The plastic-eating ‘robot shark’ cleaning up the River Thames

The Aqua Libra Wasteshark, a remote control robot designed to pick up litter on water, in te Middle Dock of Canary Wharf. Canary Wharf, London

A robotic shark that gobbles up plastic waste has been let loose in London’s docklands, to clean up the water by removing the equivalent of more than 22,700 plastic bottles per day, according to its developers.

The battery-powered electric catamaran, called WasteShark, can travel up to 5km through water before needing a recharge and collect up to 500kg of plastic and other pollutants as it guides itself through the water.

“WasteShark is a drone on water and it’s designed to sweep the surface of the water and collect trash, debris, biomass out of the water and return it back to land,” Richard Hardiman, CEO and founder of WasteShark’s makers RanMarine said as he watched one of his devices in the water in Canary Wharf.

WasteShark produces no carbon, noise or light pollution as it travels, and poses no threat to wildlife.

It is designed to rid waterways of plastic waste and make sure the plastic collected is recycled and reused.

“We have two versions, one that can be remotely controlled and one that is autonomous, very similar to a vacuum cleaner you might have at home,” Hardiman said.

“The idea is on the autonomous mode that it acts as a drone. So it literally sweeps around the water. You can go and do your job, come back and it should be full and you empty it and then you put it back in,” he said.

Twitter link

The machines also collect data on water quality as they travel, sending back readings on turbidity, salinity, temperature, pH balance, and depth of the water.

Published by RTE

more news

How autonomous surface vessels and real-time sensors tackle “dead zones” by neutralizing toxic algae and skimming decaying organic biomass.
Discover how record-breaking Sargassum seaweed levels in 2026 are impacting Caribbean tourism, room rates, and resort operations.
How an idea hatched in a Cape Town quayside became a fleet of autonomous robots cleaning waterways worldwide, and why real sustainability only works with a sound business model behind it.
Türkiye is using constructed wetlands to fight nutrient pollution and algal blooms, but the results show why active water monitoring still matters.
What South Africa’s Green Drop crisis tells us about the pressure on public waterways, and why the gap between treatment plant infrastructure and the water people actually see matters.

Ready to see our shark in action?

Get in touch for a live virtual demo or a quote.
Our team is ready to help.

Trusted by Port Authorities and Facilities Management Teams across the globe

Proven technology. Global Impact.

Don’t just take our word for it. Explore our case studies to see how our customers use data-driven autonomy to create cleaner, safer waters around the world.

Love Boat

Maintaining water quality in Italian harbours, marinas and inland waters to meet tourist standards whilst protecting the environment in a cost- and labour-efficient manner

BIC Consolidated

Maintaining pristine water quality across vast, debris-prone commercial waterfronts using traditional methods was labour-intensive, inefficient and lacked audit data

Leeds Waterfront Group

Leeds’ waterways collect tons of floating debris annually, overwhelming manual clean-up crews and threatening wildlife habitats along the River Aire, Leeds and Liverpool Canals

Our Technology

Advanced robotics designed to clean, monitor, and restore marine environments.

WasteShark

Manual & Accessible

The essential tool for calm waters

WasteShark +

Built for Professionals

Power and speed for marinas & ports

WasteShark + Pro

Intelligent Autonomy

LiDAR guided cleaning with data capabilities

CyanoShark

Harmful Algae Solution

Specialized filtration to remove harmful blooms and biomass

MegaShark

Industrial Capacity

Heavy-duty waste removal for ports and large waterways

RanMarine Connect

Unified Data Platform

Real-time water quality monitoring and fleet management

Talk to Us

Tell us what you’re dealing with, we’ll help you find the right solution.

Cleaner waters, delivered to your inbox.

Join 2,000+ subscribers receiving the latest updates on marine technology and sustainability.

Schedule your demo

Book your 30-minute live demo with a RanMarine specialist.
(Subject to location and availability)

Request your brochure

Please select the product or data service of interest below to receive the technical documentation.

Submit a Support Ticket