有机成分对厨余垃圾常温厌氧消化的影响。
Effects of organic composition on mesophilic anaerobic digestion of food waste.
机构信息
School of Environment, Tsinghua University, Beijing 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing 100084, China.
School of Environment, Tsinghua University, Beijing 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing 100084, China.
出版信息
Bioresour Technol. 2017 Nov;244(Pt 1):213-224. doi: 10.1016/j.biortech.2017.07.006. Epub 2017 Jul 4.
Anaerobic digestion of food waste (FW) has been widely investigated, however, little is known about the influence of organic composition on the FW digestion process. This study aims to identify the optimum composition ratios of carbohydrate (CA), protein (CP) and lipid (EE) for maintaining high methane yield and process stability. The results show that the CA-CP-EE ratio was significantly correlated with performance and degradability parameters. Controlling the CA-CP-EE ratio higher than 1.89 (CA higher than 8.3%, CP lower than 5.0%, and EE lower than 5.6%) could be an effective way to maintain stable digestion and achieve higher methane production (385-627mL/gVS) and shorter digestion retention (196-409h). The CA-CP-EE ratio could be used as an important indicator for digestion performance. To effectively evaluate organic reduction, the concentration and removal efficiency of organic compositions in both solid phases and total FW should be considered.
食物垃圾（FW）的厌氧消化已经得到了广泛的研究，然而，对于有机成分对 FW 消化过程的影响知之甚少。本研究旨在确定碳水化合物（CA）、蛋白质（CP）和脂质（EE）的最佳组成比例，以维持高甲烷产量和过程稳定性。结果表明，CA-CP-EE 比例与性能和降解参数显著相关。控制 CA-CP-EE 比例高于 1.89（CA 高于 8.3%，CP 低于 5.0%，EE 低于 5.6%）可以是维持稳定消化和实现更高甲烷产量（385-627mL/gVS）和更短消化保留时间（196-409h）的有效方法。CA-CP-EE 比例可用作消化性能的重要指标。为了有效评估有机物质的减少，应考虑固相中有机成分的浓度和去除效率以及总 FW。
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