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Enhanced Anaerobic Oxidative Bioremediation

Enhanced anaerobic oxidative bioremediation stimulates naturally occurring microorganisms to biologically degrade petroleum hydrocarbons by supplying alternative electron acceptors such as sulfate or nitrate under oxygen-limited conditions.

Tersus Products for Enhanced Anaerobic Oxidative Bioremediation

Click any product below to learn more about its role in this remediation technology.

What Is Enhanced Anaerobic Oxidative Bioremediation?

Enhanced anaerobic oxidative bioremediation stimulates naturally occurring microorganisms by supplying alternative electron acceptors to support contaminant biodegradation in oxygen-depleted aquifers. Unlike aerobic bioremediation, which relies on dissolved oxygen, this approach promotes the microbial oxidation of contaminants using alternative electron acceptors such as sulfate or nitrate. During these processes, microorganisms metabolize organic contaminants while reducing the supplied electron acceptors, ultimately transforming contaminants into carbon dioxide, water, and other naturally occurring byproducts.

In many groundwater systems, naturally available electron acceptors become depleted as biodegradation progresses, limiting continued microbial activity. Enhanced anaerobic oxidative bioremediation overcomes this limitation by replenishing suitable electron acceptors to sustain biodegradation. Sulfate is often the preferred electron acceptor because it supports long-term treatment, distributes effectively throughout the subsurface, and promotes the anaerobic biodegradation of petroleum hydrocarbons and other biodegradable organic contaminants. Depending on site geochemistry, contaminant type, and remediation objectives, nitrate may also be an appropriate alternative.

How is this different from Enhanced Anaerobic Reductive Bioremediation?

The primary distinction between enhanced anaerobic reductive bioremediation and enhanced anaerobic oxidative bioremediation lies in the amendment being added. Enhanced anaerobic reductive bioremediation supplies electron donors to drive the reductive dechlorination of chlorinated solvents, whereas enhanced anaerobic oxidative bioremediation supplies alternative electron acceptors, such as sulfate or nitrate, to stimulate the anaerobic oxidation of petroleum hydrocarbons and other biodegradable organic contaminants.

Requirements for Successful Oxidative Bioremediation

Supplying alternative electron acceptors sustains anaerobic biodegradation of petroleum hydrocarbons and other organic contaminants.

Key TakeawaysThe Right Electron Acceptor + Favorable Conditions + Active Microbes = Sustained Biodegradation

Transforming petroleum hydrocarbons into harmless end products.

 Tersus products such as Nutrisulfate® Liquid and Nutrisulfate® BioBoost supply sulfate to sustain anaerobic oxidative biodegradation.

Why Choose Enhanced Anaerobic Oxidative Bioremediation?

  • Sustains microbial activity after naturally occurring electron acceptors are depleted
  • Promotes anaerobic oxidation of petroleum hydrocarbons and other biodegradable organic contaminants
  • Supports long-term, in situ treatment with minimal site disturbance
  • Compatible with bioaugmentation and other biological remediation technologies
  • Utilizes sulfate, nitrate, or other site-appropriate electron acceptors to support long-term anaerobic biodegradation

Typical Applications

  • Petroleum hydrocarbon source areas
  • Dissolved hydrocarbon plumes
  • BTEX and fuel oxygenate (MTBE) impacts
  • Low dissolved oxygen (anoxic) aquifers
  • Source zones with depleted sulfate or nitrate
  • Long-term plume management and polishing

 Explore Related Technologies

In Situ Chemical Oxidation (ISCO)

Rapid chemical destruction of contaminants through in situ oxidation.

Surfactant-Enhanced Aquifer Remediation (SEAR)

Mobilizing and recovering contaminants using specialized surfactants.

Surfactant-Enhanced Aquifer Remediation (SEAR) uses specially formulated surfactants to increase the solubility and mobility of contaminants, improving their recovery from soil and groundwater. SEAR is particularly effective for source-zone treatment and can significantly reduce contaminant mass prior to biological or chemical remediation.

Why Parter with Tersus?

  • Over 40 Years of Remediation Expertise – Practical experience helping consultants, site owners, and regulators solve complex soil and groundwater remediation challenges.
  • Innovative, Field-Proven Technologies – High-performance remediation products and treatment approaches designed for a wide range of contaminants and site conditions.
  • Technical Collaboration – Practitioner-led guidance throughout technology selection, design, implementation, and performance monitoring.
  • Responsive Customer Support – Knowledgeable assistance from budgeting and product selection through field implementation and project completion.
  • Reliable Supply & Fast Delivery – Strategically located warehouses and dependable logistics help keep remediation projects on schedule.
  • Committed to Your Project Success – We measure our success by helping clients achieve effective, practical, and cost-efficient remediation outcomes.

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