Simulation of water removal process and optimization of aeration strategy in sewage sludge composting

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	Simulation of water removal process and optimization of aeration strategy in sewage sludge composting
	Chen Tong-Bin; Gao Ding; Zheng Guo-Di; Liu Hong-Tao
	2014
关键词	Mathematical models Sewage sludge
英文摘要	Reducing moisture in sewage sludge is one of the main goals of sewage sludge composting and biodrying. A mathematical model was used to simulate the performance of water removal under different aeration strategies. Additionally, the correlations between temperature, moisture content (MC), volatile solids (VS), oxygen content (OC), and ambient air temperature and aeration strategies were predicted. The mathematical model was verified based on coefficients of correlation between the measured and predicted results of over 0.80 for OC, MC, and VS, and 0.72 for temperature. The results of the simulation showed that water reduction was enhanced when the average aeration rate (AR) increased to 15.37m3min-1 (6/34min/min, AR: 102.46m3min-1), above which no further increase was observed. Furthermore, more water was removed under a higher on/off time of 7/33 (min/min, AR: 87.34m3min-1), and when ambient air temperature was higher.
出处	Bioresource Technology
卷	171 页:452-460
收录类别	EI
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31471]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Chen Tong-Bin,Gao Ding,Zheng Guo-Di,et al. Simulation of water removal process and optimization of aeration strategy in sewage sludge composting. 2014.