Graduate School of Life and Environmental Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
Bioresour Technol. 2012 May;111:70-5. doi: 10.1016/j.biortech.2012.01.182. Epub 2012 Feb 8.
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 359.71 ml/g-VS, and COD removal of 67.99% during all 44 days 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.
本研究以一种改进的斑状安山岩（WRS）为原料，开发出一种铵吸附剂和床料，用于处理富含铵的猪粪的厌氧消化。考察了在装有改性 WRS、天然 WRS、氯化钙和无添加剂的生物反应器中的性能。在 35°C 下，装有改性 WRS 的生物反应器的性能最佳，启动时间为第 7 天，甲烷产量为 359.71ml/g-VS，在 44 天的实验中 COD 去除率为 67.99%。改性 WRS 对铵的有效吸附和微生物必需离子的解离，以及微生物在改性 WRS 表面的固定化，对富含铵的猪粪的高效厌氧消化起着重要作用。
