相关实验视频

Updated: Jul 5, 2025

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Published on: October 15, 2015

在不同硫酸盐水平下,复合有机修改对Cd (II) 离子稳定和微生物活性的影响

Tianlin Miao¹, Zonghui Jin², Linghui Kong²

¹College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China; College of Biology and Agriculture, Jiamusi University, Jiamusi, 154002, China.

Environmental research

|January 15, 2024

概括

应用复合有机修改剂有效地修复了被污染的土壤,即使使用过多的肥. 这种方法改善了土壤的pH值,减少了的可用性,并促进了微生物活动,从而改善了土壤的健康.

科学领域:

环境科学环境科学
土壤科学土壤科学
农业化学农业化学

背景情况:

在温室中过度使用肥可以导致土壤质量恶化和污染.
(Cd) 污染对土壤健康和潜在的农业生产力构成风险.

研究的目的:

为了评估复合有机修改剂 (花费基质及其生物炭) 在不同 (N) 肥水平下修复污染的土壤的有效性.
调查修正案对土壤特性,可用性和微生物群落的影响.

主要方法:

从消耗的基质及其生物炭中制备复合有机修正剂.
修正案适用于不同肥率 (0.1至0.8克N·kg-1) 的污染土壤 (0.6毫克/千克).
分析了土壤pH值,可交换的Cd (II) 离子,微生物生物质和大量的氨氧化细菌 (AOB) 基因.

主要成果:

在没有修改的情况下,增加的N水平降低了土壤pH值.
随着复合有机修订,土壤pH值显著增加 (0.86-0.91).
可交换的Cd(II) 离子减少了26.0%-26.7%,微生物生物量增加了34.34%-164.46%,AOB基因拷贝随着修改和增加N的水平而增加了13-20倍.

结论:

复合有机修改剂有效地修复了被污染的土壤,减轻了过度肥的负面影响.
该修正案改善了土壤特性,降低了的生物可用性,并增强了土壤微生物活动和循环.
该战略为密集农业系统的可持续土壤管理提供了一个有希望的解决方案.

关键词:

生物炭是一种生物炭.污染污染污染微生物生物质的生物质.化肥是一种化肥.消费基板的使用

更多相关视频

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Published on: January 22, 2015

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

相关概念视频

EDTA: Auxiliary Complexing Reagents

EDTA: Auxiliary Complexing Reagents

EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...

Common Ion Effect

Common Ion Effect

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide: