Planeteers GmbH

University of Hamburg, Mittelweg, Eimsbüttel, Germany

Reactor-based ocean alkalinity enhancement

We exploit CO2 from wastewater treatment facilities, mix it with water and limestone. During the reaction, CO2 is consumed and trapped as alkaline solution. Afterwards, the solution is diluted until it is uncritical for the local aquatic system and discharged into river estuaries or oceans.
Country: Germany
Status: In Development
Type: Ocean Alkalinity Enhancement

Vycarb

Brooklyn Navy Yard, Brooklyn, NY, USA

Enabling decentralized carbon removal through real-time, autonomous, and direct measurement of CO2 in water.

With multiple pilots deployed on the US east coast, Vycarb’s modular, autonomous system uses a real-time measurement technology and accelerated alkalinity dissolution to optimize CO2 removal to water’s naturally-changing chemical conditions. Designed for deployment across any high-CO2 waters, Vycarb’s system creates the first fully-measured, ecologically beneficial carbon removal and storage that can be distributed around the world.
Country: United States
Status: In Development
Type: Ocean Alkalinity Enhancement

Ebb Carbon

Sequim Bay State Park, U.S. 101, Sequim, WA, USA

Enhances ocean’s natural ability to store CO2

Ebb Carbon is pioneering a new carbon removal solution by enhancing the ocean’s natural ability to safely store CO2. Our electrochemical ocean alkalinity enhancement method has the potential to be one of the largest scale and lowest cost approaches to removing excess CO2, while reducing ocean acidity. This first of a kind demonstration project is designed to remove 100 metric tons of CO2 per year at full capacity.
Country: United States
Status: In Development
Type: Ocean Alkalinity Enhancement