通过将分解过程中一系列降解的单独降解动力学相关联,开发了一个集成模型。这被认为是这项研究的新颖性。堆肥原料分为可溶性,半纤维素,木质素,NBVS,灰,水,和自由的空气空间。考虑到它们表达某种退化现象的特定能力,Contois,Tessier(对Monod动力学的扩展),并采用一级动力学计算生化速率。发现可溶性底物的降解相对较快,可以达到约0.4小时的最大速率。木质素的水解是限速的,最大速率约为0.04perhour。干基可溶性峰浓度,半纤维素和木质素降解物约为0.9、0.2和0.3kgm(-3),分别。模型开发,作为一个平台,允许降解模拟堆肥材料,可以分离成不同的成分在本研究中使用。
An integrated model was developed by associating separate degradation kinetics for an array of degradations during a decomposition process, which was considered as a novelty of this study. The raw composting material was divided into soluble, hemi-/cellulose, lignin, NBVS, ash, water, and free air-space. Considering their specific capabilities of expressing certain degradation phenomenon, Contois, Tessier (an extension to Monod kinetic), and first-order kinetics were employed to calculate the biochemical rates. It was found that the degradation of soluble substrate was relatively faster which could reach a maximum rate of about 0.4perhour. The hydrolysis of lignin was rate-limiting with a maximum rate of about 0.04perhour. The dry-based peak concentrations of soluble, hemi-/cellulose and lignin degraders were about 0.9, 0.2 and 0.3kgm(-3), respectively. Model developed, as a platform, allows degradation simulation of composting material that could be separated into the different components used in this study.