Abstract

Combustion behavior of sewage sludge and duckweed blends with three different blending ratios were investigated by thermogravimetry analysis. The addition of duckweed improved the combustion characteristic of the blends at the beginning of decomposition, according to mass loss curves and kinetic analysis. The addition of duckweed could decrease the activation energy significantly, but it could be a slight decrease when a little sawdust ratio was added in. When the heating rate increased, both TG and DTG curves shifted to the high temperature region, but the combustion characteristic index increased, so there could be an optimal heating rate for different requirements and standards.

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