期刊
JOURNAL OF WATER PROCESS ENGINEERING
卷 51, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jwpe.2022.103466
关键词
Antibiotic; Removal; Wastewater; Carbonation; Portlandite; Magnetite; Flow-through curves; Isotherms
Current wastewater treatment technologies struggle to remove antibiotics, leading to contamination of water sources. This study demonstrates that aqueous carbonation of portlandite can effectively remove commonly used antibiotics from water. Amoxicillin showed the highest removal efficiency (9.5 mg/g), followed by cefazoline (4.3 mg/g) and ceftriaxone (2.7 mg/g). Comparatively, nanomagnetite-interfacial Fenton reaction is more effective in removing amoxicillin (76.5 mg/g), but is slower and more complex chemically. Both methods show promise at the laboratory scale and can be implemented in wastewater treatment plants.
Current wastewater treatment technologies struggle to remove antibiotics from wastewaters, leading to contamination of surface and groundwater. Therefore, more effective and efficient processes for removing an-tibiotics from water are needed. The present study reports for the first time that three widely used antibiotics (amoxicillin, ceftriaxone, cefazoline) can be successfully removed from water under ambient conditions by using aqueous carbonation of portlandite. Breakthrough curves acquired from flow-through experiments and their respective removal isotherms were mainly used to determine quantitative equilibrium parameters. In this way, the removal of antibiotics using aqueous portlandite carbonation is very efficient for amoxicillin (9.5 mg/g), followed by cefazoline (4.3 mg/g) and ceftriaxone (2.7 mg/g). In a comparison perspective, nanomagnetite-interfacial Fenton reaction is more effective in removing amoxicillin (76.5 mg/g); however, the process is slower and chemically more complex. However, both investigated methods offer promising results at the labo-ratory scale and are technically feasible to be implemented in conventional and/or advanced wastewater treatment plants.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据