Treatment of ammonium-rich swine waste in modified porphyritic andesite fixed-bed anaerobic bioreactor.
Treatment of ammonium-rich swine waste in modified porphyritic andesite fixed-bed anaerobic bioreactor.
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DOI：
10.1016/j.biortech.2012.01.182
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发表时间：
2012-05
影响因子：
11.4
通讯作者：
Qinghong Wang;Yingnan Yang;Dawei Li;Chuanping Feng;Zhenya Zhang
中科院分区：
文献类型：
--
作者：
Qinghong Wang;Yingnan Yang;Dawei Li;Chuanping Feng;Zhenya Zhang
在这项研究中，开发了一种改性斑状安山岩（WRS）作为铵吸附剂和床材料，用于厌氧消化富含铵的猪排泄物。研究了使用改良 WRS、天然 WRS、氯化钙且无添加剂的生物反应器的性能。采用改良WRS的生物反应器表现出最佳性能，在35°C的44天实验中，启动时间为第7天，甲烷产量为359.71ml/g-VS，COD去除率为67.99%。改性WRS对微生物的有效铵吸附和必需离子解离，以及微生物在改性WRS表面的固定化，对于富含铵的猪粪的高效厌氧消化起到了很大的作用。
In this study, a modified porphyritic andesite (WRS) was developed as ammonium adsorbent and bed material for the anaerobic digestion of ammonium-rich swine waste. The performance in bioreactors with modified WRS, natural WRS, calcium chloride and no additives was investigated. The bioreactor with modified WRS exhibited the best performance, with start-up time on the 7th day, methane yield of 359.71ml/g-VS, and COD removal of 67.99% during all 44days of the experiment at 35°C. The effective ammonium adsorption and essential ions dissociation for microorganisms by modified WRS, as well as the immobilization of microbial on the surface of the modified WRS play a great role on the high efficiency anaerobic digestion of ammonium-rich swine waste.