Page 1 - Harbour Sludge Stabilisation.pdf
P. 1
Contaminated Sludge
Moerdijk Harbour Project 2008/9
Carried out by Arcadis BV
The sandy sludge dredged during the Moerdijk Harbour reconstruction in 2008 was
found to be highly contaminated by oil and a cocktail of hazardous pollutants.
The water content in the sludge was bound to the polluted particles in such a way
that the latent water could not be released with the filter press and that drying with
Lime was also found to be impossible.
PowerCem treatment did however prove successful and the University of Delft
reported that the recovered product after treatment was an extremely
heterogeneous material with a high construction value.
All the dredged materials were used as a high quality building material in the
construction of the new harbour terminal as sea walls, roads and the hard standing
base for container storage yards.
Picture (A) shows the sand and the sludge after separation, in the background is a
beam produced from the treated sludge and used during the successful physical
and mechanical strength tests.
In the Summer of 2019 the port was revisited to
inspect the facilities stabilised with
PowerCem. The Sea walls were totally
undamaged by sea and time and the large
plant and container storage areas had
stood up to the heavy loadings remarkably
well, as the photos taken during the visit
shows:
