Biological treatment plants
Choose a proven solution for your property ā AUGUST biological treatment plants with a 10-year warranty, low running costs and eco-friendly operation. Available across Latvia.
Get a quote within 1 working day.
Standarta modelis
AT SERIES
AT series biological wastewater treatment plants are designed for properties without a connection to the central sewer. The solution offers high treatment efficiency, low energy consumption and little excess sludge, providing safe and economical treatment of household wastewater every day.
| Model | Residents | Capacity | Treated volume (m3/day) | Price (incl. VAT) | |
|---|---|---|---|---|---|
| AT-6 | 1-4 | 0.6 | 0.6 | 1720 ā¬ | Learn more |
| AT-8 | 1-6 | 0.8 | 0.9 | 1930 ā¬ | Learn more |
| AT-10 | 2-8 | 1.2 | 1.2 | 2610 ā¬ | Learn more |
| AT-12 | 3-10 | 1.6 | 1.5 | 3030 ā¬ | Learn more |
| AT-15 | 5-12 | 2.2 | 1.8 | 3565 ā¬ | Learn more |
| AT-20 | 6-18 | 4.3 | 2.7 | 4800 ā¬ | Learn more |
Model with a reduced lid
ATK SERIES
Biological treatment plants with a fully in-ground design ā the compressor and smart control unit sit under one lid. Everything is level with the lawn, so the plant blends into the yard and doesn’t get in the way of lawn care, including robotic mowers.
| Model | Residents | Capacity | Treated volume (m3/day) | Price (incl. VAT) | |
|---|---|---|---|---|---|
| AT-6K | 1-4 | 0.6 | 0.6 | 1870 ā¬ | Learn more |
| AT-8K | 1-6 | 0.8 | 0.9 | 2030 ā¬ | Learn more |
| AT-10K | 2-8 | 1.2 | 1.2 | 2820 ā¬ | Learn more |
Fully automated model
AT-PLUS SERIES
Fully automated household biological treatment plants with a microprocessor control unit. The AT PLUS series provides automatic aeration and recirculation control, more operating modes (everyday, holiday house, etc.) and alarm signals in case of faults.
| Model | Residents | Capacity | Treated volume (m3/day) | Price (incl. VAT) | |
|---|---|---|---|---|---|
| AT-6 PLUS | 1-4 | 0.6 | 0.6 | 2200 ā¬ | Learn more |
| AT-8 PLUS | 1-6 | 0.8 | 0.9 | 2410 ā¬ | Learn more |
| AT-10 PLUS | 2-8 | 1.2 | 1.2 | 3090 ā¬ | Learn more |
| AT-12 PLUS | 3-10 | 1.6 | 1.5 | 3510 ā¬ | Learn more |
For installation in a driveway
AT GB SERIES
These models are designed for installation in reinforced concrete rings under driveways. Thanks to integrated brackets, the compressor compartment and control unit are mounted directly on the plant body, providing a compact, easily adaptable solution that runs smoothly even in enclosed spaces.
| Model | Residents | Capacity | Treated volume (m3/day) | Price (incl. VAT) | |
|---|---|---|---|---|---|
| AT-6GB | 1-4 | 0.6 | 0.6 | 1720 ā¬ | Learn more |
| AT-8GB | 1-6 | 0.8 | 0.9 | 1930 ā¬ | Learn more |
| AT-10GB | 2-8 | 1.2 | 1.2 | 2610 ā¬ | Learn more |
| AT-12GB | 3-10 | 1.6 | 1.5 | 3030 ā¬ | Learn more |
| AT-15GB | 5-12 | 2.2 | 1.8 | 3565 ā¬ | Learn more |
| AT-20GB | 6-18 | 4.3 | 2.7 | 4800 ā¬ | Learn more |
modular design ā capacity can be adapted to a specific project
Wastewater treatment plants for commercial sites
Wastewater treatment plants for large sites are designed for sites with a load of over 50 people (PE) where reliable, efficient and sustainable wastewater treatment is needed. These solutions suit commercial sites as well as public and industrial buildings where there is no central sewer or an autonomous solution is required.
