If you find yourself in a position of needing to install a wastewater management system on your property, you have probably come across many types of septic solutions. How do you know which is right for you? It all depends on the size of your property, your septic needs, and what you’re looking for when it comes to wastewater treatment. If you’ve never considered an aerobic treatment unit (ATU), you might be surprised to learn it could be the solution you need. ATUs are advanced septic systems that use oxygen to treat wastewater more efficiently than traditional systems. For more information on what an ATU is, how it works, and what’s involved in installing one, take a look at our comprehensive guide below.
What is an ATU?
An aerobic treatment unit is a type of on-site wastewater treatment system that introduces oxygen into the treatment process. Unlike conventional septic systems, which rely on anaerobic bacteria to break down waste, ATUs use aerobic bacteria that thrive in oxygen-rich environments. This results in cleaner wastewater, making ATUs an excellent choice for environmentally sensitive areas or properties with challenging soil conditions.
Key Components of an ATU:
- Aeration Chamber: Where oxygen is pumped into wastewater to support aerobic bacteria.
- Settling Chamber: Allows solids to settle out of the treated water.
- Disinfection Unit (Optional): Some systems include UV or chlorine disinfection to further purify the waste.
- Discharge System: Releases treated water into the drain field or other dispersal area.
Benefits of Installing an ATU
ATUs offer several advantages over conventional septic systems, making them a popular choice for specific situations.
- Improved Wastewater Treatment: Produces cleaner effluent, reducing the risk of contamination to groundwater and surrounding ecosystems.
- Smaller Drain Field Requirements: The treated waste is cleaner, so it requires less of a soil absorption area.
- Adaptability: Ideal for properties with poor soil drainage, high water tables, or small lot sizes.
- Environmental Friendliness: Reduces the environmental footprint by treating wastewater to a higher standard.
Steps Involved in Installing an ATU
Installing an ATU requires careful planning and professional expertise. Here’s an overview of the process:
- Site Evaluation:
- A licensed professional will assess your property’s soil type, slope, and water table.
- Local regulations and permitting requirements will also be considered.
- System Design:
- The ATU system is customized based on your household size and wastewater needs.
- The design will specify the location of the aeration chamber, settling chamber, and dispersal area.
- Permitting:
- Obtain the necessary permits from local health or environmental authorities.
- This step ensures compliance with regional codes and regulations.
- Installation:
- Excavation and placement of tanks, aerators, and pipes.
- Electrical components, such as pumps and aerators, are connected and tested.
- Inspection and Approval:
- A final inspection is conducted to ensure the system meets local standards.
- Once approved, the system is ready for use.
Maintenance Requirements for an ATU
Regular maintenance is essential to keep an ATU functioning properly. While ATUs offer advanced treatment, they also require more upkeep compared to traditional systems.
- Routine Inspections:
- Schedule professional inspections at least twice a year.
- Inspect aerators, pumps, and other mechanical components.
- Pump-Outs:
- Remove sludge and solids from the system every 1-3 years, depending on usage.
- Electrical Monitoring:
- Ensure the aerator and any alarms or timers are functioning correctly.
- Disinfection Maintenance (if applicable):
- Replace chlorine tablets or maintain UV disinfection units as needed.
Is an ATU Right for Your Property?
An ATU may be the perfect solution for your wastewater needs if:
- You have poor soil conditions that prevent effective drainage.
- Your property is located near environmentally sensitive areas, such as lakes or streams.
- You’re dealing with space constraints for a traditional drain field.
Installing an ATU is an investment in the health of your property and the environment. While the process requires planning and professional expertise, the benefits of cleaner waste, flexibility within your property, and environmental protection make it worth considering for many homeowners. To ensure proper installation and maintenance, always work with a licensed septic service professional like Quality Septic Inc.
