Initiative: "Construction of a hybrid hydrophytic wastewater treatment plant at the Poizdowo School Complex with an environmental trail".
Originator: Dr Krzysztof Jóźwiakowski
Location: Poizdów, School Complex
Implementation date: 07/2015-11/2016
Description of the problem encountered: One of the public facilities in the Kock municipality that will never be connected to the collective sewerage system is the John Paul II School Complex in Poizdów, from which wastewater is currently discharged into a non-drainage tank, resulting in the need for emptying and high operating costs.
Activities:
- creation of an innovative and highly efficient hybrid hydrophytic wastewater treatment plant at the public facility;
- creation of an environmental trail and the possibility to observe the treatment plant
Planned results: The construction of a local hybrid hydrophytic wastewater treatment plant together with an ecological path at this school will contribute to the elimination of septic tank operating costs and the improvement of the natural environment in the area. The treatment plant will provide long-term environmental protection and contribute to the improvement of groundwater purity.The nature trail will contribute to the improvement of the environmental knowledge and awareness of the school pupils and the inhabitants of Kock municipality.
Hybrid hydrophytic sewage treatment plant
The initiative 'Construction of a hybrid hydrophytic sewage treatment plant at the School Complex in Poizdowo together with an ecological trail' by Dr. Krzysztof Jóźwiakowski is being implemented as part of the project "Local ecological civic initiatives - together for the environment" by the Foundation for the Development of Polish Agriculture and financed by the National Fund for Environmental Protection and Water Management.
RESULTS OF PROJECT IMPLEMENTATION
As part of the project, a hybrid hydrophytic sewage treatment plant was constructed at the School Complex in Poizdowo, together with an ecological pathway.
The investment was carried out on the plot of land where there was previously a tank for collecting wastewater from the buildings of the Poizdovo School Complex. The scope of work first involved the preparation and adaptation of the site, involving the removal of all elements that could interfere with the wastewater treatment facilities envisaged in the project (bushes, hardened surfaces, etc.). Subsequently, the course of the sewer lines and the location of the various elements of the treatment plant were marked out on the plot in accordance with the development plan. The works associated with the construction of the hybrid hydrophytic sewage treatment plant included the adaptation of the existing tank to function as an equalization tank for the inflow and inflow from the School Complex building. The scope of key works for the project included the excavation and preparation of earthworks, followed by the construction or foundation and installation of individual elements of the wastewater treatment process line, including:
- the wastewater collection point,
- a grease separator by the school building,
- a three-chamber primary settling tank,
- pumping station with wastewater aeration system,
- a soil-plant bed with subsurface vertical flow of wastewater with a surface area of 70m2,
- soil-plant bed with subsurface horizontal wastewater flow of 70m2,
- P-filter to remove phosphorus from the wastewater,
- an infiltration pond for the discharge of treated wastewater into the ground,
- inspection chambers and external drains,
- a cable connection from the electrical system in the School Complex building, together with a control cabinet.
The final stage of the works included, among other things, tidying up and securing the area around the treatment plant facilities, in particular levelling and planting of slopes, humus planting and sowing with a grass mixture. In addition, planting was carried out on the soil and plant beds in accordance with the project - giant miscanthus on a bed with subsurface vertical wastewater flow and honeysuckle willow on a bed with subsurface horizontal wastewater flow.
In addition, the project included the construction of an environmental education trail next to the newly built wastewater treatment plant. The task included the construction of information boards at the most important elements of the treatment plant. In addition, a section of paved pavement was created to allow those interested in learning about the construction and operation of the plant to easily reach the individual elements.
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