Effect of wastewater treatment processes on the combustion properties of sewage sludge
: The combustion properties of five different sewage sludges were studied by thermal gravimetric analysis in the atmosphere of oxygenand nitrogen + oxygen,respectively.The results indicate that there are not influence of wastewater treatment process and the sludges anaerobic digestion on the combustion process,but both of the anaerobic wastewater treatment and the sludge anaerobic digestion make the ignition temperature of sludge higher,and the temperature of anaerobic digestion sludge is the highest.The relationship among the ignition temperatures of five sludges is independent of combustion atmosphere and heating rate.However,low heating rate makes the temperature of sludge decline.The combustion reaction mechanisms have been studied with Satava-Sestak equation.It shows that there are the same combustion reaction mechanisms for five sludges in the same atmosphere,and the heating rate hasnt influence on them,but the combustion atmosphere has influence on them.
sewage sludge combustion wastewater treatment process ignition temperature
Xie Liping Wu Xia
School of Environment & Chemical Engineering,Tianjin Polytechnic University,Tianjin 300160,China
国际会议
哈尔滨
英文
1153-1157
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）