Search

Archives: Realizacje

Water treatment stations play a crucial role in delivering clean and safe drinking water. They purify water drawn from deep wells, removing excess iron, manganese, and other contaminants while ensuring proper physicochemical parameters. The modernization process includes replacing outdated technology with more efficient and energy-saving systems, as well as implementing advanced automation solutions for precise water treatment management.

 

As Ecol-Unicon, we are responsible for the comprehensive reconstruction of water treatment stations in Grabowo and Użranki, including the construction of new facilities and modernization of existing infrastructure.

Acting as the General Contractor, we ensure that every aspect of the project – from construction to implementing modern systems – aligns with local conditions and guarantees long-term efficiency. The investment will enhance the overall efficiency of the water supply system, improve water quality and supply stability, and maintain optimal water pressure, benefiting local residents.

 

The total investment cost amounts to PLN 6.47 million. The municipality has secured funding of PLN 2.67 million (net) from the Rural Development Program for 2014-2020.

Scope of work

  • construction of new technological buildings for both water treatment stations
  • installation of retention tanks for treated water
  • installation of a complete water treatment system
  • installation of new power generators
  • modernization of existing deep wells
  • reconstruction of water and sewage networks
  • installation of a new station control system
  • installation of new electrical, control, and signaling cables

Water Treatment Station Capacity in Grabowo:

 

  • Average daily intake: 168.0 m³/d
  • Maximum hourly intake: 38.0 m³/h

Water Treatment Station Capacity in Grabowo in Użranki:

 

  • Average daily intake: 136.5 m³/d
  • Maximum hourly intake: 13.3 m³/h

Implemented solutions

The modernization includes implementing state-of-the-art, fully automated water treatment systems that enable continuous monitoring of water quality and process optimization. New retention tanks will increase water availability and improve network pressure, directly enhancing user comfort.

 

Thanks to our expertise in investment execution, the project incorporates solutions that enhance infrastructure reliability and optimize operational costs. Process automation will provide better water parameter control and improve the energy efficiency of the entire system. This investment marks a significant step toward improving the regional water supply infrastructure and raising water service standards.

Current project progress

January 2025

 

As of January, piling work, foundation construction, and water and sewage network reconstruction have been completed. We are currently focusing on assembling container buildings and retention tanks. In the coming months, we plan to install filters, technological and electrical systems, followed by testing and commissioning. The project is progressing according to schedule, with completion expected in May 2025.

 

Wojciech Tomaszewski, Project Manager

March 2025

 

We have completed the installation of the water treatment station equipment, including filter vessels and piping. Retention tanks for treated water are also in place – two tanks with a capacity of 105 m³ each in Grabowo, and one tank with a capacity of 125 m³ in Użranki. Currently, we are carrying out construction works on the process building and internal installations.

 

Wojciech Tomaszewski, Project Manager

Given the scale of the port’s operations and its vast area of 679 hectares, managing infrastructure requires a high level of organization and advanced technology. A crucial element of this system is the water and sewage infrastructure, which must operate efficiently to ensure the port’s smooth and uninterrupted operations.

To meet these demands, a consortium of Ecol-Unicon and Terlan has been executing a four-year contract since July 2024 for the operation, maintenance, and upkeep of the port’s water and sewage infrastructure.

Scope of work

The agreement covers operational management and the maintenance of the technical condition of the water and sewer networks, connections, installations, and equipment overseen by the Port of Gdańsk Authority S.A.

 

Key tasks include:

 

  • Ensuring continuous water supply and wastewater disposal
    Maintaining the seamless operation of the port’s water and sewage network, including the management of underground water intakes, water supply systems, ship water supply points, and stormwater and sanitary sewage systems.
  • Operation, maintenance, and repairs
    Conducting regular maintenance work and addressing failures in components such as wastewater treatment plants, pumping stations, and oil-substance separators.
  • Ship services
    Providing water supply to vessels and wastewater collection and treatment in compliance with the MARPOL 73/78 Convention.
  • Technical emergency response
    24/7 monitoring of infrastructure performance, rapid response to failures, and emergency intervention services.
  • Additional works
    Carrying out repairs and upgrades to the water and sewage infrastructure in line with the Port of Gdańsk Authority’s needs.

