Adding granular activated carbon into anaerobic sludge digestion to promote methane production and sludge decomposition
Adding granular activated carbon into anaerobic sludge digestion to promote methane production and sludge decomposition
复制标题
厌氧污泥消化添加颗粒活性炭促进甲烷产生和污泥分解
DOI：
10.1016/j.jclepro.2017.02.156
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发表时间：
2017-04
影响因子：
11.1
通讯作者：
Zhao Zisheng
中科院分区：
文献类型：
--
作者：
Yang Yafei;Zhang Yaobin;Li Zeyu;Zhao Zhiqiang;Quan Xie;Zhao Zisheng
由于剩余活性污泥成分复杂，厌氧消化往往受到发酵速度慢的限制。碳材料在污水厌氧处理中具有促进互养代谢的作用，但其在污泥厌氧消化中的作用还有待进一步研究。在间歇式厌氧污泥消化反应器中添加颗粒活性炭（GAC），以提高污泥消化效果。结果表明，当活性炭投加量为0 ~ 5.0g时，甲烷产量提高了17.4%，污泥减量率提高了6.1个百分点（从39.1%提高到45.2%）。在20 d的消化过程中，活性炭明显富集了利用氢的产甲烷菌、Gesterion等能够直接进行种间电子传递的产甲烷菌，从而增强了产甲烷菌与产甲烷菌之间的电子交换，加速了底物的消耗和甲烷的产生。
Anaerobic digestion of waste activated sludge is frequently restricted with the slow fermentation rate due to its complex components. Carbon materials have been reported to enhance syntrophic metabolism of anaerobic wastewater treatment, but its function in anaerobic digestion of sludge has yet to be investigated. In this study granular activated carbon (GAC) was added into a batch-mode anaerobic sludge digestion reactor with an attempt to improve the sludge digestion. The results showed that with adding GAC from 0 to 5.0 g, the methane production increased by 17.4%, and the sludge reduction rate increased by 6.1 percent points (from 39.1% to 45.2%). In the 20 days’ digestion, GAC obviously enriched hydrogen-utilizing methanogens,Geobacter, and other methanogens capable of direct interspecies electron transfer, which could enhance the electron exchange between syntrophs and methanogens to accelerate substrate consumption and methane production.
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影响因子：
5.1
作者：
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通讯作者：
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影响因子：
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