相关实验视频

Updated: Jun 29, 2025

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Published on: July 10, 2015

由微藻和细菌在富含营养的废水中生长的铜和生物移除机制

Beatriz Antolín¹, Alba Torres², Pedro A García³

¹Institute of Sustainable Processes, University of Valladolid, 47011 Valladolid, Spain; Department of Analytical Chemistry, Faculty of Sciences, Campus Miguel Delibes, University of Valladolid, 47011 Valladolid, Spain.

|March 30, 2024

概括

微藻和活性污泥通过生物吸收有效地从猪废水中去除铜和. 这一过程促进了生物质利用和安全生物制品的创造.

科学领域:

环境微生物学环境微生物学
生物技术是生物技术.
废水处理废水处理

背景情况:

猪的废水含有大量的营养物质和金属,如来自料添加剂的铜 (Cu) 和 (Zn).
生物质中金属的保留可以阻碍其后续使用,需要有效的去除策略.
光生物反应器为猪废水处理提供了一个有前途的解决方案,利用共生微藻和细菌去除营养和金属.

研究的目的:

通过微藻 (Scenedesmus almeriensis) 和光生物反应器中的活性污泥来研究Cu (II) 和Zn (II) 的去除机制.
评估这些微生物在从合成猪废水中去除金属的效率.
确定金属结合机制对生物质价值化的影响.

主要方法:

在含100mg/LCu和Zn的合成废水中种植Scenedesmus almeriensis和活性污泥.
在72小时处理后分析金属去除百分比.
单次和连续提取的应用,以确定金属结合点和机制.
使用富里埃变换红外光谱 (FTIR) 和环境扫描电子显微镜与能量分散式X射线光谱 (ESEM-EDX) 进行机械分析.

主要成果:

Scenedesmus almeriensis清除了43%的和45%的;活性污泥清除了78%的和96%的.
生物吸收到质子群被确定为和的主要去除机制.
温和的试剂溶解了大量来自生物质的金属 (69-94% Cu,93-94% Zn),表明表面结合.
细胞内部分的金属度较低表明生物积累最小.

结论:

生物吸收,特别是通过离子交换和复合,是微藻和活性污泥去除和的主要机制.
生物吸收金属的弱结合促进了生物质的价值化和安全生物制品的生产.
使用微藻和细菌的光生物反应器在处理猪废水和回收金属方面是有效的.

关键词:

活性污泥活动污泥生物修复是一种生物修复.重金属是一种重金属.金属的可用性金属的可用性.金属的分化方法是金属的分化方法.这就是Scenedesmus almeriensis.

更多相关视频

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater

Published on: March 6, 2017

Author Spotlight: Scaling Microalgal Biotechnology for Enhanced Biomethane Production

Author Spotlight: Scaling Microalgal Biotechnology for Enhanced Biomethane Production

Published on: March 22, 2024

相关概念视频

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...