Dyeing wastewater treatment high-tech applications photochemical oxidation photochemical oxidation due to its mild reaction conditions (temperature, pressure), the oxidation ability and speed and so on. Photochemical oxidation decomposition can be divided into light, the photosensitive oxidation, light excitation oxidation and photocatalytic oxidation four. Current research and the application of more photocatalytic oxidation. Photocatalytic oxidation technology can effectively destroy the structural stability of many biological refractory organic pollutants, with energy efficient, complete degradation of pollutants, etc. efficient PAC, almost all of the organic matter in the light catalysis can be completely oxidized to CO2 , H2O and other simple inorganic substances. But the photocatalytic oxidation of high concentration wastewater treatment effect is not ideal. Study on the photocatalytic degradation of dye focused on research of the photocatalyst. Wherein, TiO2 chemically stable, insoluble, non-toxic, low cost, is the ideal photocatalyst. Traditional TiO2 photocatalytic powder type because of the difficulties and is not suitable for flow separation system and other shortcomings, it is difficult to apply in practice. In recent years, TiO2 photocatalyst doped of the modified technology has become a hot research. Sun Liu et al [28] studied the properties of TiO2 Photocatalytic Degradation of Acid Red B-doped lanthanum. The new WU et al [29] studied the copper-tin TiO2 photocatalytic oxidation and reduction Modified Nano.孙剑辉 et al [30] studied the application doped TiO2 in refractory wastewater treatment. Ferric chloride (PAFC) is made of aluminum and iron salts coagulation hydrolysis of an inorganic polymer coagulant PAC, according to the principle of synergy, added elemental iron or iron oxide and other iron three complex compound prepared a new and effective coagulant obtained. PAFC performance and benefits mainly as follows: PAC iron (ferric coagulant complex) set the respective advantages of aluminum and iron salts PAC Low of aluminum ions and iron ions form has obviously improved greatly enhance the degree of polymerization. Take aluminum, iron coagulant their flotation operation advantageous to improve the performance of PAC coagulation; PAC iron (ferric coagulant complex) purifying high turbidity water and low temperature and low turbidity treatment effect was particularly evident, alkaline additives may increase or other coagulant. Efficient PAC, PAC Zhijiang, Saatchi Saatchi water provided by the water purification materials Co., Ltd., Henan. Spirit Henan water purification Material Co., Ltd. (www.gyssjs.com) strong, credible, in Zhengzhou, Henan water treatment chemicals and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Spirit into the brilliant water and you work for a better future!