分析其原因可能是由于废渣弱碱性对弱酸性浸出具有一定的缓冲能力，导致废渣的浸出毒性较低。
It is because the waste slag in weak alkaline environment has the buffer capacity of the weak acid leaching, which thus results in lower leaching toxicity of the waste slag.
以硫化铜矿物为研究对象，在添加氯盐的酸性体系中，开展了黄铜矿加温、加压预氧化浸出过程研究。
Taking copper sulphide mineral as study objects, the studies of chalcopyrite heating and pressure pre-oxidation leaching process were conducted in acid system adding chloride.
硫化胶填充纳米二氧化后，耐酸性、耐碱性、耐水性得到了不同程度的提高，硫化胶浸出液离子降低。
Resisting water, acid and alkali properties of the modified nano-silica-filled vulcanizes can be improved accordingly, and leaching liquor ion form vulcanizes decreases.
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