Aerobic treatment units (ATUs) are an alternative type of septic system, characterized by an air pump to facilitate aerobic decomposition of waste materials. There are several benefits to this approach, including:
- Better quality effluent – Aerobic action does a better job of killing off harmful microorganisms, leaving behind higher quality effluent that has a smaller environmental impact.
- Compatibility with poor soil conditions – Aerobic systems can be used in settings where traditional septic systems are inappropriate. This includes soils with a higher water table or overly dense soils. Many of Houston’s properties are located on poor quality soils.
- Better odor control – Aerobic action kills off much of the odor-causing bacteria present in wastewater, which helps neutralize that sewage smell.
Aerobic treatment units are similar to conventional septic systems in design, but with a few notable differences. Specifically, aerobic systems feature the following components:
- A septic tank (sometimes called a trash tank)
- An aeration chamber
- A clarification chamber
- A disinfection unit (not always necessary)
In addition to these four primary components, your aerobic system will be designed with risers, tubing, control hardware and various sensors to track performance. With so many components powering ATUs, it is standard practice for property owners to protect their aerobic wastewater systems with a maintenance contract. With a maintenance contract in place, many routine failures can be avoided, and rapid service is ensured should the system experience downtime.
The Parts of an Aerobic Treatment Unit
The goal of an aerobic treatment system is to safely capture and contain wastewater for treatment purposes. To do so, the ATU is designed with multiple chambers that include:
- The septic (or trash) tank – The first stop for wastewater is the aerobic septic tank, which functions much like a standard septic tank. This tank is responsible for removing solid wastes which float or settle at the bottom of the tank. In effect, only liquid waste moves to the next chamber.
- The aeration chamber – The standout feature in every ATU is the aeration chamber. An air pump mounted on the surface delivers a constant stream of air into the chamber like a bubbler in an aquarium. Inside the aeration chamber, aerobic action works to break down microorganisms faster, leaving behind higher quality wastewater.
- The clarification chamber – The clarification chamber is where any remaining solids are separated from the liquid wastewater prior to disinfection. This means the ATU’s clarifier acts like a settlement tank, boosting the wastewater’s quality further.
- The disinfection chamber – Not every ATU is built with a disinfection chamber, but they may be necessary in some settings to protect environmental quality. The disinfection chamber works to eliminate the last of the microorganisms present via chlorination or UV disinfecting.
Like standard septic systems, aerobic systems are designed with risers so technicians can access various parts of the system and provide maintenance. Aerobic systems also rely on filters, different types of valves and various sensors and control hardware to operate the ATU.
The Importance of a Septic System Maintenance Contract
Aerobic systems require consistent maintenance to support optimal performance. This is true for all types of septic systems, but it’s especially true for ATUs, which are designed with additional components, including high-wear components like the air pump.
In light of this, reputable septic companies can provide a maintenance contract to their clients that provides ongoing support for the ATU. Maintenance contracts can deliver value to property owners in several ways, including:
- Critical preventative maintenance – Routine preventative maintenance will prevent the majority of messy and expensive septic failures. Preventative maintenance includes regular pump outs to remove sludge and scum from the aerobic system. This is necessary to prevent clogs from building up. Preventive maintenance also includes the occasional inspection to identify excessive wear or leaks. Your technician will also replace any filters that are at risk of becoming overly soiled and clogged.
- Component replacement – Aerobic systems are built with an array of components, many of them small and delicate. Maintenance contracts provide a degree of coverage for any replacement part services, so you’ll always have access to the parts your system needs, when it needs them.
- Rapid repair services – Some maintenance contracts also provide clients with priority response times if a problem does emerge with the aerobic system. This includes availability on the weekends and after standard business hours. Many property owners appreciate the peace of mind that comes with this degree of protection, as any wastewater issues can be isolated and resolved quickly.
Aerobic Systems are an Effective Alternative to Conventional Septic Systems When Properly Installed and Maintained
Aerobic treatment units are versatile wastewater systems, perfectly suited for the Houston area’s clay-rich soils and higher water table. Aerobic systems are distinguished by the use of an aerobic chamber, which accelerates the breakdown of microorganisms.
Aerobic systems are most effective when they are properly maintained. This includes regular pump outs and inspections to spot (and correct) minor issues. With preventative maintenance and prompt repairs, the aerobic system’s life will be extended.
The cost-effective way for property owners to secure on-time maintenance is with a maintenance contract through a trusted septic and aerobic company. By partnering with a reputable septic team, your aerobic system will be protected and perform as it should.
