A septic tank breaks down waste and has a soakaway. A sewage treatment plant is designed to treat and process raw sewage over different steps involving breaking, filtering, settling, controlled aerobic decomposition and chemical treatment.
When it comes to managing wastewater, there are two common options: septic tanks and sewage treatment plants. While both systems work to break down waste, they differ in their processes and maintenance requirements.
Septic tanks are often used in rural areas where centralised sewer systems are not available. They are essentially large underground containers that hold household wastewater, allowing solids to settle to the bottom while letting liquid flow out to a drain field for further filtration. Bacteria within the tank break down the solids, but the effluent that exits the tank is still considered untreated wastewater. Septic tanks do not require electricity to operate and are generally low-maintenance, with the only necessary upkeep being occasional pumping to remove the accumulated solids.
Sewage treatment plants, on the other hand, are designed to treat and process raw sewage over multiple stages, resulting in a higher level of wastewater treatment. The process typically involves breaking down solids through anaerobic digestion or other means, filtering the wastewater to remove smaller particles, settling out remaining solids, and then treating the water chemically to remove bacteria and other harmful contaminants. Sewage treatment plants require a significant amount of electricity to power the treatment process, including air pumps for aerobic decomposition. They also require regular maintenance and emptying to keep the system functioning properly.
In terms of maintenance and cost, septic tanks are generally less expensive to install and maintain than sewage treatment plants.
Do septic tanks need servicing?
Septic tanks do not require regular servicing, but they do need to be pumped out periodically to remove the accumulated solids. The frequency of pumping depends on the size of the tank and the number of people using it, but it is typically required every three to five years. In contrast, sewage treatment plants require ongoing maintenance to keep the system functioning effectively. This includes regular servicing of pumps, filters, and other equipment, as well as periodic emptying of the tank. The frequency of emptying can vary depending on the size of the plant and the volume of wastewater it handles.
Overall, both septic tanks and sewage treatment plants have their benefits and drawbacks, and the right choice depends on individual circumstances. Septic tanks are a good option for rural areas with limited access to centralised sewer systems, while sewage treatment plants are better suited for areas with higher population density and stricter environmental regulations. Ultimately, it is important to consult with a professional to determine the best option for your specific needs.
Contact us here at Clean My Tank for more information.
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