来自四种不同的固体废物的生物炭的制备和表征及其安培素吸附性能
Junxin Yu1, Tianyu Gu1, Ruiying Wang1
1School of Civil and Environmental Engineering and Geography Science, Ningbo University, Ningbo, 315000, Zhejiang, China.
Environmental geochemistry and health
|September 24, 2024
概括
这项研究探讨了利用有机废物中的生物炭从水中去除抗生素安皮西林. 消化剂衍生生物炭 (DSB) 显示出最高的吸附能力,提供可持续的废物管理和水处理解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 废物管理 废物管理
背景情况:
- 新兴的污染物如安培 (AMP) 对水系统构成风险.
- 从有机废物生产生物炭 (BC) 是一种可持续的污染物去除方法.
- 对于抗生素吸附BC生产的无氧化消化剂的使用尚未得到充分研究.
研究的目的:
- 研究来自各种有机废物 (花生,咖啡粉,消化剂,贝) 的BC对AMP吸附的有效性.
- 描述产生的BC材料,并将其性能与吸附性能相关联.
- 为了评估吸附动力学,异热量和AMP去除的热力学.
主要方法:
- 通过热解产生生物炭,并使用热重力测量分析 (TGA) 优化温度.
- 使用BET,SEM,FTIR和XRD进行材料表征.
- 批量吸附实验以确定AMP去除效率,动力学,异热和热力学.
主要成果:
- 消化剂衍生生物炭 (DSB) 对AMP吸附具有优越的特性,包括更多的功能群,中孔结构和石晶体.
- 所有的BC材料都遵循弗洛伊德利希和兰格穆尔等热量和埃洛维奇动力学,表明混合的物理和化学吸附.
- 在150毫克剂量,pH2和60°C下,DSB达到53.81毫克g-1的最大吸附能力.
- 吸附过程是自发的和内热的.
结论:
- 有机废物衍生生物炭,特别是DSB,对安培去除有效.
- 这项研究为废物利用和水资源整治提供了一种新的方法.
- 这些发现支持选择合适的固体废物来开发高效的BC吸附剂.
更多相关视频
09:39Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites
Published on: November 28, 2014
35.1K
10:44Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis
Published on: February 12, 2019
9.9K
相关概念视频
01:24Carbonation Shrinkage
Atmospheric CO2 penetrates the concrete's pores and, in the presence of moisture, forms carbonic acid, which then reacts with calcium hydroxide in the hydrated cement, forming calcium carbonate. This process reduces the concrete's volume and is termed carbonation shrinkage.
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction facilitates the...
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction facilitates the...
01:30Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
01:25Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...