Microbial-Induced Corrosion2026-08-10T09:27:20-04:00
Applications

Microbial Induced Corrosion (MIC) Control for Wastewater Systems

Hydrogen sulfide doesn’t just create unpleasant odors—it can also contribute to microbial induced corrosion (MIC), one of the leading causes of deterioration in wastewater collection and treatment systems. VAPEX helps reduce hydrogen sulfide in the airspace, supporting long-term infrastructure protection with chemical-free hydroxyl radical technology.

understanding the problem

What Is Microbial Induced Corrosion (MIC)?

Microbial Induced Corrosion (MIC) is a biological corrosion process that affects concrete and metal infrastructure throughout wastewater collection and treatment systems.

In wastewater environments, anaerobic bacteria produce hydrogen sulfide (H2S). When H2S enters the airspace above the wastewater, it can be oxidized by naturally occurring bacteria on moist surfaces into sulfuric acid. Over time, this acid attacks concrete and metal surfaces, leading to structural deterioration.

Without proper management, MIC can significantly shorten the lifespan of wastewater infrastructure and increase maintenance and rehabilitation costs.

Signs of Microbial Induced Corrosion

Strong hydrogen sulfide (H2S) odors

Surface deterioration of concrete structures

Corrosion of metal equipment and piping

Premature infrastructure repairs

the vapex advantage

How VAPEX Reduces MIC-Contributing Conditions

VAPEX systems use advanced hydroxyl radical technology to oxidize hydrogen sulfide and other sulfur-based compounds in the airspace before they contribute to odor problems and corrosive conditions. By reducing airborne H2S concentrations, VAPEX helps minimize one of the primary contributors to microbial induced corrosion.

Extend Infrastructure Life

Protect valuable wastewater assets and delay costly rehabilitation projects.

Reduce Maintenance Costs

Lower the frequency of repairs caused by corrosion-related deterioration.

Improve System Reliability

Maintain reliable operation of wastewater collection and treatment infrastructure.

Support Asset Management

Integrate odor control and corrosion mitigation into long-term infrastructure planning.

Recommended Products

Systems Designed for Mitigating MIC

Microbial induced corrosion can significantly impact the long-term reliability and cost of wastewater infrastructure. VAPEX helps municipalities and industrial facilities reduce hydrogen sulfide and improve air quality as part of a comprehensive corrosion management strategy.

Pico

Compact decentralized odor control

Nano

Small to medium wastewater facilities 

Micro

Mid-capacity wastewater applications 

Milli

High-capacity municipal and industrial facilities

Frequently Asked Questions (FAQ)

Can VAPEX replace a complete corrosion management program?2026-08-10T09:21:26-04:00

VAPEX is an important part of a comprehensive corrosion management strategy. It helps reduce airborne hydrogen sulfide, but long-term infrastructure protection should also include regular inspections, preventive maintenance, and sound system design.

Which wastewater facilities are most at risk?2026-08-10T09:21:13-04:00

Lift stations, wet wells, force mains, manholes, headworks, collection systems, and wastewater treatment plants are common locations where MIC can occur.

How does VAPEX help reduce MIC?2026-08-10T09:21:00-04:00

VAPEX uses hydroxyl radical technology to reduce airborne hydrogen sulfide and other sulfur-based compounds, helping reduce conditions that contribute to microbial induced corrosion.

How does hydrogen sulfide contribute to corrosion?2026-08-10T09:20:48-04:00

Hydrogen sulfide released from wastewater can be converted into sulfuric acid on moist surfaces above the wastewater, accelerating the deterioration of concrete and metal assets.

What is microbial induced corrosion (MIC)?2026-08-10T09:20:29-04:00

MIC is a biological corrosion process in wastewater systems where hydrogen sulfide is converted by naturally occurring bacteria into sulfuric acid, which attacks concrete and metal infrastructure.

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Ready to Improve Wastewater System Performance?

Every wastewater site behaves differently. VAPEX starts with the problem, the environment and the operating goal before recommending equipment.

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