Methodology for In-situ Phycoremediation of Eutrophic River-estuary Systems

 
The proposed new methodology is based on biological carbon sequestration using microalgal technology. The project activities are based on the in-situ bioremediation of eutrophic river-estuary systems using a microalgae-based consortium constituted by native microalgae. The idea is to emulate natural seasonal microalgal blooms with fast growth rates and high nutrient uptake, contributing to microalgal biomass production and accumulation. During these seasonal phytoplankton blooms, photosynthesis exceeds respiration and the system acts as a sink of CO2 due to organic matter production and carbon fixation into algal biomass. Once microalgal biomass aggregate and flocculate, microalgal cells sediment and accumulate in the riverbed, increasing soil organic carbon. The proposed new methodology applies to river-estuary systems in tropical and subtropic regions.

The methodology idea note was submitted by 1010 Solutions (opens on external site) and is currently at “Step 1: Methodology Idea Note Submission” of the VCS Methodology Development and Review Process, v4.3 (PDF).

Stakeholders interested in collaborating during methodology development or developing projects that this methodology might enable are encouraged to contact methodologies@verra.org. Please include Methodology Development ID# M0208 in the subject line.