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The Importance of Anaerobic Digester Cleaning Systems For Wastewater Treatment

Anaerobic digester mixing systems can play an important role in the treatment of wastewater; in fact, digester wastewater treatment can be both a cost-effective and environmentally friendly way to treat sludge, sewage, and beyond.

To understand why this is the case, it’s necessary to explain just a little bit of the science behind anaerobic digestion wastewater treatment.

An Overview of Anaerobic Digestion Wastewater Treatment

Anaerobic digestion is a biological process in which bacteria help to break down organic matter, including solid waste. What distinguishes anaerobic digestion is that there is no oxygen involved in the process.

Instead, as the bacteria do their job, they generate gases, usually composed mostly of methane. In fact, non-methane gases can be extracted, leaving pure methane that can be used for natural gas energy.

An anaerobic digestion plant can break down various types of organic matter, though it’s important to note that some break down more easily than others. Usually, when organic matter is more “digestible” (that is, easier to break down), higher quantities of methane and other biogases are produced.

There’s a concept called codigestion that’s worth knowing about. Basically, this is when multiple types of organic waste are broken down through anaerobic processes, within the same digester.

Applications for Anaerobic Digestion Mixing Systems

Indeed, there are several different ways in which an anaerobic digestion plant can be useful. For example, anaerobic digestion can help break down the food waste from a cafeteria or a restaurant.  Similarly, this biological process can be used for breaking down greases and oils.

For our purposes today, however, we’re focusing on digester wastewater treatment, which is to say, the process of breaking down the solid components in wastewater, making it easier and more affordable to dispose of that waste.

Different Forms of Anaerobic Digestion

The anaerobic digestion process requires a specialized facility, though there are different forms that the facility may take.

For example, one of the most common digester facilities is what’s known as a covered anaerobic lagoon. In this setup, a flexible cover is placed on top of the digester, and biogas is extracted and collected via a system of pipes.

Another option is what’s known as the complete mix digester, which uses an enclosed and heated tank, augmented with a hydraulic or mechanical gas mixing system.

Batch digesters, fixed-film digesters, and induced blanket reactors may also be used in anaerobic digestion processes.

The Importance of Digester Cleaning

Anaerobic digestion can be highly efficient, but only when the right equipment is in place. Specifically, digester tanks need to be kept clean.

The reason for this is simple: Over time, and through extended use, these tanks can become encrusted in grime, gunk, and crustacea. The more sludge adheres to the inside of the tank, the smaller its capacity becomes… and thus, the less productive it can be.

In order to maintain peak operational efficiency in wastewater treatment, it’s vital for digester tanks and other equipment to be cleaned on a regular basis.

Learn More from P&H Senesac

When it comes to digester cleaning services, P&H Senesac has long been the industry leader. We have worked with countless wastewater treatment companies across the country, providing them the personnel and the equipment they need to keep their digesters in good working order.

Do you have any questions about the role of anaerobic digestion in wastewater treatment? Or, about proper maintenance for your digester? Our team is here to help. Reach out to P&H Senesac any time you’d like to talk.