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CREW Carbon

CREW Carbon removes greenhouse gas emissions from wastewater using patented engineered enhanced weathering. Our technology adds natural minerals to wastewater, converting CO2 into stable bicarbonate ions, which permanently captures carbon dioxide while improving pH and alkalinity. Thousands of tons of CO2 are captured annually.
2022
2-10
Hamden, Connecticut, United States

https://www.crewcarbon.com

Carbon CaptureEnvironmental EngineeringRecyclingSustainabilityWaterWater Purification
Innovation
Investment Funding
People
Products
Awards and Recognitions
M&A and Collabs
News

Innovation

Industry Problem

CREW solves costly, unsafe pH control in wastewater treatment while permanently capturing CO2 to reduce greenhouse gas emissions. Their technology makes carbon removal affordable, safe, and easy to measure.

R&D Focus

CREW focuses on R&D in enhanced weathering technology for carbon capture and pH optimization within wastewater treatment systems. Their niche is mineral-based, permanent CO2 removal integrated into existing wastewater infrastructure.

Innovative Solution

CREW’s solution adds natural minerals such as calcium carbonate to wastewater, which react with CO2 to form stable, inert bicarbonate ions. This process improves pH and alkalinity control safely and cost-effectively while permanently capturing carbon dioxide within existing treatment systems.

Solution Effectiveness

CREW’s technology has proven effective by capturing thousands of tons of CO₂ annually at wastewater plants, such as removing around 4,000 tons per year at a 40 MGD facility. By adding natural minerals such as calcium carbonate, their process permanently converts CO₂ into stable bicarbonate ions while improving wastewater treatment efficiency, delivering both environmental and operational benefits.

Investment Funding

Last Funding Stage

Seed

Total Funding Amount

$5.3M

Last Funding Amount

$5.3M

Last Funding Date

October, 2024

Startup Stage

Seed

Lead Investors

Connecticut Innovations, Newlab, Counteract, Imagine H2O, ReGen Ventures

People

Founders

  • Joachim Katchinoff
  • Noah Planavsky

CEO

  • Joachim Katchinoff

Products

Product

– CREW Carbon Technology – Uses enhanced weathering with natural minerals (such as calcium carbonate) to capture and permanently store CO₂ as inert bicarbonate ions during wastewater treatment. – Mineral Dosing System – Integrates seamlessly into existing wastewater treatment processes to add minerals that optimize pH and alkalinity while enabling carbon capture. – Inlet and Outlet Monitoring Sensors – Provide precise, real-time measurement of CO₂ removal by monitoring wastewater before and after treatment. – Enhanced Weathering Process – Accelerates the natural mineral weathering reaction to lock carbon dioxide into stable compounds, improving treatment efficiency and reducing greenhouse gas emissions. – Customer Reviews – NA

Star Product

CREW Carbon Technology is the core innovation that seamlessly integrates natural mineral dosing and real-time monitoring into existing wastewater treatment plants, permanently capturing CO₂ while improving pH control and operational safety. This dual benefit, effective carbon removal combined with wastewater treatment optimization, makes it uniquely valuable and scalable in addressing climate goals.

Demo Product or Complete Product?

CREW Carbon has launched its first commercial product, Wastewater Alkalinity Enhancement (WAE) carbon removal technology, with the verified delivery of carbon removal credits in May 2025. This milestone marks the transition from development to large-scale deployment, as the technology is now fully operational at a major wastewater treatment facility in New Haven, Connecticut, processing 40 million gallons per day.

Awards and Recognitions

Awards

– U.S. Department of Energy (DOE) Carbon Dioxide Removal Purchase Prize – Innovator of the month 2023

Media Apperance

– Frontier – Reuters – PR Newswire – Insider

M&A and Collabs

Collab

In collaboration with Isometric, CREW Carbon delivered the first-ever verified Wastewater Alkalinity Enhancement (WAE) carbon removal credits. These credits were generated from a project in New Haven, Connecticut, and certified under Isometric’s scientifically rigorous WAE Protocol .

Collab

ReGen Ventures collaborates with CREW Carbon to enhance the natural power of minerals in wastewater treatment processes, contributing to CO₂ removal efforts