Results and impact

A well-functioning water and sewage infrastructure is crucial for the daily operations of the Port of Gdańsk, a modern logistics hub of strategic importance to the Baltic region. Keeping the system in optimal technical condition ensures smooth port operations and minimizes the risk of failures that could disrupt cargo handling and vessel services.

A comprehensive infrastructure management approach enables effective planning of maintenance and repair activities, ensuring the system’s long-term efficiency. Regular maintenance of key components such as wastewater treatment plants, separators, and retention systems also supports environmental sustainability efforts, reducing the port’s environmental impact and ensuring compliance with legal and ecological standards.

Why is proper water and sewage infrastructure management strategically important for the Port of Gdańsk?

Efficient management of the water and sewage infrastructure at the Port of Gdańsk is critical, as any failure or disruption can directly impact port operations.

 

Managing such a complex system requires a combination of advanced technical expertise and continuous supervision, allowing for swift responses to emerging needs and ensuring full functionality of the infrastructure. Through comprehensive maintenance and regular servicing, we minimize the risk of failures while supporting the port in meeting the highest environmental and operational standards.

 

Adam Spisak, Operations Manager

Scope of work

  • ongoing maintenance of water intakes, sewage pumping stations, and wastewater treatment plants
  • troubleshooting, inspections, and infrastructure maintenance
  • supply of drinking water and wastewater collection from both individual and institutional clients
  • technical consultancy on strategic investments in the water and sewage sector
  • signing contracts with service recipients
  • regular invoicing for provided services
  • operating a customer service point for municipality residents
  • issuing technical conditions and approving design documentation
  • water meter replacements

Implemented solutions

Thanks to a comprehensive approach to water and wastewater management, the municipal infrastructure is maintained in optimal technical condition. Regular inspections and maintenance services enable early detection and elimination of malfunctions, minimizing the risk of major failures and ensuring uninterrupted water supply for residents.

 

As part of our services, we have introduced process automation, monitoring systems, and remote failure notifications for key facilities, allowing for rapid response and optimization of the entire water and sewage network.

Access to key parameters of water intakes and the wastewater treatment plant from anywhere in the country enables performance analysis and adjustment of operating settings, leading to lower operating costs and more efficient use of human resources.

 

To further enhance system reliability, we have implemented a 24/7 emergency hotline, significantly reducing response times to failures and ensuring faster restoration of full network functionality. Additionally, bulk purchases of materials and consumable parts allow for immediate repairs, as most essential components are readily available. As a result, both repair times and operational costs have been reduced, contributing to greater stability in water supply and wastewater disposal.

The project is part of a broader initiative undertaken by the City of Łódź aimed at improving the management of stormwater and meltwater. The existing open tank at Liściasta Street no longer met the requirements regarding the volume of retained water or the quality of its treatment.

 

Effective stormwater treatment is essential due to runoff from the nearby residential area, which flows through the stormwater drainage system. Until now, partially treated water was discharged directly into the tank and the Sokołówka River, which runs through the area.

The installation of a new tank employing environmentally friendly technologies improves both retention efficiency and water treatment quality, benefitting the surrounding environment.

 

The total project cost amounted to PLN 5.1 million gross.

The project, titled “Nature Supported by Technology – A Retention Tank with a Hydrofit Pre-Treatment System at Liściasta Street in Łódź”, was implemented by Ecol-Unicon and received 1st Prize in the “Environmental Protection” category at the Smart City Poland Award 2024 competition.

 

 

 

Moreover, the project has been included on the map of good practices in Interreg Europe – a program co-funded by the European Union. Its aim is to facilitate the exchange of knowledge and experiences in sustainable and innovative solutions across Europe.

Scope of work

  • Design of the stormwater pre-treatment facility modernization
  • Demolition of existing pre-treatment structures
  • Construction of a retention tank with a total capacity of 900 m³
  • Construction of the hydrofit pre-treatment system
  • Installation of pre-treatment devices, including sedimentation tanks, separators, and tanks
  • Construction of process pipelines
  • Installation of control, automation, and water pre-treatment measurement systems
  • Construction of fencing, access roads, pedestrian pathways, and surface hardening for pre-treatment facility maintenance

How does the implemented solution work?

