Types of Moisture Purge Systems

Moisture purge systems are crucial for optimal aeration system operation. Without them, wastewater plants can face several challenges, from reduced efficiency to ineffective water treatment.

Understanding each type of moisture purge system can help facilities find the right options for their unique operational needs. Learn more about this critical equipment, how it works and key considerations for getting the right system from SSI Aeration, Inc.

A moisture purge system removes excess moisture — particularly condensation —  from an aeration system.

Condensation can accumulate in aeration components due to temperature fluctuations when air is introduced to the wastewater. Moisture in the system causes the following issues:

• Less effective biological wastewater treatment
• Decreased airflow efficiency
• Equipment corrosion
• Mechanical failures
• Blockages
• Odors

An effective purge system can combat these challenges, enhancing aeration efficiency to ultimately improve system performance and longevity.

What Does It Mean to Purge Water?

Purging water involves actively removing accumulated water from a fine bubble aeration system’s components, including its piping and diffusers, using specially designed purge solutions.

Explore key types of water purge systems and their unique features below.

1. Single Point

A single-point purge system consists of a valve or purge point. An operator manually opens this valve to remove accumulated moisture. They can purge the water when needed or at specific intervals. Single-point systems feature a simple design and are easy to operate. They are also cost-effective.

2. Dual Point

Dual-point purge systems use two purge points or valves. Their design enables more flexibility in water removal, allowing the operator to choose which point to purge. These models allow for targeted operations and improved control over purging, contributing to efficient and effective moisture management.

3. Continuous Point

Continuous point purge systems automatically remove accumulated water without requiring manual intervention from operators. These systems leverage timers, sensors and autonomous controls to carefully monitor moisture levels in the aeration system. These purging solutions allow for consistent purging, allowing for optimal airflow.

4. Dry Air

A dry air purge system removes water by introducing dry air into the aeration components and piping. This model pushes the water out of the system by forcing air throughout. Some facilities use dry air purge systems with other solutions to increase efficiency.

5. Pumped Purge

Pumped purge systems actively eliminate moisture using a pump that draws water from the aeration system. The pump then discharges the water to a holding tank or drain. This option can integrate with other control systems for automated operation where the system removes excess water according to specified intervals or moisture levels.

Assess the following factors to determine the right water purge system:

• System requirements: Evaluate the volume of moisture accumulating in the aeration system. Facilities with significant condensate may require robust, automated systems to support efficiency. The aeration system’s design will also influence the best-suited purge solution.
• Operational needed: Assess how frequently the aeration system requires purging. Consider whether operations would benefit from manual or automated systems. Facilities wanting to reduce labor requirements should choose automated options.
• Maintenance capabilities: Complex purging systems will require more upkeep than simpler models. Determine facility maintenance capabilities and any staff training necessary for effective purging operation before selecting a new system.
• Costs: Compare initial costs for different water purge solutions, including installation and equipment expenses. Balance price with efficiency and ongoing operational costs, like energy and maintenance.

Wastewater treatment facilities should consult a professional to determine the best solutions for their unique requirements. An expert from SSI Aeration, Inc can assess the aeration system and find the water removal equipment needed to support regulatory compliance and optimal performance.

Turn to SSI Aeration, Inc for reliable, high-quality moisture purge systems. As your trusted source for wastewater treatment solutions, we have the expertise and products to support and improve your facility’s operations.

SSI Aeration, Inc, is a global leader in wastewater treatment plant equipment design and manufacturing. We can help you choose the right aeration and moisture purge systems to drive efficiency and efficacy.

Contact SSI Aeration, Inc to learn more about our available condensate purge systems.