Treatment of emerging contaminants in simulated wastewater via tandem photo-Fenton-like reaction and nutrient recovery
Treatment of emerging contaminants in simulated wastewater via tandem photo-Fenton-like reaction and nutrient recovery
复制标题
通过串联类光芬顿反应和营养物回收处理模拟废水中的新污染物
DOI：
10.1039/d2ew00209d
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Baltrusaitis, Jonas
中科院分区：
文献类型：
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作者：
Silva, Manoj;Eisa, Mohamed;Ragauskaitė, Dovilė;McMinn, Madison H.;Tian, Zhenyu;Williams, Clinton;Knopf, Allan;Zhang, Lihua;Baltrusaitis, Jonas
A tandem strategy that recovers NH4+ and PO43− nutrients from simulated wastewater in a solid form after the Fenton oxidation of emerging organic contaminants was developed. Mesoporous Cu–MgO nanoparticles were used as a photo-Fenton-like catalyst to oxidize paraoxon and tetracycline present in nutrient-rich simulated wastewater to prevent their incorporation into the struvite product. Mesoporous MgO nanoparticles were subsequently used as the Mg-source for the struvite crystallization due to the fast intraparticle diffusion and adsorption kinetics facilitated by their porosity and the high surface area. Without Fenton oxidation, 13% of paraoxon and 37% of tetracycline were incorporated into the struvite, demonstrating the clear need for the removal of hazardous contaminants before struvite synthesis. Both organic contaminants were eliminated using the Fenton oxidation reaction, with some minor non-toxic intermediate products formed. The product formed after the tandem process was shown by XRD and Raman spectroscopy to be struvite free of the emerging organic contaminants.
