We boast another successful collaboration! Interzero implements Oklin composters in the City of Sopot

We boast another successful collaboration! Interzero implements Oklin composters in the City of Sopot
The City of Sopot can enjoy new compact and environmentally friendly equipment to process food waste at source. This is the result of fruitful cooperation with Interzero - we took care of the comprehensive service of local government facilities: from analysis of their needs, through selection of the best solutions and quoting, to implementation, installation and after-sales service. Let's take a look behind the scenes of a joint project between the City of Sopot and Interzero.
Successful implementation of Oklin composters - Sopot received 21 new units
In the Sopot collective catering establishments stood modern electric composters Oklin GG02, which convert catering waste into a valuable fertiliser - pre-compost. The implementation of the 21 units is result of the cooperation between Interzero and the City of Sopot, which has been applying innovations in waste management and actively working towards sustainable development and GOZ.
We have installed Oklin compact composters in 3 kindergartens, 5 schools, an orphanage and a nursing home. They enable Sopot establishments to process kitchen waste at source, reducing costs and time-consuming operations related to their segregation, storage and collection. The whole project is also part of in the development strategy of the city of Sopot, which aims, among other things, to ensure environmental security for residents by improving the quality of the waste management system and increasing separate collection.
From inspiration to implementation - the Environmental Conference as a prelude to fruitful cooperation
The impetus for action came from discussions with local government representatives held in connection with the organisation of the 2024 Environmental Conference and during the event itself, which was held under the honorary patronage of the Mayor of the City of Sopot. It was there Participants and invited guests could not only familiarize themselves with the Interzero eco-equipment range, but also to test them and discover the practical aspects of their operation. There, the decision was made - let's work together for a world without waste!
Preparation of an individual offer for the City of Sopot and the sales of Oklin GG02 composters were handled by Jarosław Dymek, Interzero Service Coordinator, who also oversaw the implementation and installation of the equipment in the Sopot facilities. Undoubtedly the success of the whole project has attracted the interest of the national media - You could hear about electric composters for example in the programme Czysta Polska on Polsat News and read in an article published by the website Green INTERIA.
Oklin electric composters in local government catering facilities
The subject of the collaboration with the City of Sopot was Oklin compact electric composters for smaller businesses, catering establishments and households. They take up little space and are simple to operate and maintain, while being very efficient. After a 2-week start-up period, each GG02 composter can process up to 4-5 kg of food waste per day.
From the perspective of the employees of the catering facilities in Sopot, an important benefit is the following no segregation of food waste - The Oklin GG02 composters process not only biowaste, but also meat, small bones, fish, eggshells, leftovers from meals (e.g. soups, sauces, stews, salads), dairy products and even biodegradable PLA/CPLA items and compostable disposable utensils.
„We can put all the leftovers from dinner in here. We don't have to throw them in the bin, we just recycle them. After a day, they make great compost.” - says Justyna Gazda from the Sopot DPS in the programme Czysta Polska on Polsat News.
The equipment is fully compliant with legislation and the HACCP system. The automated composting process takes an average of 24 hours - during which time the the volume of kitchen waste is reduced by up to 85-90%.
„From 5 kg of meal waste, about 300 g of good compost can be obtained in 24 hours.” - summarises the Deputy Mayor of Sopot, Michał Banacki, in an interview with Polsat News.
Cooperation between Interzero and the City of Sopot on the way to GOZ
Implementation of electric composters in facilities managed by the local authority has enabled Sopot to take the next step towards creating a local circular economy.
The Oklin GG02 devices installed in the Sopot facilities allow:
- processing of food waste on site,
- reducing the environmental footprint of food waste (no need for transport, sorting, composting, digestion or other management methods),
- reducing the weight of landfilled waste,
- the rapid conversion of waste into a valuable product that can be used as a natural fertiliser.
„We have a huge recreational area here, a garden and a patio, so we have somewhere to dump it all,” says Ilona Gajewska, deputy director of the Social Care Home in Sopot, which received two Oklin GG02 composters.
The use of the recycled waste product has enabled Sopot's facilities to create their own closed-loop circuits and opened the way for the local government to reduce waste management costs and move closer to meeting recycling and landfill targets.
„Less waste goes to landfill, which means that there is also a reduction in the cost of waste disposal”. - admits vice-president Michal Banacki.
A number of tangible benefits from the implementation of our Oklin GG02 composters led the City of Sopot to also encourage its residents to invest in similar equipment. Individuals and entrepreneurs can count on a grant for the purchase of such a composter, which is paid from the municipal budget. In addition, they receive a reduction in the waste collection fees payable to all property owners who have a composter (traditional or electric).
For the time being, however, only those with single-family houses will benefit. As Anna Wołodźko, director of the municipal economy department at the municipal office in Gdańsk, emphasised in her statement for Polsat News, it may not be long before the residents of multi-family houses will also benefit in a similar way:
„There is an amendment to the law in play, which includes the possibility of composting in multi-dwelling developments.”
How does the Oklin GG02 electric composter work?
Oklin GG02 is an electric composter that, in a short time breaks down food residues placed in it into steam, carbon dioxide and pre-compost. The long-lived Acidulo™ micro-organisms, which are resistant to the salt and acids found in food products and to the heat generated during composting, are responsible for processing food waste. The entire process takes place under aerobic conditions - The unit draws in the air through an inlet port, uses the oxygen it contains and then purifies it in a deodorising system. Thanks to this the air coming out of the outlet is free of unpleasant odours.
Before the first cycle, it is necessary to activate the Acidulo™ micro-organisms contained in the package included with the unit. Once they have been thoroughly mixed with water, the Oklin GG02 is ready to go. To start composting, pour the kitchen waste into the hopper and close the lid tightly. Further stages of the process are automatic - the unit sets the blades in motion to slowly mix the food scraps with the sawdust containing Acidulo™ micro-organisms. Continuous mixing allows the load to heat evenly and speeds up the composting process. Approximately 24 hours after loading, the food waste is transformed into raw pre-compost - a light, dry fertiliser with a slightly acidic smell and a consistency similar to fine sawdust or dried coffee grounds. It can be used in horticulture when mixed with soil or leaves at a ratio of 1 part pre-compost to 10 parts soil or leaves.
The Oklin GG02 electric composter is designed for use indoors or under a canopy. A 230V electrical outlet is necessary for the installation of the unit. The outlet hose discharging the air with steam must be connected to a sewer drain (behind the trap), to a ventilation system or led outside the room. The unit operates continuously - once composting is complete, it automatically enters energy-saving mode to reduce power consumption and to keep it ready to process further batches of food waste.
Contact
35 years of Interzero: a story that shows that the circular economy makes sense

