化工英语翻译

1. Pentachlorophenol on the yellow soil in three different soil depth of the absorption of static and dynamic adsorption and desorption dynamic and thermodynamic equation and use dynamic equations describing its absorption characteristics. The results showed that: three different soil depth of pentachlorophenol a certain absorption capacity in 90 min to reach equilibrium, the leaching of saturated absorption capacity of 50 μ g / g, deposition of the absorption capacity of saturated adsorption Capacity of 43.48 μ g / g, quality of the mother for 40 μ g / g, Freundilich adsorption isotherm can be used to describe the yellow soil PCP on the adsorption of. When the pH value of less than 5, when the acid soil, the soil of pentachlorophenol adsorption with pH values decrease with the increase. Ionic strength of the increase will raise the soil pentachlorophenol the loading capacity. Dynamic adsorption experiments, the soil by 5 μ g / mL of pentachlorophenol solution leaching, the leaching of soil layer in the adsorption time for 400 min, leaching solution volume of 750 mL, adsorption achieve balance in the deposition of the adsorption time for 510 min, Leaching solution volume of 850 mL, adsorption achieve balance in the absorption of the mother of time for 550 min, leaching solution volume of 950 mL, adsorption balanced. Dynamic desorption experiment, to continue to use tap water leaching of soil, soil in the leaching of desorption time 820 min, leaching solution volume of 400 mL, desorption achieve balance in the deposition of desorption time for the 1135 min, leaching solution volume of 500 mL, , Desorption achieve balance in the dissolution of desorption time for the 1450 min, leaching solution volume of 550 mL, desorption balanced.
2. The study of pentachlorophenol in the solution of activated carbon on the static and dynamic adsorption behavior. The results showed that: activated carbon to pentachlorophenol a good absorption properties, in 90 min to reach equilibrium, static saturated absorption capacity of 32.3 mg / g. The experiment within the framework of equilibrium and relations with Freundilich Langmuir isotherm, the correlation coefficient of 0.981 and 0.984 respectively. pH value in the range of 5 to 11 had no effect on the absorption capacity. Dynamic experiments, 2.5 g activated carbon-loaded by 40 μ g / mL pentachlorophenol dynamic adsorption, the outflow of fluid volume of 630 mL, the activated carbon adsorption basically saturated. Different concentrations of pentachlorophenol solution, the higher the rate of absorption of the smaller, the slower the flow rate, the higher the rate of absorption, the highest absorption rate of up to 100%.
3. The study of pentachlorophenol solution in the HDX-8 macroporous resin on the static and dynamic adsorption and desorption. The results showed that: 70 min to reach equilibrium, passive absorption of saturated solution to 7.351 mg / L, such as adsorption isotherm with Freundlich and Langmuir isotherm, the correlation coefficient of 0.99 in all the above. 1mol / L NaOH solution as a static test of desorption, desorption rate of 77 percent, the balance of desorption time 120 min. Adsorption solution in the dynamic test the concentration of smaller, the smaller the flow rate, the higher the rate of absorption, the highest absorption rate of 99.56 percent. Dynamic desorption with 1 mol / L NaOH solution to 0.5 mL / min flow rate of desorption, desorption the best, desorption rate can reach 96 percent or more.