相关实验视频

Updated: Jan 12, 2026

Microbiologically Induced Calcite Precipitation Mediated by Sporosarcina pasteurii

Microbiologically Induced Calcite Precipitation Mediated by Sporosarcina pasteurii

Published on: April 16, 2016

微生物诱导的碳酸盐沉作为一种创新技术,可以实现高效的Sr2+生物修复

Zhimeng Su¹, Ting Chen², Fuchun Li³

¹College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Science, Guizhou Normal University, Guiyang 550001, China.

New biotechnology

|October 31, 2025

概括

微生物通过微生物诱导的碳酸盐沉 (MICP) 有效地固定了 (Sr2+) 和 (Ca2+). 细菌尿解驱动降水,使有毒元素的有效生物修复成为可能.

科学领域:

环境微生物学环境微生物学
生物修复是一种生物修复.
地质化学地质化学

背景情况:

微生物生物修复对 (Sr²⁺) 的去除有希望.
有效的生物 Sr2+ 固定化的机制尚未完全理解.

研究的目的:

通过*Sporosarcina pasteurii*使用微生物诱导碳酸盐沉 (MICP) 调查Sr²⁺固定的疗效和机制.
阐明细菌尿解和有机物在Sr2+和Ca2+沉中的作用.

主要方法:

使用*Sporosarcina pasteurii*进行模拟污染系统实验.
溶液化学分析,X射线衍射 (XRD),能量散射X射线光谱 (EDS),X射线光电子光谱 (XPS),里埃转换红外光谱 (FTIR) 和3D激发发射矩阵 (3D-EEM) 光光谱.

主要成果:

*Sporosarcina pasteurii* 在72小时内实现了>99.95%的Sr2+和Ca2+固定.
细菌尿解产生碳酸盐和二碳酸盐离子,导致高效的降水.
2+通过同态替代被纳入石和石,细菌有机物影响2+沉选择性.

结论:

微生物诱导碳酸盐沉 (MICP) 是Sr2+生物修复的有效策略.
细菌矿化能力克服了偏好的Ca2+降水,确保了高效的Sr2+固定.
这项研究为放射性污染的补救和微生物衍生的有机物质碳封存提供了洞察力.

关键词:

生物修复是一种生物修复.水晶格子晶格格子.微生物诱导的碳酸盐沉有机物质是有机物质的组成部分.是的组成部分.

更多相关视频

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal

Published on: November 10, 2023

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion

Published on: September 12, 2019

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.

Environmental Applications of Microorganisms

Environmental Applications of Microorganisms

Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...

Precipitation and Co-precipitation

Precipitation and Co-precipitation

Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...

Carbon-dioxide Fixation

Carbon-dioxide Fixation

Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...