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生物法同时脱硫脱硝试验研究

Keywords: 二氧化硫,氮氧化物,生物法,同时脱硫脱硝

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Abstract:

采用轻质陶粒生物滴滤塔处理摸拟燃煤烟气中二氧化硫和氮氧化物的试验研究,探讨生物法同时脱硫脱硝的影响因素及生物降解宏观动力学。研究结果表明,生物法能有效同时去除烟气中的二氧化硫和氮氧化物,烟气同时脱硫脱硝效率分别可达99.9%和88.9%。为获得最佳烟气同时脱硫脱硝效果,二氧化硫和氮氧化物进气负荷应分别<140g/(m3·h)和20g/(m3·h),循环液pH=7~8,空床停留时间为30.28s,喷淋密度为8.81L/(m3·h)。

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