Fifty years ago, on 10 July 1976, the explosion of reactor A101 at the ICMESA plant in Meda (Milan) released 2,3,7,8-TCDD, known as “Seveso dioxin”, into the environment. It was the world’s most severe case of contamination by this substance and marked a definitive turning point in the global perception of environmental risk, contributing to the first European Directives on PCBs (polychlorinated biphenyls) issued that same year — a substance now classified among the POPs (Persistent Organic Pollutants) under the 2001 Stockholm Convention.

Sea Marconi’s role in the technological response

In December 1982, Senator Luigi Noè, head of the Special Office for Seveso of the Lombardy Region, invited Sea Marconi to propose a solution for detoxifying the dioxin. The company, founded in Collegno in 1968 by Vander Tumiatti, took up the challenge: in 1983, working with the European Joint Research Centre in Ispra (Prof. Sergio Facchetti) and the University of Turin (Prof. Pietro Tundo), Sea Marconi became the first in the world to experimentally validate, both in the laboratory and in the field, the dehalogenation and detoxification of Seveso dioxin through CDP Process®, patented the year before.

From dioxin to PCBs in transformers

Seveso dioxin and PCBs belong to the same family of pollutants: both are POPs under the Stockholm Convention, sharing toxicity and environmental persistence. CDP Process®, validated on the most extreme case ever recorded, is the same technology Sea Marconi uses today to treat PCBs in the insulating fluids of electrical transformers, in service even under load, with no need to empty the equipment. Classified by Italy’s Ministry of Environment as Best Available Technique in 2007, CDP Process® is now recognized as BAT/BEP in UNIDO-GEF projects supporting the objectives of the Stockholm Convention, and applied in over 50 countries.

The study day

Fifty years after that event, Sea Marconi and the University of Turin are jointly promoting an interdisciplinary study day to revisit this history and examine, with contributions from experts in chemistry, law, linguistics and artificial intelligence, the path that led from the dioxin crisis to today’s global technological responses.

? Thursday 9 July 2026, 8:30 AM
? Aula Magna of the Rectorate, University of Turin, via Verdi 8

Speakers include Vander Tumiatti and Silvia Cerlesi, presenting on CHEM & AI and on CDP Process applied to Seveso dioxin.

How to attend
The event is open for in-person attendance. A webinar broadcast (up to 1,000 attendees, view-only) is also available at the following link:
https://unito.webex.com/unito/j.php?MTID=mb16ff38098f4a38c5adba04177d79a76

> Download the event flyer

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Estas atividades são rotineiras para a SEA Marconi, que realiza diariamente, de forma simultânea, entre 20 e 25 tratamentos em transformadores em diferentes regiões do mundo. Neste caso específico, a intervenção foi realizada com sucesso apesar de condições ambientais particularmente severas, como mostra o vídeo publicado pelo nosso parceiro Energotech no LinkedIn, com temperaturas até –16 °C, neve intensa, gelo e acesso em subida coberto de neve.

A desalogenação é o tratamento que permite reduzir e remover o teor de PCB dos fluidos isolantes até aos valores prescritos pelas normas internacionais. A atividade, com duração de 7 dias, envolveu um transformador de 16 MVA – 110 kV com 12.560 kg de óleo isolante.

O tratamento, executado através de unidades móveis e modulares projetadas e construídas pela SEA Marconi, permitiu reduzir a contaminação por PCB para valores inferiores a 50 mg/kg, sem substituição da carga de óleo e sem geração de resíduos contaminados, garantindo continuidade operacional e conformidade regulamentar.

Com mais de 50 anos de experiência internacional, a SEA Marconi confirma a sua liderança na gestão do problema PCB, aplicando a melhor técnica disponível e a melhor prática ambiental para proteger a segurança, os ativos e o ambiente.

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O My Transfo 2025 foi realizado no SERMIG – Arsenale della Pace de Turim, um local simbólico nascido da transformação de um antigo arsenal militar num espaço de paz, solidariedade e inovação.
Um cenário perfeito para um evento que celebra o conhecimento como a verdadeira energia da transformação.

Com 190 participantes, 96 empresas e 25 países representados, esta foi a edição mais bem-sucedida de sempre.
Mas, mais do que os números, o que realmente definiu o My Transfo 2025 foi o seu valor humano: a curiosidade, a generosidade e a vontade de partilhar daqueles que colocaram a sua experiência ao serviço dos outros.

