相关实验视频
Updated: Jul 12, 2025
06:00
Determination of the Settling Rate of Clay/Cyanobacterial Floccules
Published on: June 11, 2018
7.0K
立即和可逆的Scenedesmus花通过奇托和香复杂化
Lei Xu1, Qijia Cai2, Xiang Liu1
1Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Bioresource technology
|October 21, 2023
概括
使用奇托 (CTS) 和香 (XG) 的新型花法使得Scenedesmus快速收获. 这种可逆的工艺实现了超过95%的效率,并允许积剂回收,降低成本.
科学领域:
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 微藻收获对于生物燃料和生物产品应用至关重要.
- 传统方法经常面临效率,成本和可扩展性方面的挑战.
- 开发高效和可逆收获技术对于可持续的微藻种植至关重要.
研究的目的:
- 开发用于Scenedesmus收获的瞬间和可逆花法.
- 调查 (CTS) 和香 (XG) 作为二进制花剂的使用情况.
- 优化花条件并评估花剂的回收.
主要方法:
- 针对Scenedesmus微藻,使用了基托 (CTS) 和香 (XG) 的二进制花剂系统.
- 应用快速动以诱导花和随后选用于收获.
- 使用性 (pH > 11) 和 NaCl 溶液 (> 1.5 mol/L) 进行了研究.
- 通过调整pH,分析了CTS和XG的恢复.
主要成果:
- 在20秒内使用4 mg/L CTS和16 mg/L XG,获得了厘米大小的Scenedesmus.
- 超过95%的收获效率与500μm孔大小的.
- 在性或高NaCl溶液中证明了完全的花分解.
- 回收了50%的CTS和75%的XG,降低了生物质的花剂含量和试剂成本.
结论:
- 奇托桑-桑坦复合物为Scenedesmus收获提供了一种有效,快速和可逆的方法.
- 由静电相互作用驱动的多电解质复合物 (PEC) 形成机制促进了高效的花.
- 这种方法为微藻生物质回收提供了具有成本效益和可持续性的解决方案.
相关概念视频
01:06Coagulation
312
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
312
01:09Colloidal precipitates
596
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
596
03:22Colloids
17.5K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
17.5K