TITLE:
Experimental Study on Fly Ash for Conditioning of Specific Resistance of Sludge Water
AUTHORS:
Bingtao Liu, Pengju Ding
KEYWORDS:
Fly Ash; Sludge Water; Sludge; Specific Resistance
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.1 No.2,
November
8,
2013
ABSTRACT: Discharge of sludge from water works into waters will result in the
increased deterioration of water environment. Therefore, an experimental study
was conducted on the addition of conditioning agent to improve sludge
dewatering performance. The result shows that coagulation is inadaptable to the
treatment of sludge from water works and use of powdered coal ash from power
plant as conditioning agent can greatly reduce the specific resistance of
sludge and the dewatering performance can be improved. The optimal dosage of
fine powdered coal is 20g/100mL and coarse powdered coal is 30g/100mL. Powdered coal
is mixed with sludge to form filter cake, which is blended with coal in certain
proportion to make into fuel. So that incineration of sludge from water works
can be realized.