【摘要】 研究了活性炭对细菌生长和浸出铜的效应影响。结果表明活性炭的添加对细菌的生长有一定的抑制作用,但这种作用随着添加量的增加而减弱。Fe3+对Cu浸出速率较快,活性炭对浸出速率有一定的促进作用,但效果不明显,且最终Cu的浸出率只达到87%。活性炭的添加增大了浸出体系中的生物量,加速了对Fe2+的氧化速率,从而保持溶液中较高的Fe3+浓度,可以提高铜的浸出速率。但这种促进作用需要较高浓度的活性炭添加量才比较明显。更多还原

【Abstract】 Effect of activated carbon on growth of bacteria and leaching of copper was investigated.The results showed the addition of activated carbon could inhibit the growth of bacteria.And the inhibition was weakened with higher addition.The copper was leached rapidly with ferric ion.The addition of activated carbon could promote leaching at a certain extent,but the effect was not obvious.And the leaching rate was 87% finally.The addition of activated carbon promoted the leaching of copper for increasing the biomass in system of leaching,enhancing oxidation of ferrous ion and keeping higher concentration of ferric ion.To promote leaching,the activated carbon addition should be higher.更多还原