Organizado pela Sea Marconi – Sustainable solutions for oil-filled transformers, o My Transfo é há mais de vinte anos o ponto de encontro entre ciência, indústria e inovação no mundo dos transformadores e dos líquidos isolantes.
Aqui, o conhecimento é partilhado, as experiências são trocadas e as ideias ganham forma através da colaboração.

A edição de 2025 também marcou um passo importante em termos de inclusão, com a maior participação de mulheres e jovens com menos de 30 anos já registada na história do evento.
Isto reflete uma comunidade aberta, colaborativa e intergeracional, onde a partilha do saber se torna um gesto humano antes de ser técnico.

O lema desta edição, “Power of Knowledge, Energy of Transformation”, resume perfeitamente o espírito do My Transfo: o conhecimento como força que une, inova e impulsiona a mudança.

“O My Transfo não é apenas uma conferência, é uma comunidade viva. Mostra que partilhar conhecimento é gerar valor.”
— Vander Tumiatti, Fundador da Sea Marconi

Assista ao vídeo oficial de 2 minutos e reviva a energia e as pessoas que tornaram esta edição única.

Descubra também a galeria oficial de fotos viva os melhores momentos.

A jornada continua com o My Transfo On the Road 2026 (Lyon em maio e Espanha em outubro) e culminará com o My Transfo 2027.

Um sincero agradecimento a todos os participantes, palestrantes, patrocinadores e à equipa da Sea Marconi por tornarem possível esta edição extraordinária — uma demonstração concreta de que o valor humano e o conhecimento partilhado são, hoje mais do que nunca, a verdadeira energia da transformação.

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Essa clarificação, que veio em resposta a uma consulta oficial da Confindustria, valida a interpretação que a Sea Marconi já vinha defendendo em suas análises técnicas e regulatórias: este é o prazo final e não prorrogável.

Resumidamente, qualquer equipamento ainda em operação com fluidos contaminados acima do limite deve ser identificado, classificado e gerenciado em conformidade com a regulamentação europeia (Regulamento UE 2019/1021). Embora algumas normas nacionais anteriores parecessem indicar condições mais flexíveis, agora está claro: o prazo de 31 de dezembro de 2025 é o que prevalece.

O papel da Sea Marconi: um aliado técnico e operacional

Por mais de 40 anos, a Sea Marconi tem estado na vanguarda da luta contra os PCBs, oferecendo soluções concretas, sustentáveis e reconhecidas internacionalmente. Oferecemos um serviço completo:

• Análises certificadas do teor de PCB em fluidos isolantes.
• Classificação técnica dos equipamentos com base nos limites regulamentares.
• Tratamentos de desalogenação (CDP Process®) que reduzem os níveis de PCB para abaixo dos limites legais, sem a necessidade de remover o transformador ou substituir o óleo contaminado.
• Suporte regulatório e de gestão para preparar toda a documentação necessária.
• Experiência em escala global, em colaboração com empresas de serviços públicos, governos e agências internacionais.

Sea Marconi, um parceiro confiável e independente

Se você possui equipamentos elétricos potencialmente contaminados com PCB, este é o momento certo para agir.

Entre em contato conosco: nós o ajudaremos a entender o estado real de suas instalações, a escolher a estratégia mais adequada e a lidar com o prazo de 2025 com tranquilidade.

Vamos conversar. É uma questão de segurança, meio ambiente e responsabilidade.

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No dia 27 de maio de 2025, realizou-se em Milão, na sede do CEI – Comitê Eletrotécnico Italiano, o seminário técnico:
“Líquidos dielétricos para transformadores: do óleo mineral, passando pelos PCBs, até os ésteres”.

A Sea Marconi participou como patrocinadora e com duas apresentações que abordaram o passado e o futuro da gestão de ativos e riscos em transformadores.

A primeira apresentação, de Vander Tumiatti, tratou da história e da gestão sustentável dos PCBs, com foco no prazo regulatório de 31 de dezembro de 2025, que exige a retirada de equipamentos com mais de 50 mg/kg de PCB.

A segunda apresentação, feita por Giuseppe Pecoraro, destacou a importância do fingerprinting como técnica avançada para identificar com precisão os fluidos isolantes e as respectivas patologias, como a corrosividade.

Apesar de apresentar temas relevantes, o evento do CEI não proporcionou momentos de aprofundamento técnico nem de interação direta com os participantes.