In the newly constructed facility in Łódź, we implemented the HYDROZONE BENEFIT retention tank, one of the most advanced solutions available. It enables not only water retention but also its reuse, achieved through pre-treatment devices and the operation of a hydrofit system with appropriately selected vegetation.

 

How does it work? The retention tank, with a total capacity of 900 m³, collects stormwater, which is pre-treated as it flows through a series of devices that remove suspended solids and floating contaminants. Hydrocarbon substances are eliminated using a lamella separator. Additionally, organic pollutants are filtered out in the hydrofit section, thanks to the planted vegetation and gravel layer. To keep the retained water fresh, aeration and flushing jets have been installed. These devices supply oxygen to the tank, preventing water stagnation and decomposition.

The retention tank installed by Ecol-Unicon is divided into three sections:

 

  1. Operational Section (0.5 m height, 150 m³ capacity) – The water collected here is reused for municipal purposes, such as street cleaning, channel flushing, green space irrigation, and sewer maintenance. Additionally, it supplies water to the hydrofit section during dry periods. In such cases, the water circulates in a closed loop, flowing through the filtration layer and back into the tank to ensure continuous plant irrigation.
  2. Working Section (1.5 m height, 450 m³ capacity) – This section retains incoming stormwater, which is subsequently pumped into the hydrofit system for treatment of organic pollutants.
  3. Emergency Section (1.0 m height, 300 m³ capacity) – This section provides overflow retention in case the working section reaches its capacity, for instance, during pump system failures.

Ecol-Unicon was also responsible for surface development around the pre-treatment facility. The area surrounding the tank and the Sokołówka River serves as a recreational space for the residents of Łódź, making the visual aspect of the project equally important.

 

The investment at Liściasta Street in Łódź demonstrates a comprehensive approach to stormwater retention. The project focuses not only on water storage but also on pre-treatment, enabling its reuse for municipal purposes and green space irrigation.

wideo play

Such technological solutions reflect the latest global trends, which, in the face of climate change, aim not only to retain water but also to reuse it for other purposes.

 

An implementation on this scale is truly innovative and paves the way for future projects. It can be successfully applied in urban areas dominated by concrete surfaces and other sealed city squares, offering a much-needed introduction of greenery to such spaces.

 

The use of a prefabricated tank significantly shortened the installation time, allowing the project to be completed within the planned schedule. The project was carried out in a city park with limited available space, which required careful intervention in the existing tree stand. We selected construction methods that minimized tree felling to the necessary minimum. The earthworks were conducted in the Sokołówka River valley, where the groundwater level was high. Here, the use of concrete and the weight of prefabricated components proved advantageous, counteracting buoyant forces and facilitating assembly onto the foundation slab.

 

Przemysław Dębski, Service Department Director, Ecol-Unicon

Zakres prac

Our client in this case was a company located in Lithuania, dealing with the distribution of various types of cereals. The project was implemented thanks to our representative in Lithuania, UAB Prespa.

 

This is our first project, delivery and installation carried out entirely by Ecol-Unicon outside Poland.

It represents a milestone in the development of the company’s activities on foreign markets, as we have already delivered not only the product itself, but the same range of services as on domestic territory, and the assembly itself took us only two days.

 

The tank measures 10m x 6m, with a capacity of 174.5 m3. Inside, it is divided into 2 parts by a wall that acts as an overflow baffle. Thanks to the baffle, the larger parts that enter the tank are retained in the first chamber, then the water overflows into the second chamber, from which it is pumped out through pumps located on the tank lid.

Applied solutions

High-efficiency coalescence separator ESK 20

 

  • Total capacity – 20 dm3/h
  • Total weight – 3100 kg
  • Weight of the heaviest element -2300 kg
  • Oil storage volume – 480 dm3
  • Diameter of inlet/outlet DN – 200 mm
  • Diameter – 1200 mm

Applied solutions

Settling tank EOS 2000 x 1:

 

  • Active volume – 5 m3
  • Total weight – 10750 kg
  • Sediment layer thickness – 80 cm
  • Diameter of inlet/outlet DN – 1000 mm
  • Diameter – 2000 mm

High-efficiency coalescence separator ESK-BH II 6/60/1200/250:

 

