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huang811000银虫 (正式写手)
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[求助]
求摘要翻译，请环境类的英语高手帮忙！急！！
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| 采用BCR提取法对以污泥和花生壳为原料制备的活性炭进行重金属形态分析，利用原子吸收法测定污泥热解前后Cd、Cr、Cu、Zn、Ni、Pb的不同形态含量。热解前除Pb外，其它重金属的不稳定态占大部分，热解后所有重金属的稳定性都有了显著的提高。热解能使重金属由易迁移的酸溶态和可还原态转化为性质稳定的残渣态。通过考察污泥热解前后的变化规律，得出温度、花生壳含量对重金属形态变化的可能性影响。在此基础上，利用重金属潜在生态风险指数法（IR）对污泥活性炭的重金属潜在生态风险进行评价，证实得出Cd的潜在生态风险系数较大，在利用时应引起足够的重视。（描述现实规律用一般现在时，描述自己的工作用一般过去时） |
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至尊木虫 (职业作家)
- 翻译EPI: 110
- 应助: 13 (小学生)
- 贵宾: 0.566
- 金币: 17176.4
- 散金: 1586
- 红花: 30
- 沙发: 3
- 帖子: 3341
- 在线: 545.1小时
- 虫号: 1238300
- 注册: 2011-03-19
- 性别: GG
- 专业: 金属有机化学
【答案】应助回帖
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爱与雨下: 金币+2 2012-05-07 13:02:13
huang811000: 金币+30, 翻译EPI+1, ★★★很有帮助, 摘要一般不用主动语句，we 2012-05-10 18:38:39
爱与雨下: 金币+2 2012-05-07 13:02:13
huang811000: 金币+30, 翻译EPI+1, ★★★很有帮助, 摘要一般不用主动语句，we 2012-05-10 18:38:39
| We used the extraction method of BCR to give a speciation analysis of heavy metals to identify the structure of activated carbon ,prepared by sludge and peanut shell . We determined the different forms of content about Cd, Cr, Cu, Zn, Ni, Pb after sludge pyrolysis by atomic absorption spectrometry .Most of the heavy metals were in an unstable States except Pb before pyrolysis ,but after that the thermal stability of all heavy metal were significantly improved .From which we knew pyrolysis could enable easy migration of heavy metals by acids and soluble nature restore State into a rump State of stability . By examining the rule of sludge thermal decomposition before and after , we knew that temperature and the content of peanut shells had an effect onf morphological changes of heavy metals .Based on that , we evaluatied the potential ecological risk of heavy metals in sludge activated carbon by means of indices of potential ecological risk of heavy metals (IR) , confirming that Cd of potential ecological risk coefficient was large, and once it was used people should pay enough attention. |
2楼2012-05-07 12:22:28
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