Small-scale wastewater treatment plants

Choose the right small-scale treatment plant for your property

When an existing private sewage system needs replacing, or during new construction, strict requirements apply to wastewater treatment. A certified small-scale wastewater treatment plant functions like a miniature municipal treatment plant; it breaks down organic matter, reduces oxygen-consuming substances, and precipitates phosphorus highly effectively before the water is discharged into a receiving body or undergoes final polishing.

Advantages of a small-scale treatment plant

• Compact installation: Takes up minimal space on the property compared to conventional infiltration beds and soil-based systems.
• High treatment capacity: Designed to meet regulatory requirements for both normal and high protection levels regarding phosphorus, nitrogen, and biological oxygen demand (BOD).
• Flexible placement: An excellent option for properties with bedrock, clay, dense till, or high groundwater levels where infiltration is not feasible.
• Clear monitoring: Easy sampling via a sampling well ensures the system performs according to requirements.

Important considerations before purchasing

Before ordering, the property's specific conditions should be carefully assessed to select the right size and design.

• Capacity and population equivalents (PE): Choose a model suited to the household size and load. A standard single-family home is usually sized for 5 PE, whereas multi-family homes, multi-generational housing, or shared systems require models rated for 6 to 10 PE or more.
• Municipal permits and protection levels: Always contact your municipality's environmental department before installation. They determine whether the site requires a normal or high protection level, and whether the system needs to be supplemented with specific final polishing or UV treatment. Ground conditions and anchoring: When excavating in moist soil or areas at risk of high groundwater levels, it is important to secure the tank with an approved anchoring system to prevent it from floating up when emptied.
• Service and maintenance: A small-scale wastewater treatment system requires regular sludge removal, technical inspections, and the replenishment of precipitation chemicals to maintain the guaranteed treatment performance over time. Always enter into a service agreement in accordance with municipal guidelines.

Choosing the right system from the start ensures a sustainable and approved wastewater treatment facility that protects both the local environment and the property value for many years to come.