| 废定影液的处理和再生利用 |
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| 引用本文： | 王大勇,李挺.废定影液的处理和再生利用[J].云南环境科学,2010,29(1):62-63. |
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| 作者姓名： | 王大勇 李挺 |
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| 作者单位： | 后勤工程学院营房管理与环境工程系,重庆,400016 |
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| 基金项目： | 重庆市科技攻关计划项目 |
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| 摘 要： | 采用Na2S—SO2法处理废定影液，以硫化钠沉淀定影液中的银，用二氧化硫对废定影液进行再生处理，结果表明：银的回收率达到了95％，再生的废定影液，亚硫酸钠补充率达到了100％。硫代硫酸钠补充率约为50％，每1L再生定影液需再投加126gNa2S2O3·5H2O；废定影液处理经济收益约128万元／a。
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| 关 键 词： | 废定影液 再生处理 银回收 |
Treatment and Regeneration of Waste Fixer |
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| WANG Da- yong,LI Ting.Treatment and Regeneration of Waste Fixer[J].Yunnan Environmental Science,2010,29(1):62-63. |
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| Authors: | WANG Da- yong LI Ting |
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| Institution: | ( Department of Real - estate Management and Environment Engineering of Logistic Engineering University, Chongqing 400016 China ) |
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| Abstract: | The Na2S- SO2 method was used to treat waste fixer. The Na2S was used to precipitate the silver ion in waste fixer, and then the sulphur dioxide was applied to regenerate the waste fixer. The results show that the reclaim rate of silver can reach 95%, and the fill rate of Na2SO3 is 100%, however, the fill rate of Na2S2O3 · 5H2O is 50%, it should be added in waste fixer with 126g per liter. The benefit of waste fixer in the method is 1.28 million Yuan annually. |
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| Keywords: | waste fixer regeneration treatment silver reclaim |
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