Wastes Energy Research Center, Korea Institute of Energy Research, 102 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Korea.
Bioresour Technol. 2011 Sep;102(18):8501-6. doi: 10.1016/j.biortech.2011.04.089. Epub 2011 May 1.
The effect of sewage sludge (SWS) addition on the H2 fermentation of food waste (FW) was investigated. It was found that a slight addition of SWS (10:1=FW:SWS on a COD basis) significantly enhanced the H2 fermentation performance, not only increasing the total amount of H2 produced but accelerating the whole reaction, shortening the lag period, and increasing the H2 production rate. Substrate degradation and microbial germination were also facilitated by SWS addition. A simple calculation reveals that the increased amount of H2 production derived mostly from FW, indicating that SWS addition synergistically enhanced H2 fermentation performance. This was attributed to the existence of Fe and Ca at much higher concentrations in the SWS compared to the FW. The batch process treating a mixture of FW and SWS was repeated and showed an average H2 yield of 2.11 ± 0.20 mol H2/mol hexose(added), which was 13% higher than that of FW treated alone.
研究了添加污水污泥（SWS）对食物垃圾（FW）的氢气发酵的影响。结果发现，少量添加 SWS（10:1=FW：SWS 基于 COD）显著提高了氢气发酵性能，不仅增加了氢气的总产量，而且加速了整个反应，缩短了迟滞期，并提高了氢气的产率。添加 SWS 还促进了基质降解和微生物发芽。简单计算表明，增加的氢气产量主要来自 FW，表明 SWS 添加协同增强了氢气发酵性能。这归因于 SWS 中存在的 Fe 和 Ca 浓度比 FW 高得多。处理 FW 和 SWS 混合物的批处理过程被重复进行，平均氢气产率为 2.11±0.20molH2/mol 己糖（添加），比单独处理 FW 高出 13%。
