Soil washing is a proven technique employed in many site remediation projects. Ground material from contaminated sites may contain heavy metals, organic solvents, etc., resulting from leakage or spills during industrial activity sometime in the past. The technique consists of physical and/or chemical processes that allow the separation of particle agglomerates and removal of the contaminants often contained within. This technique is the only one that solves all the problems related to land remediation with an industrial approach achieving desired results within a scheduled period.
How the Soil Washing works

Contaminants tend to concentrate in agglomerates of fine particles, which can be highly absorbent for their weight due to their large specific surface area. The particles are separated using various wet processes during which intensive washing takes place. The clean material is classified according to particle size with the finest fraction dewatered using a GHT filterpress.

Soil Washing Plants DIEMME

Diemme projects, manufactures and installs Soil Washing Plants for the drainage of grounds contaminated from different types of pollutants : heavy metals, hydrocarbons, pesticides,etc…

Each plant is specifically designed to suit the particular pollutants involved, whether they be heavy metals, solvents, pesticides, etc.. The design is based on the results of extensive testing of samples of material taken from the ground at the site. Modern technology, including the inclusion of Diemme state-of-the-art filter presses, ensures that the maximum solids recovery is achieved, with a minimum of waste.

The Soil Washing  plants so realized allow to select and to recover more than the 90% of aggregates present in the soil and to concentrate the polluter in very low fractions. Diemme has already realized Soil Washing Plants and it has been supplying others, contact us for more information and to fix a visit to the plants.

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