This experiment was carried out to figure out the CO2 biomass and the growth response of Chinese cabbage and radish grown under the condition of high temperature and high CO2 concentration to provide the information for the coming climatic change. Chinese cabbage and radish were cultivated in spring and autumn seasons under 4 treatments, 'ambient temp.+ambient CO2 conc.', 'ambient temp.+elevated CO2 conc.', 'elevated temp.+ ambient CO2 conc.', and 'elevated temp. +elevated CO2 conc.'. The 'elevated temp,' plot was maintained at 5 higher than 'ambient temp. (outside temperature)'and the 'elevated CO2 cone.' plot was done in 650 ppm CO2. The growth of spring-sown Chinese cabbage was worse than autumn-sown one, and was affected more by high temperature than high CO2. concentration. The CO2 biomass of Chinese cabbage was lower as 25.1-39.1 g/plant in spring-sown one than 54.8-63.4 g/plant of autumn-sown one. Daily CO22 fixation ability was not significantly different between spring- and autumn-sown Chinese cabbage as 1.9-2.9, 2.7-3.1 kg/10a/day, respectively. The CO2 biomass of radish were 87.4-104.6 /plant in spring-sown one and 51.3~76.4 g/plant in autumn-sown one. Daily CO2 fixation ability of radish were 6.2-10.1 kg/10a/day in spring-sown one and 4.6-6.9 kg/10a/day in autumn-sown one.

In order to cope with some drawbacks of conventional CCS (Carbon Capture and Storage) technologies, the new way to deal carbon dioxide have been studied a lot. One way to deal emitted carbon dioxide is to convert carbon dioxide into metal carbonate salt which can be used for various purposes such as raw materials for construction, additives for paper-making industries and so on. In this method, securing the source for metal cation is important and in this research, concentrated industrial wastewater was used to supply metal cation. In the wastewater, calcium and magnesium ions were dissolved and this could make cpatured carbon dioxide to be converted to metal carbonate salts. As a result of the chemical conversion, the amount of carbon dioxide converted to the precipitated salts and the crystal structures of them were suggested. To verify the crystal structures and the composition of salt mixtures, Scanning Electron Microscope and X-Ray Diffraction analysis were utilized.