Improving the pumping capacity of wells is a key issue for the production of in-situ leaching of uranium mining. Under the condition of air lift of solutions,the vacuum op-erations in drillings were studied to increase the water yield of wells. The test results indi-cated that the water yield of wells had increased and were stable, the average increasing rate was about 20 . 3%. The acidity and uranium concentration of solutions vary little be-tween before and after test. Using vacuum operations is an effective method for strengthe-ning production of in ...
