Wastewater Treatment for Carbon Dioxide Removal.

ABSTRACT: Wastewater treatment is notorious for its hefty carbon footprint, accounting for 1-2% of global greenhouse gas (GHG) emissions. Nonetheless, the treatment process itself could also present an innovative carbon dioxide removal (CDR) approach. Here, the calcium (Ca)-rich effluent of a phosphorus (P) recovery system from municipal wastewater (P recovered as calcium phosphate) was used for CDR. The effluent was bubbled with concentrated CO₂, leading to its mineralization, i.e., CO₂ stored as stable carbonate minerals. The chemical and microstructural properties of the newly formed minerals were ascertained by using state-of-the-art analytical techniques. FTIR identified CO₃ bonds and carbonate stretching, XRF and SEM-EDX measured a high Ca concentration, and SE

SUBMITTER: Masindi V 

PROVIDER: S-EPMC10620921 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature