Demonstrate advanced wastewater treatment technologies (ozone, activated carbon) for the removal of active pharmaceutical compounds.
1. Pharmaceutical removal at full scale
Objective
- Evaluation and process optimization of a full-scale ozonation system at the wastewater treatment plant in Linköping
Activities
- Evaluation of a full-scale ozonation system and validation of the prior pilot study
- Demonstration and optimization of different control strategies for a stable and economic pharmaceutical removal
- Monitoring of relevant pharmaceuticals
- Perform various ecotoxicity tests to evaluate possible impactss of the by-products potentially formed in ozonation
- Close co-operation with the local water authority in order to evaluate the outcomes in respect of adequate risk reduction
- Exchange of information with operators of other full- or lage-scale ozonation systems
2. Flexible use of existing infrastructure
Objectives
- Flexible use of the existing infrastructure for better removal of pharmaceuticals in times of low additional treatment demands
Activities
- An expert group will help the operator of the wastewater treatment plant in Kalundborg to establish and optimize flexible use of the existing ozonation plant
- Improve the ozone dosing strategy as well as the operation of the moving bed biofilm reactors (MBBRs)
- Monitoring of pharmaceuticals and their ecotoxicity
- Frequent exchange of information with other operators and related water authorities
3. Comparison of post-treatment options
Objective
- Comparison of different post-treatment options
Activities
- Comparison of different biological ozonation post-treatment options, especially in respect of ecotoxicity but also the transformation products of relevant pharmaceuticals and water quality parameters
- Applied ozonation post-treatment options include full-scale MBBRs (Linköping and Kalundborg), pilot-scale filters (dual media, granular/biological activated carbon, Berlin) and pilot-scale constructed wetlands (Berlin)
- Optimization of a micro-sieve unit in order to extract the loaded powdered activated carbon from the water (Helsinki)
4. Optimization and control of advanced treatment
Objectives
- Provide a guideline for operators and water authorities based on current knowledge and best practical recommendations
- Optimization of full-scale ozonation process control and MBBR operation
Activities
- Application and evaluation of different process control strategies for ozonation systems with the goal of a stable and economic operation
- Frequent exchange of operators´ experiences on their individual progress to allow transnational knowledge transfer
- Systematic investigation of MBBRs in order to find optimal conditions for the further removal of pharmaceuticals and possible ozonation by-products
5. Output
General guideline for operators and water authorities on how to plan, start, operate and control advanced wastewater systems
WP3 leader: Ulf Miehe, Berlin Centre of Competence for Water (KWB)
Partners:
- Estonian Environmental Research Centre (EERC)
- Berlin Centre of Competence for Water (KWB)
- Aarhus University (AU)
- Kalundborg Utility
- Tekniska Verken Linköping AB (TVAB)
- Helsinki Region Environmental services Authority (HSY)
- Institute of Environmental Protection - National Research Institute (IOS)
- Latvian Institute of Aquatic Ecology (LIAE)
- Estonian Waterworks Association (EVEL)
- German Association for Water, Wastewater and Waste (DWA)
- German Environment Agency (UBA)