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    Technology-Based Solutions for the Environment


    Enhanced Aerobic Biodegradation

    At a Glance

    Regenesis_Icon_Mechanisms Regenesis_Icon_Trackable-Contaminents ‚‚Regenesis_Icon_Concentration


    Treatable Contaminants:‚‚


    Biological Degradation

    Microbes utilize oxygen to

    break down contaminants

    Treats petroleum hydrocarbons

    and other compounds including


    Treats moderate to low



    Regenesis_Icon_Conditions Regenesis_Icon_Applied-Frec



    Applications Frequency:

    Longer treatment time

    (6-12 months)

    Saturated zone

    Every 6-12 months, as needed.

    Single application common


    Enhanced Aerobic Biodegradation Overview

    Enhanced aerobic biodegradation is the practice of adding oxygen to saturated soil and groundwater to increase the number and vitality of indigenous microorganisms able to perform biodegradation. Oxygen is considered by many to be the primary growth-limiting factor for hydrocarbon degrading bacteria. Natural sources of dissolved oxygen are quickly depleted when petroleum hydrocarbons are released into the subsurface, thus the natural attenuation of petroleum hydrocarbons in untreated, oxygen-depleted aquifers is slow.

    By providing oxygen into the subsurface, remediation practitioners can accelerate naturally occurring aerobic biodegradation rates 10-100 times.

    Enhanced Aerobic Biodegradation of Petroleum Hydrocarbons

    Enhanced aerobic biodegradation is typically used to treat low to moderate levels of contamination. The most commonly treated compounds treated with enhanced aerobic bioremediation are petroleum hydrocarbon constituents (BTEX, PAHs, TPH) and fuel oxygenates and related compounds (MTBE, TBA).

    When it comes to high petroleum hydrocarbon levels, many remediation practitioners use enhanced aerobic biodegradation in conjunction with more potent treatments such as in situ chemical oxidation (ISCO). Once the hydrocarbon contamination levels have been significantly reduced through ISCO, a transition can be made to enhanced aerobic biodegradation to treat the lower-level, more widely dispersed contaminants.

    REGENESIS welcomes the opportunity to provide you and your team with the tools you need to successfully plan and execute your next enhanced aerobic bioremediation project.

    If you currently have a project and need a remediation solution now, visit our Quick Start Solution page.

    Have questions or want to explore some ideas? Contact Us to get in touch with a local representative.

    Learn More