This study assessed the effects of salinity and sewage sludge on the fractionation of Zn and Cu in a soil around a lead-zinc mine as well as their uptake by earthworms (Eisenia fetida) in order to identify novel methods for employing the earthworms in waste management techniques. Eisenia fetida specimens were kept under laboratory conditions for 42 days. The first treatment involved the addition of 0%, 2%, 4%, and 8% (w/w) sewage sludge to contaminated soil. In the second treatment, NaCl was added to the soil at concentrations of 0, 1170, 2340, 3510, and 4680 mg L-1. The results indicated that the combined application of high salinity and sewage sludge had adverse effects on the survival of the earthworms. The presence of the earthworms increased the amount of Zn and Cu bound to organic matter. The organic fraction of Zn and Cu also significantly aggregated with increasing salinity levels. The interaction of salinity and earthworm showed that the residual Cu fraction increased with the presence of earthworm and decreased with increasing salinity. The residual fraction of Cu was significantly affected by the interactions of salinity and sewage sludge, where the highest amount was seen in the EC0 (distilled water) × SS8 (8% sewage sludge) treatment. The Zn and Cu contents increased with the earthworms when exposed to higher levels of salinity and sewage sludge.

中文翻译：

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盐分，污水污泥和earth对锌和铜的分馏以及and污染的锌和铜污染的钙质土壤中的金属吸收的相互作用。

这项研究评估了盐分和污水污泥对铅锌矿周围土壤中Zn和Cu的分离以及by（Eisenia fetida）的吸收的影响，从而确定了将employing用于废物管理的新方法技术。Eetnia fetida标本在实验室条件下放置42天。第一步处理是向污染的土壤中添加0％，2％，4％和8％（w / w）的污水污泥。在第二种处理中，将NaCl以0、1170、2340、3510和4680 mg L-1的浓度添加到土壤中。结果表明，高盐度和污水污泥的联合应用对the的生存有不利影响。的存在增加了与有机物结合的锌和铜的含量。锌和铜的有机部分也随着盐度水平的增加而显着聚集。盐分与worm的相互作用表明，残留铜的含量随worm的存在而增加，随盐分的增加而降低。铜的残留分数受盐度和污水污泥相互作用的显着影响，其中EC0（蒸馏水）×SS8（8％污水污泥）处理中的残留量最高。当worm暴露于更高的盐度和污水污泥中时，with中的锌和铜含量会增加。铜的残留分数受盐度和污水污泥相互作用的显着影响，其中EC0（蒸馏水）×SS8（8％污水污泥）处理中的残留量最高。当worm暴露于更高的盐度和污水污泥中时，with中的锌和铜含量会增加。铜的残留分数受盐度和污水污泥相互作用的显着影响，其中EC0（蒸馏水）×SS8（8％污水污泥）处理中的残留量最高。当worm暴露于更高的盐度和污水污泥中时，with中的锌和铜含量会增加。