HIPPO, Thailand

Chao Praya River

Get to know the HIPPO - Coming soon

While we acknowledge the impact that targeting rivers can have, we also realise that there are unique complexities and financial costs in stopping the plastic pollution leaking from the rivers while also allowing for its unhindered economic activity, and its collection and recycling.

To address these complexities, we commissioned up with Longitude Engineering to develop a low-tech, low-cost, and scalable River Plastic Recovery technology, for automating the collection of river plastic waste and powered almost solely by renewable energy. Meet the HIPPO (or otherwise known as High Impact Plastic Pollution remOver), it will help stem the flow if the plastic that enters the ocean from the Chao Phraya River in Bangkok.

kg of plastic removed

We really trust our process

Our new super mega plastic killer robot.

According to the Pollution Control Department (PCD) of Thailand, the country produces two million tonnes of plastic waste annually (12% of total waste), of which only 25% is recycled. Hence intercepting the plastic waste leakage from the Chao Phraya River is adamant if we are to stop the significant volumes of plastic waste entering the ocean.

True partnership

For this project, Seven Clean Seas is working in collaboration with multiple government stakeholders, as well as The International Union for Conservation of Nature (IUCN) as an implementation partner overseeing the successful execution in the local market, while we also have established a strong partnership with the monks in charge of the nearby Wat Chak Daeng temple. And we are very happo about it 😉

More than 70% of all ocean plastic enters the ocean via rivers.

Rivers provide both a problematic “conveyor belt” of plastic waste leakage, and at the same time an opportunity for addressing problem more efficiently (before it disperses) and before it can have higher negative impacts on marine life and our health and capturing the plastic waste before it degrades too much – hence increasing its recyclability.

Project partners


Bintan, Indonesia

We developed an efficient plastic collection and sorting infrastructure in Bintan, Indonesia to recover plastic pollution from the ocean. Our Materials Recovery Facility (MRF) ensures that plastics are diverted from the struggling landfill and ultimately recirculated into the circular economy via recycling where possible and secondary co-processing solutions where necessary.

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Batam, Indonesia

Batam is an island in the Riau Archipelago battling ocean plastic pollution. We’re building a multisite project to remove plastic pollution from the ocean around 2 coastal communities and 1 highly polluted river. It kicked off in November 2022 so watch this space because we’re going BIG!

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