Pplied Basic Research Fiberglass Load Titanium Dioxide Photocatalytic Treatment Of Humic Acid

Humic acid and its derivatives in water sources can account for more than half of the organic matter in water. Humic acid in natural water bodies through a series of chemical changes and physical deposition can produce objectionable color and odor. Meanwhile, when the source water containing humic acid, after chlorination of drinking water plant in the process, it can be combined with a disinfectant, resulting in a variety of toxic byproducts, therefore, become the source water and drinking humic strict control of water pollutants. Because of all the advantages of photocatalytic technology, making it more research approach water pollutants.In this paper, with good light transmission properties of glass fiber as a photocatalyst carrier by sol- gel method on glass fiber nano-TiO2 thin films prepared with a load characteristics TiO2 photocatalyst for the degradation of humic acids conduct simulation studies in the laboratory to find a reasonable, simple and efficient way to effectively remove water humic acid, the main contents are as follows: Preparation and characterization of titanium dioxide fillers, titanium dioxide, under different conditions of humic acid degradation processes and efficiency, the degradation rate and effect analysis.By discussing the current load of different methods of titanium dioxide, comparative advantages and disadvantages of different load technology, and ultimately determine the titania supported on glass fiber can achieve good results, and comparison of the number of times under different loads and different baking temperatures different properties of the obtained filler. By scanning electron microscopy, surface area analysis, and X-ray diffraction, and ultimately determine the optimal performance of the catalyst packing.By UV spectrophotometer, through catalytic degradation of humic acid concentration were measured after discussed under different reaction conditions, such as the initial concentration of humic acid solution,the pH of the solution during the reaction, the UV light intensity, air circulation and other effects on the reaction rate and removal efficiency. Experimental results show that the initial concentration of 10 mg / L of humic acid solution, to improve the light intensity can promote the decomposition of the humic acid;the lower the pH of the solution, the faster the reaction rate, the better the removal of humic acid, pH more high, under the strong alkaline conditions, humic acid removal efficiency is greatly reduced; the higher the air circulation,the reaction has been accelerated, but little impact.Finally, by comparing the findings of other researchers, can be found, the application of nano-TiO2 photocatalytic technology is very extensive, currently for containing various harmful inorganic and organic industrial waste, agricultural waste, domestic wastewater, printing and dyeing wastewater and so can use of nano-TiO2 photocatalytic technology for processing. Photocatalytic oxidation Wastewater treatment, for the protection of the environment, maintaining ecological balance, to achieve sustainable development of great significance.