Septic systems play a crucial role in managing wastewater for homes and businesses that aren’t connected to municipal sewer lines. In Orlando, where protecting our lakes, rivers, and groundwater is a top priority, advanced systems like the ATU (Aerobic Treatment Unit) are becoming more common. These systems provide a cleaner, more environmentally friendly way to handle wastewater — and A1 Septic Orlando is here to help you understand how they work and why they matter.

What is an ATU Septic System?

An Aerobic Treatment Unit septic system, sometimes called a nitrogen-reducing system, is an upgraded version of a traditional septic system. While conventional systems rely on anaerobic bacteria (no oxygen) to break down waste, ATU systems introduce oxygen into the process, allowing aerobic bacteria to thrive. This results in cleaner, higher-quality effluent and significantly reduced nitrogen levels before the water returns to the environment.

How ATU Systems Work:

1. Aeration – Air is infused into the wastewater, creating an oxygen-rich environment for aerobic bacteria to break down organic matter.
2. Nitrogen Transformation – These bacteria convert ammonium nitrogen into nitrate through nitrification.
3. Denitrification – The wastewater moves to a low-oxygen zone, where denitrifying bacteria convert nitrate into harmless nitrogen gas, which is released into the atmosphere.

This process can reduce nitrogen pollution by up to 75%, protecting Orlando’s waterways and ecosystems.

Why Nitrogen Reduction is Important for Orlando:

• Harmful Algae Blooms – Depleting oxygen in lakes and rivers.
• Water Quality Decline – Affecting drinking water sources.
• Ecosystem Disruption – Damaging aquatic life and plant growth.

Advantages of ATU Systems:

• Cleaner Effluent – Reduces pollutants and protects groundwater.
• Adaptable – Works in areas with poor soil or high water tables.
• Environmentally Responsible – Supports cleaner waterways for future generations.

Considerations Before Installing an ATU:

• Higher Initial Cost – More advanced technology means a bigger investment.
• Regular Maintenance Required – More components to inspect and service.
• Electricity Use – Aeration pumps need power to run effectively.

The Importance of Maintenance:

In Florida, many ATU owners are required by law to have ongoing maintenance contracts with certified providers. Regular servicing:

• Keeps the system running efficiently.
• Prevents costly repairs.
• Ensures compliance with environmental regulations.

Final Thoughts:

ATU septic systems are a smart choice for environmentally conscious homeowners in Orlando. While they require more attention than traditional systems, their benefits to water quality and public health are well worth it.

If you’re interested in installing or maintaining an ATU septic system, A1 Septic Orlando offers expert service, from inspections to full maintenance plans.

📞 Call us today for a free consultation and keep your septic system performing at its best.