Assessing the contribution of Tidal Flats to climate change and carbon neutrality through modeling approaches.

Tidal coastal ecosystems show promising potential as natural carbon sinks in mitigating climate change. Under the combined effect of carbon deposition, capturing, converting, and storing atmospheric CO into coastal sediments over a long period, tidal flats are of great significance to the ecology. In addition to preventing coastal erosion, the organic carbon buried in tidal flats should play an important role in mitigating climate change and achieving the carbon neutrality target.

Surfactant-enhanced ozone sparging for removal of organic compounds from sand.

An innovative surfactant-enhanced ozone sparging (SEOS) technique was developed in this study. The synergistic effect of simultaneous surfactant and ozone application on the removal of organic contaminants in an aquifer during air sparging was investigated. Using laboratory-scale one- and two-dimensional physical models packed with water-saturated sand, air sparging and ozone sparging were implemented either at high or low level surface tension of the groundwater.