Circular waste water solutions

Every drop counts

Alnarp Cleanwater Technology offers innovations that help you protect the water and the environment. With bio-purification plants that imitate nature, rainwater tanks and products for increased biodiversity  you can do a lot:


This is Alnarp Cleanwater Technology


A world in balance. Where we help our customers create a circular and sustainable society without eutrophication and pollution in the environment and water. Where biodiversity is favored.

Environmental knowledge meets technical competence
At our head office in beautiful Alnarp, technical competence meets environmental knowledge. All employees at Alnarp Cleanwater have in common that we want to make it easy and beneficial for owners of individual sewers to be environmental heroes. We are concerned about the negative impact on the environment that individual drains often have.

That is why we are incredibly proud of our bio-purification plant, which solves the problems in a natural way while also being a smoother and more robust product for our customers.

Our products

Biopurification plant

Our ACT® biological wastewater treatment plant provides a reliable, stable, long-term functionality for your wastewater treatment.
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The Biodiversity meadow package includes herb plant plugs and seeds to create a Swedish summer meadow of ten to twenty square meters
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Biopurification plants

Robust biological processes – low maintenance

Since ACT® is based on natural processes it requires close to no maintenance and no supply of chemicals which saves you both time and money. Thanks to our unique sludge degrading system sludge removal is put to a minimum (approximately every 10th year).The microorganisms and plants adapt automatically to variation in wastewater load, meaning that no adjustments are needed once everything is installed.

All users, from small households to large facilities such as hotels, benefit from using ACT®. It can easily be upgraded to manage larger loads of sewage or tougher treatment requirements.


ACT® has an outstanding ability to take care of unwanted substances. Tests carried out by the Swedish Environmental Research Institute show that ACT® purifies the water from pharmaceutical residues better than average municipal wastewater treatment plants.

How does it work?

ACT® treats the wastewater in one to three steps depending on the circumstances at your property. In the first step, ProACT®, microorganisms are degrading the sludge. Thanks to special structures in the tank, there is a lot of surface for microorganisms to form biofilm (their home). The oxygen level in the tank is low. These factors combined result in degradation of the sludge which minimizes the need for sludge removal. Approximately one sludge removal every 10th year is needed.

From ProACT® the wastewater is pumped to InterACT® where it is exposed to other types of microorganisms and to natural aquatic plants whose root systems also make up a good environment for the microorganisms. The plants as well as the microorganisms feed on nutrients in the wastewater.

In some cases, an additional treatment step, ReACT®, is required to achieve extra reduction of phosphorus to prevent eutrophication. In ReACT® phosphorus is bound to a lime material. When the filter material is saturated with phosphorus it can be spread on farmland as a fertilizer.

ACT® is a very robust system requiring electricity only to power a water pump and an air pump. A micro-computer together with a static level meter in ensures stable operation and monitoring of the system.

ProACT, InterACT och ReACT

How to acquire a waste water treatment plant

1: Treatment demands

The treatment demands are decided by the municipality and depend on the distance to sensitive water streams and what type of soil you have on your property. If you do not already know what demands apply to your property, we will provide you with that information.

2: Get permission

Before installing a new wastewater treatment plant you need permission from the authorities. We gladly assist you in filling out the application form.

3: Installation

We are happy to visit you in order to advice you regarding the best solution for your property (free of charge). ACT NaturalTM is easy to install and we can help you to find a contractor who can perform the installation.

Biodiversity meadow package

Increase the biodiversity in your garden

Får vi lov att föreslå lite slow gardening i form av en svensk äng i din trädgård? Med vårt Ängspaket ”Biologisk Mångfald” så kommer du att kunna njuta av ett litet stycke kulturlandskap och en boost av den biologiska mångfalden utanför din egen dörr. För att du inte ska behöva vänta flera år förodlar vi örtpluggar under våren så att du kan plantera dem samtidigt som du sprider fröer för hela ängen någon gång i slutet av maj. På så vis kommer du att ha blommande örter i din äng redan i sommar.
En surrande sommaräng

Become a champion of biodiversity!​

The Biodiversity Meadows Package includes herb plugs and seeds to create a Swedish summer meadow of ten to twenty square meters. The herb plugs make your meadow bloom already in the first summer. If you used only seeds, it could take up to three years before you reach that result. When you plant a meadow with herbs, grass and flowers that belong to the Swedish flora, you give our insects, small animals and birds the right conditions to live and reproduce. You become a champion of biodiversity and that usually feels very good.

Slow gardening

Creating a Swedish summer meadow is not for those in a hurry. However, it is something for you who want to see more of biological diversity and cultural landscape. If you thrive among butterflies and honey bees, if you admire herbs that have been hardened and adapted to the Swedish seasons over millennia, then our meadow package Biodiversity is something for you to take on. If you have an old scythe, it is great for your new meadow (although it works just as well with a modern grass trimmer).

Many meadow species germinate and grow slowly. In the first year, you may experience your meadow as sparse. The earliest species normally flower in the second year after sowing. Some varieties take up to 5 years before they flower. But we have not included them in this mix. Instead, you have the 120 plugs that are already in year two and will therefore flower already this summer.

Lets meet!

Are you interested in our products? Do not hestitate to sign up for a contact. We have sales people in the southern half of Sweden. 

Myskmalvan är en svensk ört som ingår i Startpaket Surrande sommaräng.