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中文摘要：
以无锡芦村污水处理厂的污泥为例，室内分析了污泥对铜陵、德兴铜尾矿的酸碱缓冲能力和田间持水能力的改善，并通过生态毒理试验初步评估了施用该种污泥复垦铜尾矿的可行性。试验表明，在污泥施用量为0、1O、30、50、100、130、170、200g／kg时，铜陵尾矿上大麦根伸长随着污泥施用量的增加而受抑制，根长和盐分呈显著负相关关系。污泥与德兴酸性尾矿混合时，大麦根伸长呈先增后减的趋势，在污泥加入量为0～100g／kg时，根长随pH的升高和有效Cu的减少而增长，而在污泥加入量为100～200g／kg时，根长随盐分增加而受抑制：CaCl2提取的Cu随有机质增加而明显减少，CaCl2提取的Zn对pH变化比较敏感。
英文摘要：
Using root elongation experiment of barley, the suitability of sewage sludge （biosolids） collected from Wuxi Wastewater Treatment Plant for revegetation of copper mine tailings was studied. The results showed that when the biosolids applied at 0 - 200 g/kg, the application of biosolids increased the acidity buffering and water holding capacity of the tailings. In the mixture of Tongling tailings and biosolids, the main factor that inhibited barley root elongation was salinity which increased as biosolids increased. In the mixture of Dexing railings and biosolids, the pH and salinity were significantly correlated with biosolids application rates. The CaCl2-extracted Cu decreased as the organic matter increased. The CaCl2-extracted Zn was sensitive to pH change. When biosolids was applied at 0 -100 g/kg, the root length increased with increasing of pH values and decreasing of Cu concentration. And when biosolids was at 10 - 200 g/kg, the root length was inhibited due to the high salinity.
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