World Oceans Day 2025

World Oceans Day is an annual event celebrated globally on June 8th, aimed at raising awareness about the crucial role oceans play in sustaining life on Earth. This day highlights the importance of conserving and protecting our oceans, which cover more than 70% of the planet’s surface and are vital to the health of the global ecosystem.

World Oceans Day 2025

World Oceans Day is an annual event celebrated globally to honour and protect the world’s oceans while raising awareness about the crucial role they play in our lives. Celebrated on June 8th each year, World Oceans Day aims to unite people and inspire action for the sustainable management of the world’s oceans.

Our oceans cover 70% of the planet’s surface and play a vital role in sustaining life. From providing oxygen for every second breath, we take to feeding billions of people and hosting 80% of the world’s biodiversity, the ocean is essential to our existence.

This year’s theme is “Wonder – Sustaining What Sustains Us,” and underscores the importance of sustainable fishing practices in ensuring the health and abundance of marine resources for generations to come.

Main Concerns About Our Oceans

The health of our oceans is under significant threat due to various human activities, including:

• Water Pollution: One of the most pressing issues is the pollution of our oceans. This includes plastic waste, oil spills, and agricultural runoff, which harm marine life and disrupt ecosystems.
• Overfishing: Unsustainable fishing practices deplete fish populations and damage marine habitats, threatening food security and biodiversity.
• Climate Change: Rising sea temperatures and ocean acidification, caused by increased carbon dioxide emissions, have severe impacts on coral reefs and marine species.
• Habitat Destruction: Coastal development and destructive fishing practices lead to the loss of vital habitats such as mangroves, seagrasses, and coral reefs.

Sustainable Aquaculture

Of interest to us at Arvia is aquaculture. This intensive fish-farming method relies on water quality and even in offshore facilities, our water treatments have found uses, whilst in Recirculating Aquaculture System (RAS) onshore systems, our systems are ideal for controlling water quality.

In RAS installations, there is an ongoing risk of significant stock loss due to biosecurity lapses, often necessitating the use of antibiotics or other medicines to counter organic build-up. The active pharmaceutical ingredients (APIs) from these treatments must be removed from the water to prevent microbial resistance. Arvia’s Nyex™ systems are ideally suited for removing numerous APIs and endocrine-disrupting compounds (EDCs) down to parts per billion levels.

Furthermore, fish grown in an RAS may develop off-flavours from compounds like geosmin. While not harmful or toxic, these off-flavours can diminish the value of the harvest. Nyex™ is highly effective at removing these compounds.

Protecting Marine Life

The fishing industry is worried about over-fishing and other countries’ boats ‘poaching’ their stocks.

Over-fishing can be controlled by international co-operation as was proven in the North Sea for many years, whilst unlicensed fishing normally requires more forcible means to enforce.

The other less spoken-about issue facing the whole of the fishing industry is that of pollution which is also responsible for depleting stocks and will have more of an impact in the future. We are not talking about microplastics or human waste, although these are real problems too.

What we are focussing on is far more insidious: families of chemicals that do not easily break down in water – chemicals that will continue to pollute for many years.

These chemicals – PFAS, endocrine disruptors and many antibiotics, are present in ever-growing amounts in river and sea water and pose a far bigger threat to the whole of the fishing industry.

Benefits of Water Reuse

Wastewater reuse at plant or process level is the most cost-effective method of industrial water treatment, so what is often required are small units that retrofit alongside or into existing installations.

Of many water-treatment methods available, only electrochemistry is truly capable of reducing many pollutants, poisonous solvents, battery chemicals, and recalcitrant compounds down to trace levels in wastewater.

The advantage of an electrochemical process is that it is normally achieved without the use of additional toxic chemicals or substantial amounts of electricity. Many of these systems also have a compact and flexible form factor, something that legacy systems like activated carbon or RO struggle to deliver.

Conclusion

World Oceans Day serves as a vital reminder of the importance of our oceans and the urgent need to address the challenges they face. By understanding the main concerns and embracing this year’s theme, we can work together to ensure a healthier and more sustainable future for our planet’s oceans. Let us commit to making positive changes, big or small, to protect our blue planet.

About Arvia

Arvia is one of the world’s leading manufacturers of electrochemical water treatment products.

With design, manufacturing, and R&D in the UK, they also have labs in India, a facility in China and have expanded into the US.

Arvia’s treatment systems include Nyex.3 Florenox, Nyex Rosalox and Nyex Ellenox – three revolutionary systems specifically designed for tertiary water treatment, each delivering spectacular (up to parts per billion) results treating many recalcitrant pollutants in industrial wastewater like PFAS, endocrine disruptors and antibiotics.

To see how Arvia Technology could benefit many water treatment systems worldwide, check the Arvia website or make contact to set up a one-to-one consultation with a water science expert.

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Our wastewater treatment expertise

Our water technology can be used to treat a variety of water treatment applications. Once we understand the nature of your wastewater and your final water quality target, our water treatment specialists can make recommendations as to how best to treat your water. Take a look at some of the Nyex applications here:

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