| 摘要 |
The invention relates to a method for cleaning contaminated aquatic soil material, in particular dredged material, comprising of separating the aquatic soil material into at least one sand fraction and at least one sludge fraction and subsequently separating the contaminants from both the sand fraction and the sludge fraction. Separation of the aquatic soil material into a sand fraction (11) and sludge fraction (10) preferably takes place by means of at least one hydrocyclone (9) and, after separation of the sludge fraction (10), the sand fraction (11) is guided over a jig (12). The contaminants can be separated from the fractions by means of specific flotation (19,26,27) techniques. The invention further relates to a device for performing the method and to the use of the sludge and/or sand obtained with the method. <IMAGE> |
