Recycled fertilisers from organic side streams
Nanopar has developed a novel method for drying of organic municipal and industrial sludges. The company, located in Puumala, is embarking on to the European market.
The Paskíer® Process is based on to vacuum assisted medium wave infrared technology and will dry organic sludges with the economy and efficiency, not known before. The solid matter content of the dried sludge is over 90%. The technology is patented.
– The Paskíer® Process equipment is installed directly to the wastewater treatment plants. In most of the cases it can be installed on to one or two 40 ft sea containers. It provides direct cost savings to the customer by eliminating the costs from transporting the sludge and the gate fees. The payback period for Paskíer® Process equipment is about 2–3 years, says Nanopar CEO Jaakko Kuntonen.
– The evaporation of one litre of water requires about 1 kWh of energy with conventional drying methods. Our technology evaporates two litres of water with the same amount of energy.
The sludge is dried to contain more than 90% DS and being organic, it is excellent soil conditioner. The dried sludge can be used as a base ingredient for producing recycled fertilizers by adding nutrients as per the soil and crop specific requirements. Nanopar fertilizers are approved by the Finnish Food Authority.
Nanopar has been developing the technology since 2017. In the early stages, the company is focusing on small and medium size municipal wastewater treatment plants. In the future, the company will be making an impact throughout the EU.
– Finland has about 650 wastewater treatment plants, most of which are small. We are bringing the technology to wastewater treatment plants so that fertilisers are made near the treatment plant, and the customers are local farmers, Kuntonen says and continues:
– When you think about the EU, there are about 180 million hectares of agricultural land, and our fertilisers could be used in most of that area.