机构地区: 华南理工大学
出 处: 《化工学报》 1997年第6期698-705,共8页
摘 要: 研究了臭氧在鼓泡塔中吸收时,水中溶解臭氧浓度随时间的变化规律以及pH值对它的影响。建立了臭氧吸收数学模型,可较准确地预测水中溶解臭氧浓度;同时基于稳态膜理论,提出了带有一个一级臭氧自分解反应和多个一级或二级臭氧氧化反应臭氧吸收过程的增强因子理论预测模型,与文献值比较,结果合理。 The ozone concentration in liquid phase vs. time during ozone absorption in water and the influence of pH value are studied. On the basis of the film theory a mathematical model is established to predict the ozone concentration in aqueous solution. The theoretical results are in agreement with the absorption data. Meanwhile, the transport phenomenon in ozone absorption is also studied. Analytical solutions are derived to predict enhancement factors in ozone absorption processes accompanied with ozone decomposition and a series of first or second order ozonation reactions. Compared with literature data the predicted results are reasonable.