Method for treating heavy metals in livestock and poultry manure

The invention relates to environment-friendly treatment of poultry manure, in particular to a method for treating heavy metals in poultry manure, which comprises the following steps: fully collecting manure with the ts concentration of 6%, carrying out anaerobic fermentation, acidifying mixed biogas slurry by using a leaching agent, adding electrode plates at two ends of a fermentation tank, and carrying out electrolysis and microorganism combination to obtain the heavy metals in the poultry manure. The method comprises the following steps: firstly, adding a heavy metal into the fermentation broth to improve the transformation of the form of metal ions, then adding a passivator which adopts an organic and inorganic combined substance and is used for carrying out a coordination reaction with the heavy metal to enhance the removal rate of the heavy metal in the manure, and finally, adding a proper regulator in the process to regulate the pH value of the fermentation broth and improve the dehydration property of