35 years of Interzero: a story that shows that the circular economy makes sense
Not every company can say that it has consistently changed the way entire industries think for 35 years. Interzero is one of those exceptions. The jubilee is not just a symbolic anniversary, but an opportunity to tell the story of courage, vision and innovation that was ahead of its time - and today sets the course for a sustainable economy in Europe.
From regulation to innovation - how it all began
Interzero's origins go back to the early 1990s, when the topic of producer responsibility for packaging waste was just beginning to break through in the minds of companies. Even then, the organisation focused on systemic solutions: creating effective collection, sorting and recycling mechanisms that realistically close the cycle of raw materials. What was initially a response to regulation soon became the impetus for building a new business model - one based on the circular economy.
Today, the vision of a world without waste is not a marketing slogan for Interzero, but the foundation of its operations. The company has been proving for years that resource conservation and economic success can go hand in hand. Closed material cycles, intelligent collection systems, advanced sorting technologies or high-quality recyclates are the results of a consistent combination of operational knowledge and innovation.
Importantly, Interzero does not operate in isolation from market realities. It supports B2B clients across Europe, designing solutions tailored to specific industries and challenges - from environmental obligations to material efficiency to ESG reporting.
Services that have evolved with the market
Over the course of 35 years, Interzero's portfolio has developed significantly. In addition to the classic recycling solutions, there have been, among others:
- comprehensive waste management services for businesses,
- environmental and strategic consultancy in the area of sustainable development,
- reverse logistics and product close-out systems,
- digital tools to support the management of environmental data, waste management and carbon footprint,
- advanced sorting facilities and production of certified secondary raw materials.
This proves that Interzero is not only responsive to change, but often ahead of it - co-creating market standards.
We take care of packaging compliance with EU-wide EPR, all in one place and always up to date.
We offer modern eco-equipment, which support companies in efficient and sustainable waste management.
We support companies in preparing for the requirements of PPWR.
Looking to the future
The 35th anniversary is a moment of reflection, but also a clear signal: this is only the beginning. There are further challenges ahead for Interzero - industry transformation, increasing regulatory requirements, pressure to reduce emissions and real reductions in resource consumption. The answer remains what has been the company's DNA from the beginning: innovation, boldness in thinking and consistency in action.
Interzero's anniversary is a reminder that change is possible - if you have the vision and determination to make it happen. And an economy without waste? Thanks to companies like this, it stops being an idea and becomes a standard.
Mixed waste a clue for ROP? Introducing the „black bag” analysis report”

