The Paljasaare wastewater treatment plant in Estonia´s capital city Tallinn is one of the largest in the baltic region, treating 133,000 cubic meters of urban wastewater every day, which is the equivalent of a 500,000 population. Operations began in 1981 and combined biological and chemical treatment was implemented in 1995. The Operator Tallinna Vesi has lead the plant to become one of the most sustainable and energy efficient wastewater facilities in Europe. The plant is producing biogas from sewage sludge to reduce heating and electricity costs.
In 2024 Tallinna Vesi made a conscious decision to switch from conventional polymers to Kemira´s new Superfloc® BioMB, to further support their sustainability targets.