通过海洋环境影响评估在海洋中储存CO2的可行性研究
Da Hee Jung1, Gyeol Ko2, Jin-Su Kwak2
1Advanced Propulsion System Research Department, Future Ship Research Laboratory, Advanced Research Center, HD Korea Shipbuilding & Offshore Engineering Co., Ltd., 477 Bundangsuseo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13553, Republic of Korea; Graduate School of Energy and Environment (KU-KIST GREEN SCHOOL), Korea University, 520, KU R&D Center, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
The Science of the total environment
|August 14, 2023
概括
这项研究探讨了将大气中的二氧化碳 (CO2) 转化为海洋中的碳酸盐. 结果表明,这种方法可用于减轻二氧化碳排放,对海洋生物的影响最小.
科学领域:
- 环境科学 环境科学
- 海洋化学 海洋化学
- 生物地质化学生物地质化学
背景情况:
- 工业化和化石燃料的使用显著增加了大气中的二氧化碳 (CO2) 水平,推动了全球变暖.
- 海洋吸收大量的二氧化碳,促使研究以海洋为基础的减缓策略.
- 将二氧化碳转化为海洋碳酸盐为碳封存提供了一个潜在的途径.
研究的目的:
- 优化大气中的二氧化碳在海水中转化为二碳酸盐的条件.
- 评估增加的溶解无机碳 (DIC) 对海洋浮游生物的生物影响.
- 评估海洋二氧化碳储存的环境可行性.
主要方法:
- 通过分析溶解无机碳 (DIC) 度和pH值,研究了最佳的二氧化碳转化为二碳酸盐.
- 进行了实验室规模的Skeletonema japonicum实验,在各种DIC度 (2.518.75毫米) 的范围内进行实验.
- 进行了海洋环境影响建模,以模拟排放的DIC的分散和影响.
主要成果:
- 最佳的二氧化碳转化为碳酸盐发生在低于6.38毫米的DIC度下.
- 植物浮游生物 (Skeletonema japonicum) 仅在非常高的DIC度下显示出轻微的生长抑制.
- 海流建模表明稀释效应可以抵消局部高DIC度.
结论:
- 海洋储存二氧化碳作为二氧化碳是一种可行的缓解策略.
- 这一过程对海洋浮游植物产生了可控的环境影响,特别是考虑到自然的海洋流.
- 这项研究为开发先进的二氧化碳减排技术提供了基础.
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