News
Nearly half of all municipal waste disposed of in the „black bag” should not end up in it at all, according to an analysis we conducted in cooperation with the Częstochowa University of Technology as part of the UNEP/GRID-Warsaw Climate Leadership programme. The study covered mixed municipal waste from various Polish installations. The aim was to qualitatively analyse the residual fraction and, based on this, identify product groups that could be included in the ROP system.
Field surveys at MBP facilities best source of waste stream data
Extended producer responsibility and how to implement it in Polish conditions are currently among the most popular topics of discussion in the environmental industry. While producer representatives and recycling and waste management experts debated the most favourable shape of the ROP system in Poland, we we rolled up our sleeves and examined the direction in which the national ROP model could develop.
The latest report prepared by the scientific community in cooperation with Interzero provides only hard data - not from declarations or anonymous surveys, but... from real bags of waste collected from residents. Thorough manual analysis of the so-called „black bag”, i.e. mixed municipal waste, The survey allowed us to check what actually ends up in the residual fraction. We conducted it on samples of waste from urban and urban-rural areas, delivered to five installations during the spring and summer:
- Częstochowa Municipal Corporation Ltd. (CzPK),
- Orli Staw Municipal Waste Disposal Plant,
- Municipal Utilities Company in Katowice,
- Przedsiębiorstwo Gospodarki Komunalnej Sp. z o.o. in Radomsko,
- MASTER - Waste and Energy Sp. z o.o. in Tychy.
At each installation, we conducted the survey twice, at different times of waste import. Taken from the plate of the sorting plant waste samples were manually sorted, separated into material fractions and then weighed. Each time, the research team paid particular attention to items of a specific nature, regardless of whether their presence in the „black bag” was in accordance with the principles of selective waste collection (JSSO).
Expectations versus reality - what are we really throwing into the black bag?
The „black bag” analysis report reveals what many people would rather not admit - the quality of separate municipal waste collection still leaves much to be desired. After adding up the data collected in the course of the survey, it turned out that as much as 42% by weight of mixed waste are the raw material fractions, of which:
- plastics - 20%,
- paper - 6%,
- bio-waste - 5%,
- glass - 4%,
- aluminium - 2%.
Due to the large amount of unidentified waste contaminated with wet fraction, the actual share of plastics in the mixed waste stream may be even higher.
The remainder of the sample analysed was:
- Wet fraction (biowaste and unidentified mixed waste) - 46%,
- hygiene waste (e.g. nappies) - 5%,
- Textiles - 5%,
- building and renovation materials - 4%,
- wood - 1%,
- highlighted items - 2%,
- packaged food scraps, medical waste, toys, hairdressing mix - less than 1% for each fraction.
The exact material composition of each sample tested can be found in the test report.
Subscribe to the newsletter to download the report!
Remember that you can unsubscribe at any time.
Thank you!
Confirm your subscription by clicking on the button from the email.
Effective ROP needed now
On the basis of an analysis of the data obtained, together with experts from the Częstochowa University of Technology and UNEP/GRID-Warsaw, we have identified several product categories which should be covered by the extended producer liability scheme in Poland:
- disposable hygiene products (nappies, sanitary towels, tampons, sanitary pads and other disposable beauty/spa products) as a group of waste with low recycling potential and high management costs,
- children's toys and accessories (including sports, beach and vehicle accessories) as products for which no end-of-life management is foreseen,
- disposable medical products (gloves, masks, syringes, needles, other medical devices),
- products generating dust and ash (e.g. solid fuels),
- clothing and textiles.

