Recently, needs for reuse of sludge produced from WTP(water treatment plant) have been
increased with shortage of landfill sites and difficulties of the treatment and
disposal processes. Therefore, Reusing is becoming an increasingly popular waste
management alternative to divert waste from landfills. In order to research the
characteristics of WTP sludges, we used the sludges of C WTP which intake the lake Dae-
Cheong and the sludges of S WTP which intake Keum river. The specific surface area of C
and S WTP sludges were 0.9986 ㎡/㏄ and 1.874 ㎡/㏄, respectively. The gravity was
about 2.0 ~ 2.4 which are scope of peat or loamy clay. The major minerals of C WTP
sludges were kaolinite(48.4percent), muscovite(19.5percent), and quartz(16.7percent).
Also, muscovite(31.6percent), quartz(30.3percent), and kaolinite(17.3percent) in S WTP
sludges were major minerals.
