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超临界水氧化法处理造纸废水的初步研究 总被引:24,自引:0,他引:24
利用超临界水反应系统,在250~440℃和20~24MPa的条件下,研究了造纸放心水在超临界水中的氧化分解反应。考察了反应温度、氧化剂浓度对造纸废水的降解反应的影响。经处理造纸废水的TOC去除率可达99%。 相似文献
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Microscopic structure and diffusion properties of benzene in ambient water (298 K, 0.1 MPa) and supercritical water (673--773 K, 25---35 MPa) are investigated by molecular dynamics simulation with site-site models.It is found that at the ambient condition, the water molecules surrounding a benzene molecule form a hydrogen bond network. The hydrogen bond interaction between supercritical water molecules decreases dramatically under supercritical conditions. The diffusion coefficients of both the solute molecule and solvent molecule at supercritical conditions increase by 30---180 times than those at the ambient condition. With the temperature approaching the critical temperature, the change of diffusion coefficient with pressure becomes pronounced. 相似文献
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