In developing the recommendations, we drew on the experience of other EU countries that have long had extensive ROP systems in place. Of particular importance was the analysis of the French EPR system including, among others, clothing and home textiles, toys, sports and leisure items and disposable hygiene products.
The study of the morphology of „black bag” waste also provided an opportunity to verify the effectiveness of the Polish ROP system, in which producers failing to achieve minimum recycling or recovery levels are obliged to pay a product fee. After analysing the data, we formulated a list of products for which it would be advisable to revise the regulations and fee rates. It featured:
- used tyres,
- small-scale electro-waste (mainly electronic toys, light bulbs and small electrical and electronic equipment),
- packaging for oils, paints and chemicals,
- multi-material packaging and difficult to recycle (e.g. multilayer films, sachets).
According to Przemysław Kuna, Team Leader in the Waste Management Competence Center Interzero team, who took part in the fieldwork:
In the course of the research work and the analysis of the results of the report, it became evident that for the individual fractions, the implementation or strengthening of Extended Producer Responsibility (EPR) funding should be considered accordingly. Mixed waste is a source of materials that can still be recycled and used, the ROP needs to support these activities on many levels, not only financial and organisational, but also educational and communication.

Orientations for further regulatory and operational activities
The results of the survey indicate that the scale of the problem requires action beyond separate collection alone waste. Due to the high share of plastics (including packaging) in the mixed waste stream, we recommend that the planned ROP system for packaging should include funding for the separate collection and the cleaning of this fraction. A necessary element of such a ROP should be ecomodulation of charges rewarding packaging that is easy to empty and clearly labelled.
It is also necessary to development and implementation of a strategy to reduce the proportion of „wet fraction” in the municipal waste stream. The strategy would include both communication and education aspects, as well as presupposing a review of the scope and effectiveness of existing measures under the anti-waste legislation.
Parallel to system changes, care should be taken to educate the public on the principles of sorting all fractions of municipal waste. This is because the report has brought to light a number of undesirable practices that lead to losses of raw materials and increase waste management costs. The samples analysed revealed, among other things:
- large quantities of green waste,
- food packed in plastic bags,
- out-of-date packaged food,
- products packed repeatedly in thin plastic bags,
- construction waste, medical waste, hazardous waste (including packaging of hazardous substances) and textiles.
It is therefore necessary to continue carrying out environmental education activitiesof which raising awareness on proper waste management and information on the availability of alternative reusable products.
The observations, recommendations and conclusions contained in the report will form the basis for further educational, regulatory and strategic activities by Interzero and UNEP/GRID-Warsaw.
Merry Christmas from Interzero

On the occasion of Christmas and the upcoming New Year, we would like to wish you warm wishes.
May this festive season bring you peace, rest and joy with your loved ones. We also wish you health, prosperity and success in the coming year, both in your professional and private lives.
Merry Christmas and a happy New Year!
Best wishes from the Interzero Group in Poland
We are very proud to announce that our company has joined the group of winners of the prestigious „Investor in Human Capital” certificate!

News
For us, the certificate is confirmation that, as an organisation we are moving in the right direction - we are creating a workplace that focuses on people, their potential and opportunities for development. It is also a signal to candidates that we are the right employer for talent: ambitious people who want to grow with us, pursue their professional passions and have a real impact on the company's development.
Many thanks to all Employees for taking part in the survey and the impressive turnout - 83%!
Your voices are the most valuable guidance for us. Thanks to your openness, we can design activities that respond to real needs and support the creation of an open and inspiring working environment.
This accolade is not only something to be proud of - it is also a commitment. Further challenges ahead, because we want to consistently develop the initiatives we have started and strengthen our organisational culture.
Thank you for your trust, energy and daily commitment.

Thanks to you, we can proudly wear the title of „Investor in Human Capital” - and together build a company that attracts talent, inspires and gives space for development.
Interzero management in Poland
Interzero offices are closed on 10 November 2025.

