The shift from a conventional wastewater treatment plant towards a resource recovery facility has become a priority focus in Denmark. Consequently, BIOFOS is now in the transfer process towards optimising resources from waste without compromising the environment.
A new project – VARGA(Water Resource Recovery Facility) – aims to transform the traditional treatment plant Avedøre WWTP (350,000 PE) into a Water Resource Recovery Facility, by implementing several innovative technologies within wastewater treatment, nutrient recovery and greenhouse gas reduction. Major elements in the project include pre-filtration in full scale, P recovery in pilot scale and active reduction of N2O.
As part of the project, a Life Cycle Assessment and an eco-efficiency analysis has been conducted. Initial results show that the Total Added Value is higher after implementing the VARGA concept compared to business as usual – without compromising the treatment efficiency.
Circular economy is central for the project and the experiences gained further contribute to the Danish national goal of an energy and climate neutral water sector in 2030 as well as the UN agenda on sustainable development.
The VARGA project is in fully compliance with BIOFOS´ strategy 2020-2025.
This strategy fully integrates seven of the UN Sustainable Development Goals with SDG’: 6, 7, 11, 12, 13, 14 and 17.
Also featured in: Water for smart liveable cities
BIOFOS is Denmark’s largest wastewater utility company. We treat wastewater for 1.2 million people living in the Copenhagen metropolitan area. BIOFOS integrates the UN SDG 6, 7, 11, 12,13,14 and 17 in our strategy.
Contributors to this solution
Unisense Environment has developed the world's only N2O (nitrous oxide) Wastewater Sensor for direct measurement in wastewater treatment processes. Nitrous oxide is a strong green house gas 300 times more potent than CO2 and emissions from N2O can account for as much as 90% of total carbon footprint from wastewater treatment. The N2O Wastewater System from Unisense Environment enables real-time and on-site quantification of dissolved N2O and emission from wastewater treatment processes. New state-of-the-art bioprocess and emission mitigation controls can be developed using N2O sensor input yielding a clear environmental advantage over standard control regimes. Unisense Environment was established in 2014 by a team of university scientists with more than 20 years of experience in developing, constructing, and applying microsensors primarily in environmental research. We have in-house development and production, and a strong outreach in international collaborations.
Amager Resource Centre
Every day of the year we relieve the inhabitants and companies of the five capital municipalities Dragør, Frederiksberg, Hvidovre, Copenhagen and Tårnby of their waste and supply heat and electricity to their households in return. In total this amounts to 435,000 tons of waste which is converted into electricity and