[Effect of temperature on bioleaching of Cr from tannery sludge].
Bioleaching processes are normally sensitive to temperature fluctuations. Shake flask experiments were conducted to examine these effects in the temperature range of 12-36 degrees C. The results showed that there was an increase in the rates of pH reduction and Cr solubilization efficiency with the increase of the temperature of bioleaching reaction. After 8 days of bacterial leaching treatment, almost 100% of Cr could be leached from tannery sludge at the temperature of 28 degrees C and 36 degrees C. The temperature of 28 degrees C is recommended to be employed in the future realistic operation.
Fang
Di
D
College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
Zhou
Li-xiang
LX
D042763:Acidithiobacillus / Q000254:growth & development / Q000378:metabolism; D001673:Biodegradation, Environmental; D002857:Chromium / Q000032:analysis / Q000737:chemistry* / Q000378:metabolism; D007220:Industrial Waste; D012037:Refuse Disposal / Q000379:methods*; D012722:Sewage / Q000737:chemistry* / Q000382:microbiology; D013633:Tanning; D013696:Temperature
D007220:Industrial Waste; D012722:Sewage; D002857:Chromium