Abstract：
: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 15.37 m(3) min(-1) (6/34 min/min, AR: 102.46 m(3) min(-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: 87.34 m(3) min(-1)), and when ambient air temperature was higher.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Zhou HB,Chen TB,Gao D,Zheng GD,Chen J,Pan TH,Liu HT,Gu RYdoi
10.1016/j.biortech.2014.07.006subject
Has Abstractpub_date
2014-11-01 00:00:00pages
452-60eissn
0960-8524issn
1873-2976pii
S0960-8524(14)00971-7journal_volume
171pub_type
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