Biological wastewater treatment plants provide high treatment efficiency, stable operation even under uneven loads, and meet current environmental protection requirements. They are suitable for long-term operation, reducing running costs and the impact on the environment.
Biological wastewater treatment plants provide high treatment efficiency, stable operation even under uneven loads, and meet current environmental protection requirements. They are suitable for long-term operation, reducing running costs and the impact on the environment.
Frequently asked questions
When should you choose a biological treatment plant?
A biological treatment plant is the best choice where it is not possible to connect to the central city sewer. Unlike ordinary settling tanks, it is an eco-friendly long-term solution that provides a high level of treatment and does not cause unpleasant odours.
Can I clean the house with ordinary household chemicals if I have a bio sewerage system?
Yes, absolutely! Most cleaning products available in shops do not harm the sludge ā the microorganisms can process them. However, the microorganisms will not process large amounts of dairy products, and industrial chemicals, paints and other corrosive substances that could kill the sludge must not be discharged into the treatment plant.
What is the biggest "enemy" of a biological treatment plant?
Items that don't dissolve or break down: wet wipes, cotton buds, condoms, hair, cigarette butts and construction chemicals (paints, solvents). These things won't harm the bacteria straight away, but they can physically block the system, which means unnecessary costs for calling out a technician.
Do I need to start using special "bio" bacteria sold as powders?
If the plant is working correctly and is used every day, no extra bacteria need to be added. The plant maintains the necessary level of microorganisms itself.
Will I have to change my daily life drastically with a biological treatment plant?
No, your lifestyle will hardly change. The plant is designed to adapt to the rhythm of modern life. The only real difference from a city sewer is that you become responsible for making sure no non-degradable waste enters the system that could physically block it.
How much electricity does a biological wastewater treatment plant use?
The plants' power consumption is low, as they run on a 60 W diaphragm compressor. For an AT series plant it averages 32 EUR a year (270 kWh). Of course, a larger plant gets a more powerful compressor, but the cost may only rise by a couple of euros.
Why is it important to buy a plant with a CE certificate?
This marking confirms that the plant has undergone quality tests during certification and meets European Union requirements. A plant without this certificate has certainly not been tested and most likely will not be able to treat wastewater properly. Buying a marked and certified plant makes it easier to commission the site and to present all the necessary documents to the State Environmental Service if needed.
What installation options are there for a biological wastewater treatment plant?
Our manager can recommend the best solution after a site survey, which determines where the plant can be installed and where the treated wastewater can be discharged. Treated water can be discharged in four ways:nnto a nearby ditch;nto an infiltration field using a ring shaft with washed gravel at the bottom;nif the groundwater level on site is high, a pumping station with a pump is installed before the infiltration field. After the plant, the pump lifts the treated wastewater to an infiltration field built on a mound (~80 cm above ground level);nif the outlet from the house is deeper than the plant's inlet pipe, a pumping station is installed before the plant. The pump lifts the incoming wastewater up to the plant.
How much does a biological treatment plant cost?
The price of a plant for a private house (4 to 6 people) usually starts from 1930 EUR. The total cost is made up of the plant, earthworks and installation. We prepare an exact price after a free consultation, assessing the groundwater level and the depth of the inlet on your property.n
Why AUGUST biological treatment plants?
AUGUST biological wastewater treatment plants are the safest choice for properties across Latvia without a connection to the central sewer. The plants meet the European standard EN 12566-3 and achieve a treatment efficiency of up to 98.2% (BODā ), confirmed by independent certification in Germany. A virgin polypropylene tank, a SMART controller and low power consumption make this a sustainable, economical and practical decentralised sewerage alternative for private houses and businesses.
Completed project
AUGUST AT-20 for a future guesthouse in Ventspils municipality: when an old inn comes back to life.
History meets modern technology It’s not every day we get to take part in a project where new technology gives a second life to a historic building. An interesting project is under way in Ventspils municipality ā an old inn…
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