Technical data

Propulsion Hybride Innovante

An innovative hybrid propulsion system for a clean ship

To reduce her footprint to a strict minimum, the Manta will be powered not only with automated riggings but also with propulsion units with propellers driven by electric motors.

The electrical power required for operating these riggings and electric motors will be supplied by on-board renewable energy equipment as well as by the waste-to-energy unit.

Equipments for energy production

2 Darrieus wind generators
~500 kW

~2000 m² of solar panels
100 kW

4 automated riggings
more than 2500m² of sails

1 waste-to-energy production unit
500 kW

Equipements Production Energie
Grande Mobilite Illimite

High mobility and unlimited scope

With her hybrid propulsion system, the Manta offers the necessary mobility to rapidly reach river mouths and estuaries where floating plastic waste is still concentrated by winds and currents and not broken down yet or didn’t begin their oceanic drift towards the “plastic continents”.

The Manta can also quickly operate anywhere in the world in case of natural disaster (hurricane, tsunami, etc.) in high density plastic pollution areas to collect floating macro-waste before they sink in the oceans.

Optimal Autonomy

The large energy production and storage capacity ( ~100 tons of batteries) on board as well as the hybrid propulsion system (sails and propellers) offer the Manta a maximized autonomy to move or during her work phases.
Autonomie Optimale
Usine Embarquee

On board factory

To collect, sort, compact, store and convert plastic waste into energy.

A unique collection system at sea

The focus has been put on the waste collection system. The engineering consulting firms are concentrating their efforts to provide an innovative and efficient solution.

The collectors, between the two hulls, will have the capability to quickly bring waste on board towards the manual sorting unit.

Systeme Collecte
Unite Tri Dechets

A waste sorting Unit

Downstream of the collection system, waste is conveyed to sorting tables where operators manually separate plastic and metallic waste, not soiled organic materials and containers with potential toxic or dangerous waste.

A storage capacity of 600 m³

The sorted waste is then transported by conveyors to compactors to extract a maximum of water and to compact them in ~1m³ balls sent by conveyers to the bilge. The Manta can store the equivalent of 250 tons of waste in her hulls before bringing them back to land for them to be processed in waste treatment or recycling facilities.
Systeme Collecte
Equipement Production Energie

A waste-to-energy unit

A waste-to-energy unit is installed on board to convert collected waste in electricity. This unit includes the equipments preparing waste to dry them and homogenize them in terms of particle size. The treated waste is then converted in gas and oils through a “pyrolysis”, “pyro-gasification” or “catalytic depolymerization” process still in research, before being converted to electricity.

Large floating waste

With her 2 powerful cranes, the Manta can also lift bigger floating waste (drift nets, containers lost by cargo ships, waste coming from land, etc.) to store them on board and be brought back on land to be processed by dedicated sectors.
Grues Gros Debris Flottants
Donnees Partagees

A source of shared data

In order to improve the knowledge in ocean plastic pollution and to strengthen the prevention of pollution, the Manta offers a true scientific laboratory which will allow the scientific team on board to geo-position, quantify and qualify waste during the collection campaigns. These data will be supplied to the international scientific community in Open Data.