Information about the day off
On 10 November 2025, by decision of the Board of Directors, the Interzero offices will be closed.
We apologise for any inconvenience.
Interzero webinar: "Packaging classification - what really is packaging under the law?".
- Date: 20.11.2025.
- Form: online
- Participation: free of charge (registration required)ð
Scope:
During the meeting, our expert Paweł Sosnowski, Board Representative for Environmental Regulation, will discuss:
- Definitions of packaging under the current Polish Packaging and Packaging Waste Management Act.
- Definitions of packaging and the provisions of the PPWR.
- Examples of products that meet or do not meet the definition of packaging.
- Multi-material packaging. Standard EN 13429:2004 "Packaging - Multiple use".
- Multi-material packaging versus composite packaging - the current definition and the definition established by the PPWR.
Packaging classification and PPWR
Regulation PPWR is a key element of the EU's strategy for a circular economy. It introduces uniform rules for all Member States on the design, labelling, reuse and recycling of packaging. For companies, this means that they need to re-examine which products actually meet the definition of packaging and what obligations result from this.
During the webinar, we will show how to prepare for these changes and how to interpret the new regulations in practice to avoid errors in classification and reporting.
Interzero with the Golden Innovation! Our Waste Platform is revolutionising the industry

News
Our solution addresses the real challenges facing businesses today - from complex legal obligations to the need to realistically support the goals of the Closed-loop Economy (GOZ).
The genesis of innovation: Responding to a market gap
The impetus for the platform was the rapidly increasing complexity of legal obligations that have fallen on businesses - including those related to the Waste Data Base (BDO) system and Waste Transfer Cards (KPOs).
As he explains Aleksandra Mikiel, Head of Digital Solutions and Transformation at Interzero:
"In the retail sector, in retail chains or in manufacturing plants, where we have to deal with many branches, this complexity becomes a real operational brake and a significant administrative cost. (...) The market was lacking such a comprehensive system. The Interzero Waste Platform is our answer to this gap - a tool that ensures compliance, maximum efficiency and allows companies to focus on what they do best: their business."
Key features that change the rules of the game
The Interzero platform goes beyond the role of a passive inventory system. It is an active, integrated tool that combines logistics, record-keeping and advanced reporting.

What makes our solution different?
- Full, proprietary integration with BDO: This is not just a superficial exchange of data. We are talking about the automatic generation and correction of KPOs and the automatic downloading of data to Waste Inventory Cards (KEOs).
- 'Game-changer' for managers: An absolute novelty is the possibility of changing KPO statuses (e.g. transport confirmation) directly from the platform, without having to log into the BDO system.
- Deep automation of logistics: The platform allows remote ordering of pickups 24/7, and can also create a pickup request itself when a container fill sensor sends a push notification - without human intervention.
Centralisation and mobility: The tool becomes a digital repository for all environmental documentation. Full access is possible from any device, and the new app Interzero OneApp brings key functions (such as overflow reporting or calendar view) right into the user's pocket
Measurable impact: Efficiency and Sustainability
The impact of the Waste Platform on business is immediate and measurable.
- Operational efficiency: Our customers report saving hundreds of hours per monthThe audit process is now more efficient than the manual handling of KPOs and records. Full automation drastically reduces human error and simplifies audit processes, which is crucial in multi-branch companies.
- Sustainability (ESG and GOZ): The platform is a powerful tool to support sustainability. It gives full transparency and much better control over waste streams. This directly translates into:
- Increasing recycling rates.
- Increase revenue from raw material sales through intelligent recommendations.
- A solid foundation for robust ESG reporting.
- Measurable environmental impact: The elimination of tonnes of paper documentation and the reduction of CO2 emissions through intelligent optimisation of logistics.
The future: AI analytics and further development
For us, the Golden Innovation Award is confirmation of the right direction, but we are not stopping.
"The waste management industry is in a permanent digital transformation and we want to not only keep up with it, but be at the forefront of it." - emphasises Aleksandra Mikiel.
We are investing heavily in the development of the Interzero OneApp mobile app and in advanced data analytics and AI mechanisms. Our goal is that in the near future the platform will be able to intelligently predict and recommend optimal actions, e.g. suggesting the best time to collect a container.
On behalf of Interzero, the award was received by: Aleksandra Mikiel - Head of Digital Solutions and Transformation and Agata Ryś - Member of the Management Board of Interzero. Interzero would also like to thank all the staff involved in the project - in particular Aleksandra Mikiel and Monika Szychulska, Digital Solutions Project Manager, for her work in creating and continuously developing the Platform system.
This award is a strong motivator for us to continue developing innovative solutions in the spirit of sustainability. We encourage you to visit the platform's website and find out more - click here and find out how your company can benefit.
Are you interested in using the Waste Platform for your company? Get in touch with us! Write to us at platformaodpadowa@interzero.pl and test our tool.

