---
title: Plymouth Marine Laboratory confirms viability of novel carbon removal technique
description: Plymouth Marine Laboratory confirms viability of novel carbon removal technique
---

[Skip to content](https://knowledge.curationcorp.com/knowledge/plymouth-marine-laboratory-confirms-viability-of-novel-carbon-removal-technique#main-content)

English

Show submenu for translations

![Curation Logo Transparent (1)-1-1.png\]](https://knowledge.curationcorp.com/hs-fs/hubfs/Curation%20Logo%20Transparent%20(1)-1-1.png?height=41&name=Curation%20Logo%20Transparent%20(1)-1-1.png)

Open main navigation

Close main navigation

- English
  
  Show submenu for translations
- Go to curationcorp.com

 Go to curationcorp.com

 Welcome to the Ocean 14 Knowledge Base

- There are no suggestions because the search field is empty.

1. [Ocean 14 Knowledge Base](https://knowledge.curationcorp.com/knowledge?hsLang=en)
2. [Carbon Capture & Sensors](https://knowledge.curationcorp.com/knowledge/carbon-capture-sensors?hsLang=en)

# Plymouth Marine Laboratory confirms viability of novel carbon removal technique

Plymouth Marine Laboratory (PML) and PML Applications have validated a novel ocean carbon dioxide removal (oCDR) technique by enhancing the alkalinity of treated wastewater before sea discharge a safe and effective way of deacidifying seawater, which could then draw down atmospheric carbon dioxide. In a 2022 trial off St Ives Bay, Cornwall, Planetary Technologies added diluted magnesium hydroxide to wastewater, increasing alkalinity and reducing dissolved CO2 levels by up to 74%. The alkalinity returned to normal quickly, confirming reversibility. The trial showed limited impact, but confirmed the method's potential. ([The Engineer](https://www.theengineer.co.uk/content/news/new-ocean-carbon-removal-technique-proves-successful))

- [Rio Weekly - Innov8](https://knowledge.curationcorp.com/knowledge/rio-weekly-innov8?hsLang=en)
- [Accelerate](https://knowledge.curationcorp.com/knowledge/accelerate?hsLang=en)
- [Aquaculture](https://knowledge.curationcorp.com/knowledge/aquaculture?hsLang=en)
- [Ocean Sustainability](https://knowledge.curationcorp.com/knowledge/ocean-sustainability?hsLang=en)
- [Carbon Capture & Sensors](https://knowledge.curationcorp.com/knowledge/carbon-capture-sensors?hsLang=en)
- [Emerging Preservation Technology](https://knowledge.curationcorp.com/knowledge/emerging-preservation-technology?hsLang=en)

[![Curation.png](https://knowledge.curationcorp.com/hs-fs/hubfs/black%20curation%20logo.png?width=1584&height=396&name=black%20curation%20logo.png "Curation.png")](http://curationcorp.com)

Ocean 14 Knowledge Base

Copyright © 2026, Curation Corporation Limited