餐厨垃圾厌氧消化影响因素分析

Analysis of Influencing Factors of Anaerobic Digestion of Kitchen Waste

阐述了近年来餐厨垃圾厌氧消化的研究进展,分别讨论了含固率、有机负荷、Na^+、VFAs与氨氮、消化温度和含油量在餐厨垃圾厌氧消化过程中的影响,并总结了适量掺加污泥对餐厨垃圾厌氧消化的促进作用:一是污泥可以稀释餐厨浆液中的Na^+浓度;二是保持厌氧消化系统的弱碱性,进而提升餐厨厌氧消化性能。

The research progress of anaerobic digestion of kitchen waste in recent years was summarized. The effects of solid content, organic load, Na^＋, VFAs and ammonia nitrogen, digestion temperature and oil content on the process of anaerobic digestion of kitchen waste were discussed. In addition, the positive impact of proper amount of adding sludge on anaerobic digestion of kitchen waste was summarized. On one hand, the concentration of Na^＋ in kitchen slurry could be diluted by the sludge. On the other hand, the existence of sewage sludge could help remain the system in a weakly alkaline condition,so that to improve the whole performance.