Zero-valent iron (ZVI) activation of persulfate (PS) for oxidation of bentazon in water

Ascorbic acid/Fe0 composites as an effective persulfate activator for improving the degradation of rhodamine B

“…10 However, the biggest drawback of this technology is that it requires high concentrations of PS and Fe 0 dosages to achieve favorable activation performance, resulting in increased treatment cost and extra disposal, 14 ) solution was added into the FeSO 4 solution with electromagnetic stirring for 15 min. Aer intensive mixing, 100 mL of 1.5 M of KBH 4 solution was added dropwise into the mixture solution.…”

Degradação Do Herbicida Amicarbazona Através De Ativação De Persulfato Com Ferro De Valência Zero

“…Uma das principais vantagens da utilização do FVZ em vez de Fe(II) para ativar o persulfato é a capacidade do primeiro de gradualmente liberar Fe(II) ao longo do tempo, o que foi observado para as micro partículas. •-pelas quantidades em excesso de Fe 2+ , de acordo com a Equação 4, reduzindo a eficiência da degradação (Deng et al, 2014;Wei et al, 2016).…”

“…Resultados similares foram observados por Wei et al (2016), para os quais altas dosagens de FVZ diminuíram a eficiência da degradação de bentazon por PS/FVZ. Quanto ao efeito da concentração inicial de PS, a Figura 1 indica que a degradação de AMZ aumenta com o aumento da concentração inicial de PS, o que é esperado uma vez que mais radicais são gerados.…”

Assessment of Sulfate Radical-Based Advanced Oxidation Processes for Water and Wastewater Treatment: A Review

“…Nitrobenzene degradation by PMS activated with surface minerals, reached 87% and 42% of nitrobenzene removal when using hematite and goethite (iron-based minerals) but only 15% removal was achieved when Mn-based minerals were used [33]. Among iron-based catalysts, zero-valent iron nanoparticles have recently attracted the attention of several researchers, with the number of recently published articles being numerous [90][91][92][93]. Kang et al compared the efficiency of nano zerovalent iron (nZVI) for 1,4-Dioxane removal when activating PS and PMS, reaching 85% and 43% degradation respectively in 6 h [90].…”