P&J Milieuservices B.V. services

Knowledge of the quality of the water bottom is particularly important when dredging operations are carried out. The quality of the water bottom to be dredged, and the receiving sediment must be known. Even when ownership transfers can understand the sediment quality is necessary. PJ Milieu BV conducts research on the basis of the applicable national standard BS 5720. The research starts with collecting historical information and asking a hypothesis: Which sediment quality may be expected? Then, the sediment is sampled with the aid of a representative number of stitch drilling. During the sampling of the sampler assess sensory, among other things, the thickness and the structure of the sludge layer and the underlying soil. After analyzing the samples, the results are tested and the quality class is determined. It is also determined whether the sludge is or is not dispersible.