摘要
通过建立厌氧降解模型研究了温度对城市固废中生化降解过程的影响，对已有的生化降解反应速率一级动力方程进行了修正，通过加入温度影响系数考虑温度的影响．基于OGS软件，通过数值计算分析了温度对城市固废中纤维素、总糖、蛋白质和脂肪组分的降解过程的影响，并研究了不同温度下的水解与甲烷化过程．将大型模型槽试验数据与数值计算结果进行对比，揭示了温度在多场耦合作用中的影响．结果表明，在10～45℃温度范围内，温度会显著影响水解与甲烷化进程的反应速率．
The anaerobic degradation model for municipal solid waste （MSW） is developed to study the influence of temperature on the biochemical degradation process in MSW. The existing first-order dynamic equation of biochemical degradation is improved to take the temperature into consideration by introducing a temperature dependent coefficient for both hydrolysis and methanogenesis process. With the numerical simulation program OGS, the impacts of temperature on the degradation proces- ses of cellulose, total sugar, protein and fat are analyzed, and also the hydrolysis and methanogenesis processes at different temperature are investigated. The thermo-hydro-mechanical-chemical-bio- logical （THMCB） coupled model is calibrated by a pilot-scale experiment of MSW to reveal the effect of temperature in multi-field coupling. The results show that in the temperature range of 10 to 45 ℃, the biological degradation process can be significantly affected by temperature.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2016年第A01期1-6,共6页
Journal of Southeast University：Natural Science Edition
基金
国家自然科学基金资助项目(51508504)
关键词
城市固废
生化降解
THMCB耦合模型
municipal solid waste（MSW）
biodegradation
thermo-hydro-mechanical-chemical-bi- ological（THMCB） coupled modeling
