Septic systems are an essential part of many households' wastewater treatment systems, providing a means for the safe and effective treatment of sewage. There are several different types of septic systems, each with its own unique characteristics and benefits. In this blog post, we'll take a closer look at some of the different types of septic systems, including their features and capabilities.
Conventional septic systems: Conventional septic systems are the most common type of septic system and are used in a wide variety of settings. These systems consist of a septic tank and a leach field (also known as a drain field). The septic tank is a large, watertight container that is buried underground. It is designed to hold sewage and allow it to decompose through the process of anaerobic digestion. As the sewage decomposes, it is separated into three layers: solids, water, and scum. The solids and scum are retained in the tank, while the water is allowed to flow out into the leach field. The leach field is a series of trenches or beds that are filled with gravel or other porous material. The water is slowly absorbed into the ground, where it is treated by natural processes.
Aerobic treatment units (ATUs): Aerobic treatment units (ATUs) are a type of septic system that uses oxygen to treat sewage. These systems consist of a treatment tank and a pump tank. The treatment tank is similar to a conventional septic tank, but it is equipped with an air blower that pumps oxygen into the tank. This oxygen helps to break down the sewage more quickly, resulting in a higher quality effluent. The pump tank is used to pump the effluent from the treatment tank to the leach field. ATUs are typically more expensive than conventional septic systems, but they can be more effective at treating sewage and may require less maintenance.
Low-pressure dosing systems: Low-pressure dosing systems are a type of septic system that uses a pump to periodically distribute small amounts of effluent from the septic tank to the leach field. These systems are designed to minimize the amount of water that is used and to reduce the risk of overloading the leach field. Low-pressure dosing systems are often used in areas with high water tables or other soil conditions that make it difficult to use a conventional septic system.
Decentralized wastewater treatment systems: Decentralized wastewater treatment systems are a type of septic system that is designed to treat sewage onsite, rather than transporting it to a central treatment plant. These systems can be used in areas where it is not practical or cost-effective to connect to a central sewage treatment plant. Decentralized wastewater treatment systems can be designed to treat sewage to a high level of purity, making the treated water suitable for reuse.
In conclusion, there are several different types of septic systems available, each with its own unique features and capabilities. Conventional septic systems are the most common type, but aerobic treatment units and low-pressure dosing systems may be more appropriate in certain situations. Decentralized wastewater treatment systems can be used to treat sewage onsite, making them a viable alternative to central sewage treatment in certain cases. Regardless of the type of septic system you choose, it is important to properly maintain and care for it to ensure that it continues to function effectively.