Domestic garbage leachate reverse osmosis concentrated solution treatment method and treatment device

The invention discloses a treatment method and a treatment device for a reverse osmosis concentrated solution of household garbage leachate. The treatment method for the reverse osmosis concentrated solution of the household garbage leachate comprises the following steps: step 1, removing or reducing the content of heavy metal ions in the reverse osmosis concentrated solution of the household garbage leachate; 2, desalting the reverse osmosis concentrated solution of the domestic garbage leachate treated in the step 1 to reduce the salt concentration of the reverse osmosis concentrated solution of the domestic garbage leachate; 3, the domestic garbage leachate reverse osmosis concentrated solution treated in the step 2 is subjected to COD decomposition and ammonia nitrogen reduction reaction under the action of electricity-producing microorganisms, refractory organic matter, high salt content, high ammonia nitrogen, heavy metal and other harmful substances in the reverse osmosis concentrated solution can be e