Modification of Nano-Titanium Dioxide Film and Processing Experimental Study of Tannery Waste Water
This paper was prepared by liquid phase deposition of quartz sand load nanometer titanium dioxide film, in which quartz sand as the carrier, and to Fe3+,Zn2+ as doping on the membrane was modified. The initial value of pH is 6.7,in this condition, select the heating temperature, the doping ratio of Fe3+andZn2+ to design the orthogonal experiment. CODCr removal and pH value as the evaluate index, to deal with the real tannery wastewater, discussed when Fe3+,Zn2+ co-doping, the best doping ratio of them, the best technical conditions such as heat treatment temperature; and their affect on CODCr removal rate and pH value.Under the optimum conditions, confirmed by further study that Fe3+ doped titanium dioxide modified membrane absorption band red shifts, the utilization of solar is increased, the tannery wastewater which was treated by modified membrane, its biodegradability is greatly increased.
P. Y. Xu et al., "Modification of Nano-Titanium Dioxide Film and Processing Experimental Study of Tannery Waste Water", Advanced Materials Research, Vols. 383-390, pp. 6391-6395, 2012