Por isso, a Sea Marconi reafirma o valor do diálogo técnico e da formação profissional através do My Transfo 2025, que acontecerá em Turim, nos dias 14 e 15 de outubro.

O evento, promovido pela Sea Marconi, oferecerá sessões formativas personalizadas para aprofundar os temas mais relevantes sobre transformadores, fluidos isolantes, manutenção, diagnóstico e sustentabilidade.

Dois dias de conteúdo técnico avançado, estudos de caso reais, troca com especialistas internacionais e oportunidades concretas de networking técnico.

Veja a programação e inscreva-se em www.mytransfo.com

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The first “episode” of this important milestone dates back to May 2020 with the publication of the call for tenders by The Egyptian Environmental Affairs Agency (EEAA) through the agency for the sustainable management of persistent organic contaminants (POPs) in response to the obligations of the Stockholm Convention.

www.popsegypt.com

The tender, financed by the World Bank / GEF, was entitled: Decontamination of PCB-Containing transformer oil – Supply and installation of equipment, and training of local operators, for dechlorinating and purification of 1000 tons of PCB contaminated oil, which will produce clean oil suitable for reuse in electrical equipment (transformers).

Main milestones:

• July 2020, Sea Marconi responds to the tender
• November 2020, Sea Marconi receives the official award following the opening of the envelopes and the analysis of the proposals
• June 2021, shipment of materials and accessories from the Sea Marconi headquarters in Collegno, Turin (Italy) to the port of Alexandria in Egypt
• July 2021, shipment of the decontamination plants from the Sea Marconi headquarters in Collegno, Turin (Italy) to the port of Alexandria in Egypt

At the moment the lifts are sailing towards Alessandria with expected arrival on Monday 9th; the next steps, presumably in October 2021, are commissioning, the on-site demonstration of the technological capacity of the plants with the training of local operators aimed at autonomous use.

In this case, Sea Marconi has created and deployed a winning technology: BAT and BEP, mobile and modular, which allows to perform the treatment in situ, in a closed circuit, without emptying the transformer, in on-load mode, i.e. maintaining the transformers in service during PCB decontamination. The latter feature was particularly successful in a scenario, such as the Egyptian one, which will focus on transformers used in national electricity production and transmission. The Sea Marconi solution will therefore make it possible to move the treatment plants in the vicinity of the transformers to be decontaminated and to treat them without putting them out of service.

The plants by Sea Marconi (together with the patented reagents and the operating methodology, i.e. the CDP Process® system) will allow the Egyptian ministries of the Environment and Energy to meet the obligations of the Stockholm Convention on the sustainable management of persistent organic pollutants (POPs).
At the end of the project, that is when all the transformers will have a stable contamination below 50 mg/kg of PCB, the plants produced by Sea Marconi can still be used for maintenance activities aimed at extending the life cycle of oils and electrical equipment.

The post Egitto, Sea Marconi vince la gara, realizza e spedisce ad Alessandria gli impianti di decontaminazione PCB appeared first on Sea Marconi.

Among the activities at the end of 2015, the training provided by Sea Marconi to a Philippine government delegation must surely be remembered. In particular, from 17 November to 20 November, 14 members of the Environmental Management Bureau (EMB), National Environment and Natural Resources Department, participated in an advanced training course on PCB problem management.
The training programme was divided in 4 days: the first was mostly theoretical and introduced the PCB theme (definitions, identification, inventory); the second day was both theoretical and practical and first analysed PCBs in the Sea Marconi official laboratory, and subsequently the decontamination / disposal technologies for PCB-contaminated fluids; the third day handled the international regulatory framework (IEC, CENELEC etc.); on the fourth day, there was a site visit to witness a Sea Marconi decontamination treatment.
Sea Marconi employed 6 trainers on this occasion and each of them was expert and skilled in his/her field. All trainers belonged to Sea Marconi staff, except one: we also availed ourselves of the expertise of Prof. Massimo Pompili from La Sapienza University of Rome, who, thanks to his role as IEC TC 10 Secretary on insulating fluids, is among the most qualified international professionals in this field.
In recent years, contacts with the Philippines have increased: local authorities invited us in Manila and Davao in April 2011 to present Sea Marconi’s solutions to the PCB problem and then, in November 2012, a delegation from the Philippines visited us for the accreditation and auditing of Sea Marconi’s “PCBs Free Program” solution.

