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中文摘要：
中等使用 thermophilic 细菌的 bioleaching 铁闪锌矿的进程被比较铁闪锌矿沥滤学习 mesophiles 和中等 thermophiles 和 valuating 的性能在铁闪锌矿沥滤上发泄能力以及肉密度的效果中等 thermophiles 的性能。结果证明中等 thermophiles 在 45 点在 bioleaching 铁闪锌矿比 mesophilies 有更多的优点吗？？
英文摘要：
The process of bioleaching marmatite using moderately thermophilic bacteria was studied by comparing marmatite leaching performance of mesophiles and moderate thermophiles and valuating the effect of venting capacity as well as pulp density on marmatite leaching performance of moderate thermophiles. The results show that moderate thermophiles have more advantages over mesophilies in bioleaching marmatite at 45℃ and the pulp density of 50 g/L, and the zinc extraction efficiency reaches 93.1% in 20 d. Aeration agitation can improve the transfer of O2 and CO2 in solution and promote the growth of bacteria and therefore, enhance the leaching efficiency. Under the venting levels of 50, 200 and 800 mL/min, the zinc extraction efficiencies by moderate thermophiles are 57.8%, 92.5% and 96.0%, respectively. With the increase of pulp density, the total leaching amount of valuable metals increases, however, the extraction efficiency decreases due to many reasons, such as increasing shear force leading to poorly growth condition for bacteria, etc. The zinc extraction decreases remarkably to 58.9% while the pulp density mounts up 20%.
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