Research On Wheat Straw To Adsorption Of Nitrobenzene And Aniline

China has rich resources of agricultural straw,but most of them did not receive a reasonable use.The discarded or burned directly leads to a number of issues of environmental pollution and safety accidents.More efficient use of straw,to alleviate human food and energy crisis and to accelerate the development of China's natural resources recycling and ease of great significance to the three agricultural issues.Moreover,excessive Nitrobenzene and Aniline in water body cause long-term water pollution and harm to human health.Therefore,this study use wheat straw for organic pollutant removal efficiency,agricultural straw will be able to remove the water as nitrobenzene,aniline and other organic matter in low-cost adsorbent,has a very important application value.In the laboratory through the static adsorption was studied on simulated wheat straw in the water nitrobenzene,aniline adsorption effects.The results showed that the wheat straw for nitrobenzene,aniline adsorption consistent laws.Wheat straw has a wide dosage range to ensure nitrobenzene,aniline good to remove,and The highest removal rate of up to 86%. Wheat straw to adsorption the water of nitrobenzene and aniline have more related to the initial concentration of solution.The higher the initial concentration of solution,the greater the initial adsorption rate and adsorption q_t with the initial concentration increases.When the initial concentration of nitrobenzene at 16ug/ml,wheat straw adsorption time and adsorption highest correlation coefficient for R=0.9442,is a significant positive correlation.When the initial concentration of aniline at 12ug/ml,wheat straw adsorption time and adsorption of the correlation coefficient R=0.9240,is a significant positive correlation.Wheat straw to the water nitrobenzene,aniline removal efficiency by the relatively large impact on pH,with pH increasing,the removal rate increases.Removal efficiency was less affected by temperature, which makes the practical application of wheat straw in the season can not be restricted. Wheat straw for fast removal of organic matter,can be in 60min to complete the adsorption process to reach adsorption equilibrium.Wheat straw are porous adsorbent,contains large quantities of organic carbon,component of nitrobenzene,aniline adsorption better,the main adsorption process for the physical adsorption...