Novelty value

 
With this project, another significant step is taken in the transformation of wastewater treatment plants to bioraffinades where valuable wastewater resources (in particular industrial waste water) are used optimally and / or recycled while refining the wastewater even better.
 
This is ensured through testing and documentation of new wastewater treatment processes in conjunction with energy systems, the catchment area and its consumers. 

 

Sewer system: 
- New IT technology is used in combination with mature pump and filter technologies to ensure the optimization of water drainage.
 
- In addition, known filter technology is brought into play for improved wastewater treatment and a new control system helps to divert industrial waste water more appropriately.
 
- There are new solutions to the problems with the formation of hydrogen sulphide and the formation and discharge of nitrous oxide. 
 
- In addition, diverting the water is coupled with the cleaning even more than it has been the case so far. 
 
- Finally, processes and decomposition of substances are monitored in the sewer system, and this monitoring is used for local control, control of the waste water plant and optimization of the utility company’s assets and operations.
 
 
Cleaning/waste water plant: 
- New process technology is demonstrated for better carbon utilization and new technologies for removing trace pollutants and microplastics in full-scale. This technology is a novelty in Denmark, and can help set guidelines for the future.
 
- The latest knowledge about in particular the Anammox process will tentatively be built into the control and construction design, and optimized through the project.
 
- New methods for measuring trace pollutants and microplastics will be used and prepared for "standardization".
 
- Through the cleansing processes which take place in lightweight, mobile and scalable constructions, more resource-efficient removal of organic matter and nitrogen will be demonstrated than we know today, among other things through "water design".
 
- The advanced control and the ability to design water composition in relation to process and available energy create a whole new basis for energy production and utilization.
 
- The process is optimized in full scale (approximately 5,000 PE), and an advanced control system is implemented. In this way, the dimension conditions for the processes are detected, and the control can be transferred directly to larger plants. An important element of optimization is the monitoring and minimization of nitrous oxide (laughing gas). The control for minimizing nitrous oxide is developed with basic elements from an ongoing 4-year LaGas project, supported by the Strategic Research Council (now the Innovation Foundation).
 
In addition to demonstrating the future process of cleaning waste water from industry and households, the design will also challenge normal construction practices. There will be light containers on terrain with 20 years' lifetime as opposed to normal technical plants with 50 to 80 years’ lifetime which risk being unusable for future cleaning needs before they are written off. By using light containers, the new plant becomes mobile, and in the future, it can be part of the successive closure of small wastewater treatment plants (that will remain as reserve / supplementary capacity in Assens and in many other Danish municipalities). The plant solution is designed for small plants of 5,000 PE with mixed wastewater that will handle N, P, C and trace pollutants but it can of course be scaled up.
 
IT solution: 
- A completely new (open source) level of data integration in wastewater management is established:
 
- All relevant data are collected on a real-time basis - also from previously unused / isolated data sources, which will interact
 
- The multiple available data make it possible to predict relevant processes, and monitor them. If applicable, the new IT solution will also control operations.
 
- The current situation and the system’s suggestions for optimizing are visualized in a single intuitive and easily accessible user interface (on a tablet).
 
 
 
 
 The figure above shows that data from the parties' closed systems access a common open Big Data Pool (BDP) via well-defined and well-documented interfaces. The BDP will also include relevant data from a wide range of third party IT solutions as well as public data sources. Both BDP and all involved interfaces are designed and released as open source to make the IT solution more accessible and attractive to future customers, collaborators and technology developers. Parts of BDP are also opened for research (sensitive data are not opened).