Method for conditioning and promoting excess sludge to produce methane through sodium ferrous chlorophyllin

The invention belongs to the field of sludge treating, handling and recycling, and discloses a method for conditioning and promoting excess sludge to produce methane through sodium ferrous chlorophyllin. The method comprises the following steps: conditioning the excess sludge through the sodium ferrous chlorophyllin; inoculating anaerobion to the conditioned excess sludge; and performing anaerobicdigestion under intermediate temperature condition of 30-45 DEG C to produce methane. The method optimally comprises the following steps: conditioning the excess sludge through the sodium ferrous chlorophyllin, specifically adding the sodium ferrous chlorophyllin to the excess sludge, stirring until the sodium ferrous chlorophyllin is completely dissolved, then continuously adding an H2O2 solution, and continuously stirring for a period of time to achieve conditioning. According to the method, the sludge flocs can be promoted to decompose, and organic substances are released, so that macromolecular organics can be ox