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| 固体废物中氰化物的浸出特性研究 |
| Study on Leaching Characteristics of Cyanide in Solid Waste |
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| DOI： |
| 中文关键词: 氰化物 浸出 零顶空提取 流动注射法 固体废物 |
| 英文关键词: Cyanide Leaching Zero head space extraction Flow injection analysis Solid wastes |
| 基金项目:安徽省环境保护科研基金资助项目（2015-004） |
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| 中文摘要: |
| 采用零顶空提取器，对固体废物中氰化物做浸出试验，浸出液用流动注射法测定，并探讨固体废物中影响氰化物浸出的因素。对浸提时间和浸提次数的试验考察可知，冲刷、溶解、吸附、解吸等多种机制作用于浸出的不同阶段。试验表明，当浸提时间为18 h、浸提次数为2次时能将氰化物基本浸提出来；固体废物经稳固化处理后可明显降低氰化物的浸出量，固体废物本身所含的吸附性组分可不同程度地降低氰化物的浸出量。 |
| 英文摘要: |
| In this paper, cyanide in solid waste was leached by zero head space extractor and determined by flow injecting analysis method. Some leachability affecting factors were studied. According to the experiments on leaching time and leaching times, scour， dissolution， absorption and desorption acted on cyanide leaching at different periods. The results showed that the 〖JP2〗cyanide can be extracted basically when leaching time was 18 hours and leaching times was twice. The leaching concentration of cyanide decreased significantly when the waste was solidified, and the adsorbent components in solid waste could reduce the concentration of cyanide in various degrees. |
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