关键词: 微生物浸铀, 酸化酸度, 浸出率, 耗酸率

Abstract: Under the different acidity of 10，20 and 30 g/L(other conditions are equal), the uranium bioleaching technology with low acid consumption, less clogging and high leaching rates are studied through the column leaching experiments. This provides a reference for industrial leaching application. The results show that under three conditions, the uranium leaching rate is similar to be 96.14%，94.88% and 98.25% respectively with acidity of 8.23%，9.24%，9.67%. When the acidity of acid is 10 g/L, the acid consumption is lowest.

Key words: Uranium bioleaching, Leaching rate, Acidity, Acid consumption rate