Progress in research on the treatment and solidification of wet desulfurized sludge in coal-fired power plants #br#

Abstract

Abstract: As a by-product of desulphurization wastewater treatment in coal-fired power plants，desulphurization sludge is
of intensive heavy metals and complex composition，which makes it difficult to dispose. To expound the characteristics and
hazards of the desulfurized sludge，the dewatering technologies，heavy metal removal technologies and resource utilization
applied for the desulfurized sludge are analyzed based on its component analysis. The discussion focuses on the current
sludge solidification technology，and also involves solidification affecting factors and difficulties at this stage. The
solidification technology is evaluated and predicted according to the actual situation，which points out the development
direction and provides a reference for the future research on the stabilization treatment of desulfurization sludge.

Key words: coal-fired power plant, wet FGD, desulfurized sludge, dewatering, heavy metal removal, resource utilization, solidification

LI Lei1，QIAO Lin2，LIU Zhensheng1，QU Baozhong2，LIU Daokuan2，. Progress in research on the treatment and solidification of wet desulfurized sludge in coal-fired power plants #br#[J]. Huadian Technology, 2020, 42(3): 72-77.

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Progress in research on the treatment and solidification of wet desulfurized sludge in coal-fired power plants #br#

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