Interzero implements strategic educational project on GOZ for the Mazowieckie Voivodeship Government

News
Initiative Mazovian Voivodeship Self-Government, aims to improve the competence of educational staff in the field of the Closed-loop Economy (CEE).
The project responds to the growing importance of environmental education and is part of our mission to build a sustainable future through the implementation of systemic solutions.
Main project objectives and activities
The overarching goal is to professionally prepare teachers for educational activities and to equip the management of the establishments with knowledge about the possibilities of implementing circular projects. As part of the contract, Interzero is responsible for the comprehensive preparation and implementation of the following activities:
- Development of professional educational materials: We will create sets of digital materials, including lesson plans for all educational stages and packs of worksheets and exercises. All materials will be prepared to the highest content standards and digital accessibility principles. The materials will be available on our project website: https://ekopaka.org/edukacja-ekocyrkularnych/
- Delivery of specialised online training: We will conduct two separate online training series aimed at different audiences: principals and teachers.

We invite you to participate in free training
As part of the 'Education of the Ecocircular' project, we are launching enrolment for the following activities. Interzero is responsible for obtaining participants.
- Training for Teachers
5 online trainings (each lasting a minimum of 90 minutes) dedicated to teachers of schools and kindergartens from the Mazovian Voivodeship, aimed at preparing them to teach GOZ.
- Executive Training
4 online training courses (each lasting a minimum of 90 minutes) for principals and deputy principals, focusing on the practical aspects of implementing circular projects in educational establishments.
The partnership with the Mazovian Voivodeship Government is an important distinction for us and confirms our confidence in Interzero's competence and experience in the field of environmental education.
EcoExperimentarium in Warsaw - discover how small changes can make a world of difference

News
It is an interactive space where, through play and experience, the youngest children (from the age of 5) learn how to take care of the environment in a simple way. The exhibition shows that environmentalism is not about sacrifices, but about everyday, clever choices that each of us can implement in our own homes.
What awaits visitors
In the EcoExperimentarium, visitors move into a model flat:
- in the living room catch 'energy vampires' who devour electricity,
- in the bathroom discover how to save up to 700 litres of water a week,
- in the kitchen, they learn how to segregate waste properly,
- In the bedroom, they reflect on why it makes sense to have less stuff.
It's a place where fun meets learning, and where children and adults can feel that their everyday decisions really do matter.
Interzero again as patron of the exhibition
Interzero has once again become a partner of the EcoExperimentarium.
As Katarzyna Kacz, Project Manager CSR and Environmental Education, points out:
"For years, we have been supporting the EcoExperimentarium exhibition, which shows children how to take care of the environment every day in an engaging way. In the kitchen, of which we are a partner, we teach that waste does not magically disappear from the cupboard under the sink - its proper segregation has a real impact on our world."
Through such partnerships, the EcoExperimentarium inspires the next generation to live consciously in the spirit of zero waste and sustainability.
When and where
Place: Centre for Ecological Education, 3a/3 Papyrus Street, Warsaw
Deadline: 16 October - 28 November 2025.
Admission: free
Visiting hours: Monday - Friday: 9:00, 11:00, 13:00 - organised groups
Advance registration is required - places are limited.
The EcoExperimentarium has already been visited by more than 60,000 people in 17 Polish cities, including Łódź, Wrocław, Krakow and Poznań. This proves that environmental education through play really works.
Come, experience, see how you can be eco - and be inspired to take action in your home.
You are cordially invited!







