Method for strengthened hydrolytic acidification of chemical industry wastewater

The invention provides a method for strengthened hydrolytic acidification of chemical industry wastewater. The method is characterized by comprising the following steps: (1) detecting the pH value of the chemical industry wastewater, directly going to the next step if the pH value is 4.5-9.5, and adjusting the pH value to 4.5-9.5 if the pH value is not 4.5-9.5; (2) injecting the chemical industry wastewater into a strengthened hydrolytic acidification reactor containing hydrolytic acidification bacteria and polymetal catalytic contact filler, and carrying out strengthened hydrolytic acidification reaction under the conditions of aerating and stirring; and (3) after the reaction ends, adding a flocculant for flocculating settling for obtaining supernatant, detecting a B/C value, returning to the step (2) if the B/C value does not reach the standards, and going to subsequent aerobic biochemical reaction after the B/C value reaches the standards. According to the method provided by the invention, a strengthened hydrolytic acidification filler bag is added into the traditional hydrolytic acidification system and can carry out micro-electrolysis under acidic conditions, so that the removal of difficultly-degradable substances is facilitated, hydrolytic acidification is facilitated, the B/C value of yielding water can reach 0.3-0.6, and the removal ratio of COD (Chemical Oxygen Demand) can reach over 35%.