Biological treatments of Residual Municipal Solid Waste (RMSW) allow to divert biodegradable materials from landfilling and recover valuable alternative resources. The biodegradability of the waste components needs however to be assessed in order to design the bioprocesses properly. The present study investigated complementary approaches to aerobic and anaerobic biotests for a more rapid evaluation. A representative sample of residual MSW was collected from a Mechanical Biological Treatment (MBT) plant and sorted out into 13 fractions according to the French standard procedure MODECOM™. The different fractions were analyzed for organic matter content, leaching behavior, contents in biochemical constituents (determined by Van Soest's acid detergent fiber method), Biochemical Oxygen Demand (BOD) and Bio-Methane Potential (BMP). Experimental data were statistically treated by Principal Components Analysis (PCA). Cumulative oxygen consumption from BOD tests and cumulative methane production from BMP tests were found to be positively correlated in all waste fractions. No correlation was observed between the results from BOD or BMP bioassays and the contents in cellulose-like, hemicelluloses-like or labile organic compounds. No correlation was observed either with the results from leaching tests (Soluble COD). The contents in lignin-like compounds, evaluated as the non-extracted RES fraction in Van Soest's method, was found however to impact negatively the biodegradability assessed by BOD or BMP tests. Since cellulose, hemicelluloses and lignin are the polymers responsible for the structuration of lignocellulosic complexes, it was concluded that the structural organization of the organic matter in the different waste fractions was more determinant on biodegradability than the respective contents in individual biopolymers.

残余市政固体废物（RMSW）的生物处理可以将可降解材料从垃圾填埋场转移出去，并回收宝贵的替代资源。然而，为了适当地设计生物过程，需要评估废物组分的生物降解性。本研究调查了有氧和无氧生物测试的补充方法，以进行更快的评估。从机械生物处理（MBT）厂收集了代表性的残留MSW样品，并根据法国标准程序MODECOM™将其分类为13个馏分。分析了不同部分的有机物含量，浸出行为，生化成分中的含量（由Van Soest的酸性去污剂纤维法确定），生化需氧量（BOD）和生物甲烷势（BMP）。实验数据通过主成分分析（PCA）进行统计学处理。发现在所有废物级分中，BOD试验的累积氧气消耗量和BMP试验的累积甲烷产量均呈正相关。在BOD或BMP生物测定的结果与纤维素样，半纤维素样或不稳定的有机化合物中的含量之间未发现相关性。浸出试验的结果（可溶性COD）也没有观察到相关性。木质素样化合物中的含量（通过Van Soest方法评估为未提取的RES分数）被发现会对BOD或BMP测试评估的生物降解性产生负面影响。由于纤维素，半纤维素和木质素是负责木质纤维素复合物结构化的聚合物，