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IWAMA project will produce eleven main outputs. As the outputs are developed, this page will be updated with additional reference material and documentation. 


Lifelong learning and knowledge exchange

The Baltic Smart Water Hub is a multifunctional online portal aiming at connecting water experts in the region. The Hub provides most recent good practices, technical solutions and tools on a broad array of water-related issues such as wastewater treatment, storm water management, fresh water solutions, river-basin and lake areas management.

  • Tested training materials on smart energy and sludge management for improved energy efficiency and nutrient removal

Compiled towards the end of the project, this main output represents the joint effort of transnational learning activities, data collection, audit and piloting outcomes. Its core is comprised by the concepts for auditing energy efficiency and sludge management: these concepts are newly developed and for the first time applied in BSR, and they also take into account regional peculiarities. The training materials package consists of educational material for the target group(s) of wastewater treatment plant’s personnel. Its content is concentrated around the main themes of smart energy and sludge management, and takes into account factors supporting the development of lifelong learning, which have been identified as needs and practices of the wastewater treatment plants during project’s implementation.


Outputs targeted at smart energy management

  • Audit concept for smart energy management

The aim of developed and tested energy audit concept is to give operators an opportunity to perform self-auditing in their WWTPs, and therefore to enhance the energy efficiency of the treatment process in combination with extended nutrient removal level (energy-water-nexus) and detect measures for both short and long-term improvement of the treatment process (e.g. less energy consumption by changing parameters). The detailed content of the energy audit steps will be evolved in the process of performing the smart energy management audits at the IWAMA partner plants.

  • Pilot investment: Simple control system in Daugavpils wastewater treatment plant (LV)

Investment in Daugavpils foresee installation of nitrogen component control system allowing prompt and automatic adjustment of blowers work during nitrification process, leading to optimization of blowers’ operation. The process will be first tested, and according to the results, showcased how new nitrogen component control system influenced work and energy efficiency of WWTP. The implemented simple control system at Daugavpils WWTP will lead to stable nutrient reduction at decreased energy consumption.

  • Pilot investment: Energy optimized control of large wastewater treatment plant in Kaunas (LT) – read more

This investment is targeted at reaching energy efficient nutrient reduction. In the framework of the pilot, online nitrogen measurement devices were installed to monitor nitrogen concentration in the aeration tanks. Furthermore, the plant has installed mass airflow sensors to measure air flow to the aeration tanks, and an additional methanol dosing point in the denitrification zone of the aeration tank to advance nitrogen removal. The advanced process automatization and programming for energy optimization of the blowers was implemented to reach better energy-efficient management on the plant.

  • Pilot investment: Advanced control in Grevesmuhlen wastewater treatment plant (DE)

Investment in Grevesmühlen comprises decision making tool for optimized process operation and mass flow management regarding the complex system of sludge digestion, co-fermentation, thermal hydrolyses, process water treatment and nutrient elimination on a wastewater treatment plant. The investment will include the constructional and technical equipment of a new monitoring site, the realization of extended measurements and data collection, evaluation and statistical analysis and improvements on the overall process control and automation system. Improvements on the overall process control and automation system are essential to implement the new operational strategy.

  • Pilot investment: Combined anammox-constructed wetland pilot-plant in Gdansk wastewater treatment plant (PL) – read more

The pilot investment in Gdansk showcases an innovative high energy-efficient and cost-effective wastewater treatment concept. This investment included constructing the combined anammox-constructed wetland pilot plant and instaling additional energy meters at the WWTP.


Outputs targeted at smart sludge management

  • Audit concept for smart sludge management

The aim of developed and tested sludge audit concept is to give operators an opportunity to perform self-auditing in their WWTPs to enhance the sludge treatment process and find possible deficiencies (e.g. wrong operating parameters). The detailed content of the sludge audit steps will be evolved in the process of performing the smart sludge management audits at the IWAMA partner plants. High-quality audit concept, which considers technological and regional peculiarities, gives opportunity to perform sludge audits during the project and after the project closure.

  • Pilot investment: Sludge humification beds in Türi and Oisu wastewater treatment plants (EE)

In the frame of IWAMA project, a full-scale sludge humification beds in small WWTP`s will be designed, constructed and operated. In WWTP of Türi, the current asphalt field will be expand to perform a full-scale sludge humification. In Oisu WWTP, a new system will be installed and there will not be a further requirement for WAS transportation. Analyses of sludge hygienisation (pathogens), stabilisation, heavy metals and pharmaceuticals will be performed to demonstrate the effectiveness of the technology. The installations demonstrate that sludge stabilisation and hygienisation is achievable with reasonable price and is an example to other small WWTP in the Baltic Sea Region.

  • Pilot investment: Reject-water treatment system in Tartu wastewater treatment plant (EE)

The pilot concept for Tartu WWTP is to use deammonification reactor or reactors (nitritation and anammox) with aeration to treat reject water from sludge anaerobic treatment. The aim of the pilot is to use a relatively easy and non-patented solution for the start-up of reject water deammonification that could be duplicated in similar large-scale WWTPs with sludge stabilization via anaerobic treatment. In the frame of the IWAMA project, the start-up of the reject water deammonification will be performed in a full-scale pilot reactor. The demonstration of low-cost, inoculum-independent startup of the sludge water deammonification process in Tartu WWTP provides a good demonstration for integration and improvement of nitrogen removal in other bigger wastewater treatment plants.

  • Pilot investment: Energy-efficient sludge drying in Jurmala wastewater treatment plant (LV)

Installation of a novel combined solar- and biodrying pilot plant in Jurmala WWTP is an innovative approach in northern climate and needs prior piloting to collect valuable information about that technology. Therefore the investment will provide an insight about feasibility of sludge drying concept for medium-size WWTP ranges. If the technology is sustainable considering the process efficacy and operational costs, it would be extended to full-scale and would be applicable in other medium-size plants.