Process for efficiently treating etching wastewater

The invention relates to the technical field of wastewater treatment, and discloses a process for efficiently treating etching wastewater, which comprises the following steps: step 1, carrying out solid-liquid separation treatment on wastewater to obtain treated liquid; 2, neutralizing and adjusting the treatment liquid, and adjusting the pH value to obtain a neutralized liquid; step 3, performing filtration and adsorption treatment on the neutralization solution to obtain a filtrate; 4, the filtrate is subjected to oxidation reduction treatment, and a reduction solution is obtained; and 5, carrying out membrane technology treatment on the reducing solution to complete wastewater treatment, removing harmful substances in the etching wastewater or converting the harmful substances into harmless substances so as to achieve the purpose of treating and purifying the etching wastewater, and separating the harmful substances in the wastewater from water through a solid-liquid separation-neutralization regulation-fi