Aerobic vs. Anaerobic Septic Systems

There are two main types of septic systems: aerobic and anaerobic septic systems. The basic difference between the two is the presence or absence of oxygen. An aerobic septic system requires oxygen to carry out wastewater treatment. An anaerobic septic system, on the other hand, completes the process without the presence of oxygen—or at least very low levels of oxygen. Let’s look at the key differences between these two types of septic systems in greater detail.

Presence of Oxygen

As we’ve already highlighted, this is the primary difference between the two systems. An aerobic system uses oxygen to break down waste. An air pump constantly injects oxygen into the tank, creating an environment where aerobic bacteria thrive. These systems are more efficient when it comes to wastewater treatment and can handle higher loads. In an anaerobic system, the naturally occurring anaerobic bacteria don't require oxygen to function.

Bacteria Types

Another key difference between the two septic systems lies in the type of bacteria they use to break down waste. Aerobic systems promote the growth of aerobic bacteria, which are more efficient at breaking down waste compared to their anaerobic counterparts. Anaerobic systems rely on anaerobic bacteria, which break down waste but at a slower rate and may not be as effective for certain types of waste. No matter the type of septic system you have, it’s important to keep the bacteria at healthy levels. Here are some tips to keep the bacteria in your septic tank healthy.

• Don’t flush inappropriate items
• Use septic-safe products
• Use the system properly
• Schedule regular septic tank pumping
• Schedule septic tank cleaning as needed

Drain Field Requirements

Due to the more efficient breakdown of waste, aerobic systems may require a smaller drain field compared to anaerobic systems. This can be an advantage if space is limited on your property. Anaerobic systems require a larger drain field, as the less-treated effluent needs more space to disperse into the soil. This is one of the crucial factors you’ll need to consider when installing a septic system. Make sure you consult with septic technicians specializing in septic tank installation for professional guidance.

Operating Expenses

Aerobic systems tend to be more expensive than anaerobic systems. They have higher operating expenses due to the electricity needed to power the air pump. They may also require more frequent maintenance to ensure the pump and other components are functioning properly. The good news is, aerobic systems are more effective and are suitable for sites with limited space. On the other hand, anaerobic systems are less intricate; hence, they have lower operating expenses. They don't require electricity and have simpler designs, leading to less frequent maintenance needs. However, it doesn’t mean you neglect routine septic system maintenance tasks such as septic tank pumping and cleaning. It’s important to schedule regular septic system maintenance with a trusted septic company.

Looking for a trusted septic company? Get in touch with Rooter Man Plumbing. We’ve built an exceptional reputation over the years for offering first-class septic services. Whether you’re in need of septic system installations or septic tank repair, we are the company you can rely on for professional services.