Lead is the main toxic factor in jarosite residue. It important to study release behavior of lead from simulated lead-bearing (SLBJ) for predicting stability residue and its secondary pollution environment. To identify technical issues limitations associated with safe disposal, a comprehensive analysis chemical, structural, morphological characteristics SLBJ was conducted using various detectio...

Based on a high-quality dataset of 713 daily precipitation series, changes in daily precipitation events during 1960–2013 were observed in China’s ten largest river basins. Specifically, the amount of precipitation in four categories defined by fixed thresholds and their proportion on total precipitation were analyzed on annual and seasonal time scales. Results showed annual precipitation incre...

Although precipitation interannual variability is projected to increase due to climate change, effects of changes in precipitation variance have received considerable less attention than effects of changes in the mean state of climate. Interannual precipitation variability effects on functional diversity and its consequences for ecosystem functioning are assessed here using a 6-year rainfall ma...

Iron-oxidizing thiobacilli were adapted to grow on a chalcopyrite and a galena ore concentrate. When grown on the chalcopyrite concentrate, the bacteria exhibited a doubling time of 38.4 +/- 2.9 h, with a final cellular protein concentration of 185 mug/ml and solubilization of 10.3 g of copper per liter. When grown on the galena ore concentrate, the generation time was 39.6 +/- 2.7 h, with a fi...

Lead is a toxic factor in jarosite residue, and it important to study its release behavior from simulated lead residue (LSJ) predict the stability of impact on environment. This investigated ion behavior, leaching toxicity, stability, migration LSJ during freeze–thaw cycling with thiourea (T-FTC). The lead, iron, sulfate radicals via T-FTC was influenced by several factors. Under specific condi...