用兰修改的泥生物炭用于地热水的化物清除
Wei Li1, Yi Wu1, Ruiqing Huang1
1School of Ecology and Environment, Tibet University, Lhasa 850012, China.
Materials (Basel, Switzerland)
|April 24, 2025
概括
用兰改性污泥衍生生物炭 (La-SBC-700) 有效地从废水和地热水中去除化物. 这种富有资源的污泥利用方法的吸附能力比未经修改的生物炭高10倍.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 城市污泥带来了处理方面的挑战.
- 水源中的化物污染是一个重大的环境问题.
- 开发具有成本效益的吸附剂来去除化物至关重要.
研究的目的:
- 合成和优化改污泥衍生生物炭 (La-SBC-700) 用于化物去除.
- 研究La-SBC-700的吸附机制和性能.
- 评估La-SBC-700在实际地热水中的应用潜力.
主要方法:
- 市政污泥被烧解以产生污泥衍生生物炭 (SBC).
- 用酸修改了SBC,通过直角实验确定了最佳条件.
- 进行了批量吸附实验,以评估在各种条件下 (pH,度,剂量,共存离子) 的化物去除效率.
主要成果:
- 优化的La-SBC-700与SBC相比,化物吸附能力增加了10倍.
- 理论上最大的吸附能力达到40.338mg/g,遵循近次序动力学和兰木尔异热模型.
- 在pH范围5.08.0中观察到有效的化物去除,La-SBC-700在真实地热水中表现出色.
结论:
- 拉-SBC-700是一种高效的吸附剂,用于从废水和地热水中去除化物.
- 修改污泥衍生生物炭为污泥利用和水净化提供了一种可持续的方法.
- 这项研究提供了一种有希望的方法来解决化物污染问题,并促进从污泥中回收资源.
相关概念视频
Factors Affecting Solubility
32.2K
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:
32.2K
Microbial Bioremediation of Uranium
103
Microorganisms play a critical role in the transformation and immobilization of uranium in contaminated environments through four main pathways: bioreduction, biosorption, bioaccumulation, and biomineralization. These mechanisms reduce uranium’s toxicity and prevent its migration through groundwater systems, offering sustainable approaches for in situ bioremediation.Bioreduction of UraniumBioreduction is driven by anaerobic bacteria such as certain strains of Geobacter and Shewanella,...
103
Microbial Leaching
227
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...
227


