• 关键词：废碱锰电池  焙烧  汞  形态

• 基金项目：广东省科技攻关项目(No.2002C31602);广东省科技计划项目(No.2004B33301010)

• 林辉东
• 1. 惠州市人民代表大会环境资源委员会, 惠州 516003; 2. 华南农业大学环境科学与工程系, 广州 510642

• 王德汉
• 华南农业大学环境科学与工程系, 广州 510642

• 李俊飞
• 华南农业大学环境科学与工程系, 广州 510642

• 李海滨
• 中国科学院广州能源研究所, 广州 510640

• 摘要：以废碱锰电池为试验材料,在小型管式炉中进行焙烧实验.借鉴燃煤中汞的形态研究分析方法(Ontario-Hydro分析法)研究了废碱锰电池焙烧过程中汞的形态及其分布.结果表明,汞脱除率达100%,尾气中总汞浓度为186.41～194.86mg·m^-3,Hg⁰占气态汞总量的82.88%～86·64%,Hg²⁺占6.02%～6.29%.研究结果说明在本试验条件下,废碱锰电池中的汞在焙烧过程中绝大部分以单质形式进入尾气,实际生产中可直接将尾气通过强制冷却,使汞冷凝,达到回收目的.

• Abstract：Pollution of mercury in the environment was serious issue and mercury from batteries was attentioned. The work chose waste alkaline zinc manganese batteries and baking experiment was processed in a tubular furnace. According to the analytical method of mercury in coal Combustion (Ontario-Hydro), the experiment studied the speciation and distribution of mercury during baking. The results indicated that the removal ratio of mercury was 100%, and the concentration of total mercury in the end gas was about 186.41 mg·m^-3～194.86 mg·m^-3.In the gaseous mercury, the content of Hg⁰ was about 82.88%～86.64% and Hg²⁺ was about 6.02%～6.29%,which showed that the majority of gaseous mercury went into end gas by Hg⁰, So we could reclaim mercury from waste alkaline zinc manganese batteries by condensing end gas directly.

• Key words：waste alkaline zinc manganese battery  bake  mercury  speciation

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