使用氧化微生物和回收地毯纤维的过渡金属回收
Brandy D Stewart1, Sharon E Bone2, Cara M Santelli1,3
1Earth and Environmental Sciences, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States.
Environmental science & technology
|September 9, 2025
概括
氧化的真菌和回收的地毯纤维提供了一个可持续的解决方案,用于从矿山废水中隔离转变金属,如Mn,Co,Cu和Ni. 这种环保的方法提高了金属回收,减少了对环境的影响.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 采矿需要对金属影响的废物流进行具有成本效益和环保的整治策略.
- 通过吸附和氧化还原反应进行微生物介导的金属去除是一种有前途的生物修复方法.
研究的目的:
- 研究使用来自高盐度矿山环境的Mn氧化真菌来隔离过渡金属 (Mn,Co,Cu,Ni).
- 评估回收地毯纤维在支持真菌生物质和增强金属氧化和封存方面的有效性.
主要方法:
- 从苏丹地下矿山国家公园中分离了氧化的真菌.
- 在回收的地毯纤维上种植真菌,以促进生物质的生长和二氧化.
- 用混合金属溶液 (Mn,Co,Cu,Ni) 进行化,以评估封存效率.
主要成果:
- 回收的地毯纤维显著增强了真菌生物质和二氧化率,形成了二氧化物.
- 在纤维的存在下,金属封存量增加了6倍的Mn和3倍的Co.
- 该系统在从水溶液中去除Co (含纤维) 和Co/Cu (不含纤维) 方面表现出高效率.
结论:
- 回收地毯纤维有效支持微生物介导的金属修复,改善矿山废水中的过渡金属的封存.
- 这一战略提供了环境修复和从废物流中潜在的资源回收的双重好处.
- 使用废物材料,如地毯纤维,是一种可持续且具有成本效益的生物修复解决方案.
更多相关视频
05:52Resource Recycling of Red Soil to Synthesize Fe2O3/FAU-type Zeolite Composite Material for Heavy Metal Removal
Published on: June 2, 2022
3.3K
11:14Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
12.8K
相关概念视频
Bioremediation
22.1K
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.
22.1K
Radical Oxidation of Allylic and Benzylic Alcohols
2.8K
Activated manganese(IV) oxide can selectively oxidize allylic and benzylic alcohols via a radical intermediate mechanism. Primary allylic alcohols are oxidized to aldehydes, while secondary allylic alcohols yield ketones. The redox reaction of potassium permanganate with an Mn(II) salt such as manganese sulfate (under either alkaline or acidic conditions), followed by thorough drying, yields the oxidizing agent: activated MnO2. While MnO2 is insoluble in the solvents used for the reaction, the...
2.8K
Environmental Applications of Microorganisms
995
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...
995
