Method for concentrating germanium from germanium-containing waste acid

The invention provides a method for concentrating germanium from a germanium-containing waste acid. The method comprises the following steps: concentrating the germanium-containing waste acid by usingan acid-resistant efficient membrane, retaining germanium at the front end of the membrane to form a germanium solution in high concentration, and feeding back the germanium solution to be subjectedto chlorination distillation to extract germanium; feeding hydrogen chloride and water through the membrane smoothly to obtain a diluted hydrochloric acid solution, concentrating the diluted hydrochloric acid solution, and feeding back the concentrated hydrochloric acid obtained through concentration to be subjected to chlorination distillation, thereby achieving comprehensive utilization of the germanium-containing waste acid. Meanwhile, no additional emission is caused, germanium can be recycled, only distilled water generated in the diluted hydrochloric acid concentration process is discharged, environment burden ca