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排序方式: 共有143条查询结果,搜索用时 15 毫秒
141.
Ashish Mohod Priscila H. Palharim Bruno Ramos Paulo F. Moreira Antonio Carlos S. C. Teixeira Reinaldo Giudici 《环境质量管理》2023,33(1):377-391
Hydrodynamic cavitation (HC)-based treatments have been proposed for the degradation of phenol as a toxic pollutant. The present work aimed to optimize the degradation of phenol using HC by means of Doehlert experimental design, which has not been previously addressed. Initially, operational parameters of hydraulic characteristics of the pump, inlet pressure, solution pH, and initial concentration were optimized; later, the effects of pH solution and H2O2 loading or initial pollutant concentration on phenol degradation were explored using the Doehlert experimental design. It was observed that phenol degradation is strongly dependent on the pH of the solution. Also, the acidic condition favors the formation of hydroxyl radicals and thus, the degradation of phenol. Based on the Doehlert matrix, the 94.1% phenol degradation and 68.60% total organic carbon (TOC) were obtained in 180 min at 304.5 mg/L of hydrogen peroxide at an initial concentration of 20 mg/L, 2.0 pH, and 90 psi inlet pressure, providing a cavitational yield of 6.33 × 10−6 mg/J and minimum treatment cost of US$/L 0.13. Overall, it has been observed that HC can be a promising route for the removal of pollutants (phenol) effectively using hydrogen peroxide as an additive. 相似文献
142.
de Araújo Gusmão Carolina Palharim Priscila Hasse Ramos Bruno Teixeira Antonio Carlos Silva Costa 《Environmental science and pollution research international》2022,29(28):42215-42230
Environmental Science and Pollution Research - Catalyst samples based on SiO2-supported TiO2 were prepared with the incorporation of Ag (metal), S (nonmetal), and ZnO@S (semiconductor and... 相似文献
143.
da Silva Barbosa Ferreira Eduardo Luna Carlos Bruno Barreto Siqueira Danilo Diniz Araújo Edcleide Maria de França Danyelle Campos Wellen Renate Maria Ramos 《Journal of Polymers and the Environment》2022,30(2):541-554
Journal of Polymers and the Environment - PLA has aroused industrial and scientific interest in recent years, mainly due to its biodegradable character. However, PLA is brittle and displays low... 相似文献