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After about a year since the last trip to Russia, on last 11 November 2015, Vander (Sea Marconi general partner) and Cristina Tumiatti (marketing and sales director) returned to Moscow to offer solutions to the PCB problem in Russia.
This time, the invitation came from EDF Fenice-Russia, the organiser of an event dedicated to sustainable business; as part of this working day, Sea Marconi was asked to introduce the PCB problem (definitions, risks, legal framework etc.) and propose an action plan for the management and treatment of PBC-contaminated electrical equipment and oils in Russia.

In addition to its undisputed international leadership on this issue, Sea Marconi was invited to Russia thanks to the strong collaboration that has brought our company to support the EDF-Fenice Group, both in France and in Italy, for several years and still today. In particular, Sea Marconi is in charge of the analysis and diagnosis of strategic transformers in the nuclear,thermoelectric and hydroelectric power plants for EDF France.
Technical-scientific information events such as the one held on 11 November in Moscow confirm Russia’s commitment (as a signatory to the Stockholm Convention) to undertaking the process of PCB decontamination, and the country’s largest companies affected by the problem are showing concrete signs of moving in this direction.

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Even Iran has put the PCB problem “on the agenda”: a special analysis was in fact dedicated to this topic during the “POP’s management workshop” held on 9 November in Tehran. The Iranian Ministry of the Environment and Industry is currently exploring the different solutions for management (inventory, decontamination, disposal) of the PCB problem; several international operators attended the meeting, each with the task of explaining their methods for treating this POP (Persistent Organic Pollutant). It has to be remembered that “POPs are chemical compounds with toxic properties that propagate in air, water or soil and, because of their poor degradability, remain in the environment for a long time”. In this approach, 12 major pollutants: aldrin, chlordane, dichloro diphenyl trichloroethane, dieldrin, endrin, heptachlor, mirex, toxaphene, hexachlorophene and three classes of compounds: polychlorinated dibenzodioxins (PCDD, more commonly known as dioxin), polychlorinated dibenzofurans (PCDF) and polychlorinated biphenyls (PCBs) are related by action and persistence.

Sea Marconi took part in the “POP’s management workshop” in cooperation with TREDI, a French company offering complementary services to those provided by Sea Marconi. Our approach, in fact, aims at the preservation of PCB-contaminated assets through complete decontamination of oils and electrical equipment contained. The immediate advantage is that of avoiding waste production, as well as the disposal and incineration of PCBs, thus also reducing the costs of managing contaminated materials.
Sea Marconi works with its mobile units (DMU) that suck oil from the transformer and, step by step, remove PCBs from the transformer and the oil. This treatment, called CDP Process, is performed safely, on-site (even with working transformers), in a continuous, closed circuit, without even partial emptying of the transformer. Not only does the CDP Process guarantee a “PCB-free” transformer, it also brings the oil’s dielectric properties back to optimal conditions.

Clicca qui per approfondire tutti i vantaggi del CDP Process

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The first relations between Sea Marconi and Vietnam date back to 2003, when a technological cooperation agreement was signed on “Clean Technologies” between the European Commission and Asian area.
Twelve years later, last 11th and 12th May 2015, we were pleased to host a delegation of the Vietnamese national electricity company, EVN*. Their objective was to select the best technology available for the decontamination of oils and transformers contaminated by PCBs in the context of a broader project, UNIDO. Sea Marconi has already responded to these types of requests (e.g.: Macedonia project) and welcomes them into its production process as a core business activity.

On the first day, two companies were introduced along with a detailed presentation of Sea Marconi’s oil analysis methodology, on thediagnosis of criticalities of electrical equipment (operational and environmental) and on theonsite decontamination of transformers with PCBs. On the second day, the delegation was accompanied during a visit to the IREN power station in north Turin, and when it returned to Sea Marconi, was able to go into more detail on our laboratory analysis and the department for oil treatment systems, designed and produced in-house.

As experts in this sector, the Vietnamese guests appreciated the Sea Marconi approach focused on the protection of assets and the environmentand the possibility to develop integrated treatments, capable of “sanitising” multiple criticalities in the oil, both chemical and physical, such as water, gas, PCBs and DBDS, in a single treatment on the transformer.

The encounter was concluded with an invitation to Sea Marconi to learn more about the theme of fighting PCBs in Hanoi in July 2015.

*Vietnam Electricity (EVN) is the largest electricity company in Vietnam with an installed electricity generation capacity of 8,860 MW and a distribution network of 19396 km. According to the 2007 UNDP report, EVN is the third largest company in the country

Vietnam’s Economic data

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