通过微藻驱动的碳酸盐沉和生物仿真催化提高海洋的性和CO2捕获
Tahir Fazal1, Yuze Wang1, Yongyu Zhang2
1Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
Journal of environmental management
|January 6, 2026
概括
这项研究介绍了一种生物混合系统,将微藻与碳酸酶催化剂相结合,以增强碳捕获和海洋性. 这种创新方法显著增加了生物质,碳酸盐沉和性,为二氧化碳捕获提供了一个有希望的解决方案.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 微藻诱导碳酸盐沉 (MAICP) 是一种潜在的二氧化碳捕获和海洋性增强战略.
- 目前的MAICP方法面临的局限性是由于二氧化碳的加水速度缓慢,二碳酸盐的产量减少,以及抑制海藻生长和海水中的碳酸盐矿化.
研究的目的:
- 开发和评估一个生物混合生物仿真-MAICP系统,将微藻与碳酸功能化的金属有机框架 (CA@fZnMOF-5) 集成在一起,以加速CO2水化和矿化.
- 评估系统在藻类生长,碳酸盐沉,性增强和在不同二氧化碳度和催化剂剂量下总碳捕获方面的性能.
主要方法:
- 创建了一个新的生物混合系统,使用微藻Chlorella vulgaris和CA@fZnMOF-5封装在酸盐珠中.
- 实验的二氧化碳度在0.04%至15%之间,催化剂剂量在0.5至2.0gL-1.1之间进行.
- 测量的主要参数包括生物质生产,CaCO3降水,性,总碳捕获和矿物成分 (XRD,FTIR).
主要成果:
- 生物混合系统显著增强了二氧化碳的水分,从而增加了二碳酸盐的可用性,藻类的生长和CaCO3矿化.
- 在5%的CO2下,该系统实现了高产量:1438.48毫克L-1生物质,330.74毫克L-1CaCO3,1978毫克L-1性和4941.15毫克L-1总碳捕获.
- 优化的催化剂加载稳定了pH值并支持碳酸盐的形成,而二氧化碳度超过10%导致有害的酸化. 证实了石和阿拉贡石的多态性.
结论:
- 开发的CA@fZnMOF-5封装酸盐珠有效地加速CO2水合并促进MAICP,增强光合作用和矿物沉.
- 这种生物混合方法代表了可扩展的,基于海洋的二氧化碳捕获和性增强的有希望的途径.
- 生物模拟催化与MAICP的整合为缓解气候变化提供了一个新的战略.
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