Komilis Dimitris P, Ham Robert K
Department of Environmental Studies, University of the Aegean, 50 Mitilinis Street, 11364 Athens, Greece.
Waste Manag. 2003;23(5):419-23. doi: 10.1016/S0956-053X(03)00062-X.
A series of experimental runs were conducted from 1995 to 1999 in Madison (WI, USA) with the goal to investigate the biodegradation process of seven (7) solid waste components and mixtures of them under near optimal aerobic conditions. It was shown that substrates with high initial lignin contents or high initial HWSM contents were observed to have relatively low and high degradation extents, respectively. Two linear equations were derived that correlate degradation extent (as indicated by the volatile solids reduction) to initial lignin and initial HWSM contents separately. The lignin equation was compared to a similar equation previously developed for anaerobic environments by Chandler et al. (Predicting methane fermentation biodegradability. In: Biotechnology and Bioengineering Symposium No. 10 (1980) New York: John Wiley & Sons). With comparison to the Chandler formula, lignin was found to be less inhibitory to the overall substrate decomposition in aerobic environments compared to anaerobic ones. Cellulose loss contributed to a higher than 50% to the overall dry mass loss for all substrates studied. In addition, the cellulose to lignin (C/L) ratio appeared to be a relatively accurate compost maturity indicator, since it reduced to a value less than 0.5 for most substrates that had reached their degradation extent.
1995年至1999年期间，在美国威斯康星州麦迪逊市进行了一系列实验，目的是研究七种固体废物成分及其混合物在接近最佳有氧条件下的生物降解过程。结果表明，初始木质素含量高的底物或初始高水分固体含量高的底物，其降解程度分别相对较低和较高。分别推导出了两个线性方程，将降解程度（以挥发性固体减少量表示）与初始木质素和初始高水分固体含量相关联。将木质素方程与钱德勒等人（《预测甲烷发酵生物降解性》。载于《生物技术与生物工程研讨会第10号》（1980年），纽约：约翰·威利父子公司）先前为厌氧环境开发的类似方程进行了比较。与钱德勒公式相比，发现木质素在有氧环境中对整体底物分解的抑制作用比在厌氧环境中要小。在所研究的所有底物中，纤维素损失对总干质量损失的贡献超过50%。此外，纤维素与木质素（C/L）的比率似乎是一个相对准确的堆肥成熟度指标，因为对于大多数达到降解程度的底物，该比率降至小于0.5的值。
