相关实验视频

Updated: Jun 27, 2025

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium

Published on: December 17, 2018

通过生物制造的硫从废水中去除Hg的机械证据

Seok-Soon Jeong¹, Byung-Jun Park¹, Jung-Hwan Yoon¹

¹Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea.

|April 26, 2024

概括

生物制造的硫 (BPS) 有效地从废水中去除 (Hg²⁺). 这种可持续的吸附剂显示出高容量和强大的保留能力,提供了一种新的环境解决方案.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
吸附科学吸附科学

背景情况:

生物制造的硫 (BPS) 是垃圾填埋气体处理的副产品.
有限的研究存在于环保应用的BPS上循环.
水中的 (Hg²⁺) 污染对环境和健康构成重大风险.

研究的目的:

为了研究BPS作为Hg2+去除吸附剂的有效性.
阐明Hg²⁺在BPS上的吸附机制.
为了评估BPS在水溶液和真实废水中的性能.

主要方法:

表面表征 (XPS,SEM). 表面表征 (XPS,SEM). 表面表征 (XPS,SEM). 表面表征 (XPS,SEM). 表面表征 (XPS,SEM). 表面表征 (XPS,SEM). 表面表征 (XPS,SEM). 表面表征 (XPS,SEM).
吸附异温,动力学和热力学研究.
使用强酸进行脱试验.
废水处理与共存金属的实验.

主要成果:

在Langmuir模型下,BPS表现出高的Hg2+吸附能力 (244mgg-1).
Hg2+的去除涉及与表面硫化物复合,形成稳定的HgS.
吸附是快速的 (75%在5分钟内去除) 和自发/内热.
观察到强大的Hg保留 (<0.2%脱吸) 和对其他金属的选择性.

结论:

BPS是一种高效和稳定的吸附剂,用于Hg2+的去除.
该机制涉及在BPS表面强烈的HgS形成.
BPS显示了废水整治和资源回收的巨大潜力.

关键词:

吸附吸附是一种吸附.生物制造的硫是生物制造的硫.运动学的动力学.这是一个机制机制.消除的方法消除的方法

更多相关视频

Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron OxyHydroxides, Trace Elements, and Bacteria

Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron OxyHydroxides, Trace Elements, and Bacteria

Published on: December 19, 2017

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

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.

The Sulfur Cycle

The Sulfur Cycle

Sulfur, an important element in the chemical makeup of proteins, is recycled through the atmosphere and aquatic and terrestrial environments. Found in the atmosphere as sulfur dioxide (SO2), sulfur is released by decaying organisms, weathered rocks, geothermal vents, volcanos, and burning fossil fuels. It is deposited into the ecosystem, cycled through the biotic community, and either released back into the atmosphere as gas or deposited in marine sediment for long-term storage and eventual...

Factors Affecting Solubility

Factors Affecting Solubility

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 Chȃtelier’s principle. Consider the dissolution of silver iodide:

The Scientific Method

The Scientific Method

Chemistry is an empirical science. Scientists often pose questions to understand the chemistry in everyday life and seek answers to these questions. To achieve this, scientists follow a definitive series of steps that together make up the Scientific Method. This approach involves making observations, asking questions, building a hypothesis, conducting experiments, analyzing results, and forming a conclusion.

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...