TECHNOLOGY FOCUS - ENVIRONMENT - Preferred Method: The advanced oxidation treatment comprises introducing the water discharged from the aerobic treatment into an internal electrolytic bath filled with iron scraps and active carbon at a certain ratio so as to have an internal electrolysis reaction to further remove the chromaticity and chemical oxygen demand (COD), where the waste iron scraps are the base material for the internal electrolysis reaction and they form a macro-electrode with the active carbon; adding adequate oxidant to the water discharged from the internal electrolysis reaction to remove the chromaticity and COD through oxidation and sedimentation; adding saturated limewater to adjust the pH value of the wastewater to be neutral; and discharging the water at the standard after the coagulating sedimentation. The materializing pre-treatment comprises introducing the dye wastewater into an internal electrolytic bath filled with iron scraps and coke to further remove the chromaticity and COD; and adding saturated limewater to adjust the pH value of the wastewater to be neutral; then removing most of the sulfate, chromaticity and COD through coagulating sedimentation. The filling ratio of iron chips to the active carbon is 2: 1 by volume. Gas is automatically introduced to the internal electrolysis reaction for backwashing so as to keep the gas-water ratio to be 10: 1 to 20: 1. The coagulating sedimentation step in the materializing process further comprises adding poly(aluminum chloride) and polyacrylamide to strengthen the coagulating sedimentation. The pH value of the wastewater is adjusted to be 3-4 with waste acid before the internal electrolysis reaction of the advanced oxidation treatment; and then internal electrolysis reaction is conducted for 1-2 hours. After the pH value of the wastewater is adjusted to be neutral through addition of saturated limewater, polyacrylamide is added for 1-2 hours of sedimentation. In the anaerobic treatment, an up-flow anaerobic sludge bed is used; anaerobic granular sludge is inoculated for 4-6 months of anaerobic microbial domestication; engineered bacteria are added to the wastewater to remove the impact of ammonia-nitrogen and sulfide in the wastewater on the production of methane bacteria; and by use of a series of complex chemical and biological reactions of the anaerobic microbes, the chromaticity is removed and the water discharged from the anaerobic treatment is made to be more helpful to the degradation of aerobic microbes. The inoculated microbe is wastewater active sludge identical to the dye wastewater. The dissolved oxygen needed by the aerobic reaction is 3-5 mg/L. Between the materializing pre-treatment and anaerobic treatment, the wastewater is heated to 25-40 degrees C and the pH value is adjusted to 6.5-7.0; and after adequate trace element is added according to the water condition, the anaerobic treatment is carried out. The precipitated sludge produced in the coagulating sedimentation step and anaerobic treatment is pressed into sludge cakes and then transmitted to the outside.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The oxidant is 30% aqueous hydrogen peroxide at an addition amount of 1-2 ml/L for 2-3 hours of reaction.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The carrier used in the aerobic treatment is a polyurethane carrier that can fix the microbes.