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相关概念视频

Carbon Skeletons01:12

Carbon Skeletons

Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side chains...
The Bone Matrix01:18

The Bone Matrix

Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in acid or...

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相关实验视频

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Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect
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双接口工程骨炭种子用于酸结晶的双接口工程骨炭种子

Tao Liu1, Liang Luo1, Sihan Li1

  • 1Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; College of Environment and Ecology, Chongqing University, Chongqing 400044, China.

Water research
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PubMed
概括

来自骨的炭种子显著降低了废水中酸盐结晶的能量屏障. 这一创新使得使用自然存在的能够有效,可持续地去除,在固定床柱中实现高容量.

关键词:
骨质炭是指骨质炭的部分.酸是一种酸.接口 接口 接口 接口核动力 核动力 核动力 核动力酸盐的去除 酸盐的去除

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科学领域:

  • 环境科学 环境科学
  • 材料科学 材料科学 材料科学
  • 化学工程是化学工程的重要组成部分.

背景情况:

  • 传统的酸盐去除方法使用外部化学物质,引发了可持续性问题.
  • 结晶酸盐与自然存在的 (Ca2+) 是一个有前途的替代品,但面临着高核化能量障碍.
  • 高核化能量障碍 (∆G*) 阻碍了自发晶体形成,限制了效率.

研究的目的:

  • 开发一种新方法,有效地从二次废水中去除酸盐.
  • 为了克服高核化能量障碍在酸盐结晶使用工程种子.
  • 调查骨制炭作为可持续酸盐捕获材料的潜力.

主要方法:

  • 开发了来自骨的炭种子,以减少酸核化界面能量.
  • 设计了双接口 (骨炭-酸和骨炭液) 来降低核化能量障碍.
  • 使用带有骨炭的固定床柱来处理实际的二次废水并评估酸盐保留能力.

主要成果:

  • 来自骨的炭种子减少了71.1%的有效界面能量,使∆G*降低了41.5.5的因素.
  • 在近中性废水中实现了与高pH常规方法相比较的核化速率.
  • 证明了超过48.8g的酸盐保留能力 P/kg的骨炭超过20,000床体积.

结论:

  • 来自骨的焦炭种子有效地降低了核化能量障碍,使得高效,可持续的酸盐结晶成为可能.
  • 骨炭的独特结构优化了界面特性,以加速酸的形成.
  • 该技术为深层酸盐去除提供了一个可持续的,高容量的解决方案,具有广泛的全球适用性.