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For studying the purification capacity of loess aerated zone on Cd, Pb in the industrial wastewater, an in-situ experiment was carried out in the loess aerated zone of the loess plateau in the North Shaanxi Province.In this experiment, the wastewater which contained the pollutants Cd, Pb with respective content of 1.651 u g/l、 9.483 u g/l was filled into the loess aerated zone.Approximately 5651 of wastewater was used in the test, which lasted 333min.