CREW Carbon Partners with East Coast Wastewater Plants for Carbon Removal Using Limestone
CREW Carbon, a New Haven startup, is partnering with East Coast wastewater treatment plants to implement a carbon removal method using limestone, which reacts with carbon dioxide to produce bicarbonate ions for ocean storage. This approach, aimed at removing thousands of tons of CO2 annually, has led to the sale of carbon removal credits and is expected to help municipalities with cost savings and improved water quality. Founded by Yale graduates in 2022, CREW Carbon plans to remove approximately 70,000 tons of CO2 in the coming years, although concerns about long-term impacts remain.
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CREW Carbon, a startup from New Haven, is implementing a carbon removal approach using limestone at wastewater treatment plants on the East Coast, including Fall River's facility. This method treats wastewater by reacting calcium carbonate in limestone with carbon dioxide, producing bicarbonate ions that can be stored in the ocean.
The company claims a single treatment plant can remove thousands of tons of CO2 annually and has begun selling carbon removal credits. CREW Carbon, founded in 2022 by Yale graduates, has established six projects and aims to remove approximately 70,000 tons of CO2 in the coming years.
The use of limestone also offers cost savings and improved water quality for municipalities. The approach is seen as part of a broader strategy to address climate change, though scientific questions about the long-term impacts remain.
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