  • Total capacity – 15 dm3/s
  • Total weight – 3400 kg
  • Weight of the heaviest element -3300 kg
  • Oil storage volume – 220 dm3
  • Diameter of inlet/outlet DN – 250 mm
  • Diameter – 1200 mm

High-efficiency coalescence separator ESK 15:

 

  • Total capacity – 15 dm3/s
  • Total weight – 2900 kg
  • Weight of the heaviest element -2200 kg
  • Oil storage volume – 480 dm3
  • Diameter of inlet/outlet DN – 200 mm
  • Diameter – 1200 mm

Applied solutions

Further success in Lithuania. Together with strategic partner Prespa, Ecol-Unicon was honored to supply a brand new rainwater treatment line for Boar Crossing between Lithuania and Belarus. Construction works should be ended within the next few months but three sets of settling tanks and high-efficiency separators are ready to serve with good faith and fidelity to protecting the environment.

Settling tank EOS 2000 x 3

High-efficiency coalescence separator ESK 100 x 2:

 

  • Total capacity – 100 dm3/h
  • Total weight – 8200 kg
  • Weight of the heaviest element – 6300 kg
  • Oil storage volume – 1900 dm3
  • Diameter of inlet/outlet DN – 315 mm
  • Diameter – 2000 mm

High-efficiency coalescence separator ESK 80 x 1:

 

  • Total capacity – 80 dm3/h
  • Total weight – 8200 kg
  • Weight of the heaviest element – 6300 kg
  • Oil storage volume – 1900 dm3
  • Diameter of inlet/outlet DN – 315 mm
  • Diameter – 2000 mm

Neutralizer parameters

  • Total capacity – 400 m3/h
  • Gross weight – 3400 kg
  • Tank width – 2000 mm
  • Tank height – 1910 mm

The first such system in Poland

The ventilation, dust removal and deodorization system implemented for the Sorting Hall at the Solid Waste Utilization Plant in Tczew is the first such system in Poland, and probably even in Europe.

 

It all started with months of research conducted jointly with the Department of Toxicology of the Medical University of Gdańsk.

Air composition analyses were carried out in the Sorting Hall as well as on its roof, in a research model specially constructed for this purpose.

 

These studies, in addition to the precise determination of chemical compounds in the air, were designed to select the most effective active carbon mixture that would be used for the deodorization phase.

 

Signing of the Innovation Partnership agreement with town municipality of Tczew took place on April 7, 2017.

Assembly and tests

Wtedy właśnie rozpoczęła się druga faza projektu czyli montaż urządzeń. Koncepcja została przygotowana przez dr inż. Andrzeja Staniszewskiego. Zakładała montaż 3 niezależnych systemów, z których każdy składał się z systemu wentylacji, odpylania i dezodoryzacji.

Montaż zakończył się odbiorami oraz rozruchem urządzeń, który nastąpił 19 lipca. W tym samym dniu wykonano również badania tzw. zerowe wspólnie z GUMed. Cały projekt wszedł w ostatnią fazę, która skupi się na badaniach pozwalających na ostateczne dopasowanie mieszanki węgla aktywnego.

 

Ecol-Unicon, jako Generalny Wykonawca Inwestycji, do współpracy zaangażował partnerów: firmę SCROL, która realizowała montaż urządzeń oraz spółkę BIOPRO odpowiadającą  za realizację badań.

Technical description of the investment

The system consists of three independent systems and several stages of research and testing enabling individual adjustment of the system.

 

Technological solutions included in the ventilation, dust removal and deodorizing system:

  • Modernization of ventilation, carried out by the implementation of three independent systems, including a new system of channels ensuring at the same time effective collection and removal of dust and selected odorogenic substances, the total length of the channels is over 160m.
  • Dedusting devices – execution of 3 independent systems ensuring efficiency up to 60 000 m3/h.
  • Neutralization of odors and selected toxic substances – construction of three independent devices ensuring the removal of odors and toxic substances. After dedusting the polluted air from the hall, it is directed to the bed, where it is cleaned as it passes through a material that neutralizes odors and toxic substances. The flow of dust-free air is realized by blowers installed in the ventilation-dedusting-deodorization process line. The neutralizers are filled with two types of bed in a total amount of 36 m3