(s): biodegradation

biodegradation

/bio·deg·ra·da·tion/ (-deg″rah-da´shun) the series of processes by which living systems render chemicals less noxious to the environment.

biodegradation

The breakdown of any material (e.g., an organic chemical), to a simpler nontoxic form, usually understood to be by bacterial action.

bi·o·trans·for·ma·tion

(bī'ō-trans'fŏr-mā'shŭn)
The conversion of molecules from one form to another within an organism, often associated with change in pharmacologic activity; refers especially to drugs and other xenobiotics.
Synonym(s): biodegradation.

biodegradation

the breaking down of inorganic and organic substances by biological action, a process usually involving bacteria and fungi, which are known as SAPROBIONTS when the substrate is biological.

biodegradation

the series of processes by which living systems render chemicals less noxious to the environment.
References in periodicals archive ?
Ainsi, le but de ce travail est l'etude cinetique de la biodegradation du phenol par des granules aerobies, particulierement ce qui concerne l'inhibition a des concentrations elevees de cette molecule.
0, indicating that the biodegradation of heavy oil took place under aerobic condition (Table 1).
The time of the experiments was not long enough for complete biodegradation of petroleum hydrocarbons and the reduction of the hydrocarbon concentrations was about 50-70%.
William Hogan, president of Willow Ridge, says the 12-week requirement for full biodegradation laid down in current ASTM composting standards is relevant only when the goal is disposal in an engineered composting facility--very few of which exist in the U.
If the question is the management of used materials, however, Alexander rails against public ignorance: People don't understand the problems caused by recycling, they think biodegradation is some form of natural magic, and they distrust incinerators.
At time of 4-12 hours, the MCB began to adapt so the growth of MCB and the biodegradation process began to take place, and it was shown by the increased thickness of the slime on the surface of the biofilter.
96 standard, ASTM D6691, Test Method for Determining Aerobic Biodegradation of Plastic Materials in the Marine Environment by a Defined Microbial Consortium or Natural Sea Water Inoculum.
One of the main reasons this technology is not used more frequently is the length of time required for the biodegradation process to occur in climate with low temperatures, which cause a slowdown in the biodegradation process (Borden et al.
Kinetics model for growth of Pseudomonas putida F1 during benzene, toluene and phenol biodegradation // Process Biochem.
Based on previous tests, biodegradation will take on average several months in a backyard composter.
That, Kujawinski says, suggests no biodegradation of DOSS--and shows why remnants of dispersant applications could be detected up to 300 kilometers from the wellhead and two months after the last application.
According to the team, the concentrations of DOSS indicate that little or no biodegradation of the dispersant substance had occurred.