Biodegradation of volatile solids and water mass balance of bio-drying sewage sludge after electro-dewatering pretreatment.
作者： Qian Li , Suli Zhi , Xiaoyan Yu , Yingte Li , Haigang Guo
DOI: 10.1016/J.WASMAN.2019.04.051
关键词:
摘要: Abstract Using pressurized electro-osmotic dewatering (PEOD) as the pretreatment process for sewage sludge (SS) bio-drying can improve performance, but kinetics of volatile solids biodegradation and water mass balance are still unknown. These processes were first investigated in this study. Experiments conducted with three different initial materials, which composed SS, bio-dried product SS dewatered by PEOD (EDSS) ratios. Six kinetic models a nonlinear regression method used to estimate parameters, analyzed using four statistical indicators. Satisfactory fitting proposed model experimental data was achieved. Through balance, results showed that EDSS had best performance bio-drying. provided most appropriate conditions process; highest correlation coefficient 0.9291 total removal rate 51.13% all EDSS.
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