Nakamura et al. (2023): pCO2 decrement through alkalinity enhancement and biological production in a shallow-water ecosystem constructed using steelmaking slag

Wataru Nakamura, Chika Kosugi, Ko Yoshimura, Toshiaki Kato, Jun Sasaki, Yoshiyuki Nakamura IN: Marine Environmental Research, 106223, https://doi.org/10.1016/j.marenvres.2023.106223

To evaluate the function of steelmaking slag from the viewpoints of CO₂ reduction and creation of new blue carbon ecosystems, the authors conducted a comparative experiment using two mesocosms that replicated tidal-flats and shallow-water ecosystems. Initially, approximately 20 seagrasses (Zostera marina) were transplanted into the shallow-water area in the mesocosm tanks. The use of steelmaking slag is expected to increase the pH by releasing calcium and mitigate turbidity by solidifying dredged soil. In the experimental tank, where dredged soil and steelmaking slag were utilized as bed materials, the pH remained higher throughout the experimental period compared with the control tank, which utilized only dredged soil.

LINK