微藻和火的比较:生产,物理化学性质和环境应用
1Department of Environmental Engineering, Mokpo National University, 1666 Yongsan-Ro, Cheongye-Myeon, Muan-Gun, Jeollanam-Do, 58554, Republic of Korea.
Environmental science and pollution research international
|December 8, 2023
概括
通过水热碳化 (HTC) 生产的微藻,由于其功能组和吸附能力,对环境应用具有前景. 这种方法在经济上是可行的,可以在不干燥的情况下从湿微藻生产生物炭.
科学领域:
- 生物质转化和可再生能源的使用.
- 环境科学和环境修复
背景情况:
- 微藻生物质是第三代生物燃料的关键原料.
- 微藻衍生生物炭的特性和应用需要进一步研究.
- 水热碳化 (HTC) 和干热碳化 (DTC) 是生物炭生产的两个热化学过程.
研究的目的:
- 评估由HTC生产的微藻衍生酸盐的生产和物理化学特性.
- 为了比较DTC用于环境应用所产生的水炭和火炭.
- 评估微藻生物炭在土壤修改和环境修复中的潜力.
主要方法:
- 微藻生物炭是由Chlorella vulgaris使用HTC和DTC工艺生产的.
- 在碳化过程中,应用了各种温度条件.
- 分析了物理化学性质,包括pH值,灰含量,多孔性,表面积,功能群和吸附能力.
主要成果:
- 与水性炭相比,Pyrochar表现出更高的pH值,灰含量,多孔性和表面积.
- 碳化合物显示出含有氧的功能组的丰富性.
- 碳水化合物显示出明显更高的吸附能力比pyrochar.
结论:
- 通过HTC生产的微藻化因其表面功能组和吸附而适用于土壤修改和环境修复.
- HTC是一种经济可行的热化学工艺,用于在低温下从湿生物质中生产微藻生物炭,从而消除了干燥阶段的需要.
- 这项研究突出了微藻酸盐作为环境应用中宝贵材料的潜力.
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