Natural biodegradation definition

Natural biodegradation means in-situin situ biological processes such as aerobic respiration, anaerobic respiration, and cometabolism, that occur without human intervention and that break down hazardous substances into other compounds or elements. The process is typically a multiple step process and may or may not result in organic compounds being completely broken down or mineralized to carbon dioxide and water.
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Natural biodegradation means biodegradation that occurs without human intervention. See definition of “biodegradation.”
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Examples of Natural biodegradation in a sentence

  • Natural biodegradation processes within waste bodies give rise to landfill leachate (produced as a result of rainfall passing through the waste body) and landfill gas.

  • Natural biodegradation under Alternative 2 is an irreversible treatment process that would reduce the mass and concentration of contaminants.

  • Natural biodegradation of contaminants tends to be rate limited due to limitations on the biological processes.

  • In this nutrient-poor environment, Natural biodegradation processes were demonstrated to be active in the attenuation of this chlorinated solvent plume.

  • Natural biodegradation processes associated with the No Action and Natural Attenuation alternatives (Alternatives 1 and 4) will reduce the toxicity of ground water contaminants via natural biodegradation processes occurring within the Plume.

  • Natural biodegradation (mineralization or transformation) of a wide range of hydrocarbons, including polycyclic aromatic hydrocarbons (PAHs) and aliphatic and aromatic compounds, occurs in various extreme habitats.

  • Natural biodegradation processes would be enhanced through air sparging in order to reduce COC concentrations in groundwater to levels protective of sediments prior to reaching the sediments.

  • Id.In his petition for review, the appellant appears to challenge the validity of the settlement agreement based on coercion.

  • Natural biodegradation of the hydrocarbons creates reducing conditions, which increases the solubility of metals, such as manganese and iron, from the well casing or aquifer sediment.

  • P Natural biodegradation may result in the complete destruction of contaminants in- situ.P May be used in conjunction with, or as follow-up to, active remedial measures.P Much less effective where TPH concentrations in soil are high (> 20,000 to 25,000 mg/kg).

Related to Natural biodegradation

  • Acute toxicity means concurrent and delayed adverse effects that result from an acute exposure and occur within any short observation period, which begins when the exposure begins, may extend beyond the exposure period, and usually does not constitute a substantial portion of the life span of the organism.

  • Infiltration means water other than wastewater that enters a sewer system (including sewer system and foundation drains) from the ground through such means as defective pipes, pipe joints, connections, or manholes. Infiltration does not include, and is distinguished from, inflow.

  • Chemical agent shall mean any compound which, when suitably disseminated, produces incapacitating, damaging or lethal effects on people, animals, plants or material property.

  • Natural attenuation means the reduction in the con- centration and mass of a substance, and the products into which the substance breaks down, due to naturally occurring physical, chemical and biological processes.