利用干燥的菌株膜,快速有效地清除土壤中的
Mruganka Sandip Parasnis1, Anna Paltseva2, Katarzyna Kordas3
1Department of Materials Design and Innovation, University at Buffalo, NY, 14260, USA.
Chemosphere
|September 9, 2025
概括
干燥的菌根膜有效地修复城市土壤中的 (Pb) 污染,在8天内去除高达80%的. 这种环保的生物吸收剂可以物理回收,最大限度地减少长期的环境风险.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 土壤中的重金属污染对环境构成重大风险.
- 生物修复提供了一个可持续的解决方案,但面临着诸如缓慢的动力学和高成本等挑战.
- 干燥的菌膜显示了有效去除重金属的潜力.
研究的目的:
- 评价干燥的菌根膜作为在城市土壤中的现场 (Pb(II)) 整治的生物吸收剂.
- 为了研究未经处理和酸盐功能化 (PF) 菌膜的性能.
- 了解Pb的机制和动力学由体膜吸收Pb.
主要方法:
- 在含的城市土壤中部署未经处理和PF菌根膜.
- 在不同度和pH值下分析Pb (II) 去除效率.
- 使用红外光谱和X射线衍射的吸附机制的表征.
- 动态建模以确定修复率和机制.
主要成果:
- 在8天内,未经处理的膜在100毫克/公斤下达到~70%的Pb (II) 清除,在1500毫克/公斤下达到~40%.
- 即使在1500毫克/公斤和pH值为4.0的情况下,PF膜的提升去除率达到70-80%.
- 吸附机制涉及静电相互作用和矿化 (PF膜).
- 在较低度观察到伪二次动力学;在更高度观察到PF膜的粒子内扩散.
结论:
- 干膜是有效的,环保的生物吸收剂,用于城市土壤中的整治.
- PF修改显著提高了Pb (II) 清除效率,并扩大了操作条件.
- 获取固定的能力为降低风险提供了独特的优势.
更多相关视频
08:21Isolation and Screening from Soil Biodiversity for Fungi Involved in the Degradation of Recalcitrant Materials
Published on: May 16, 2022
5.7K
09:39Production and Testing of Moisture Behavior and Thermal Properties of Rapeseed Straw and Ganoderma resinaceum Mycelium Bio-Composites
Published on: September 5, 2025
595
相关概念视频
Bioremediation
23.0K
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.
23.0K
Microbial Leaching
90
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
90
