Method for determining the composition of a sample
AssigneeSerasea B.V.
InventorsJan Bovendeur, Barend J. Visser
Life of this patent
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Abstract
Method for determining the composition of a sample of for example dredging sludge by separating the sample into fractions, analyzing the fractions geophysically and/or physical-chemically and by further characterizing the fractions wherein the sample is separated in accordance with a preselected pattern of weight-criteria.
Claims17
A method for determining the composition of a sample by separating the sample into fractions, subsequently analyzing said sample geophysically and/or physical-chemically and by further characterizing the fractions, characterized in that the composition is determined by separating the sample in accordance with a first selected pattern of weight criteria;
- wherein said sample is of dredging sludge.
A method for determining the composition of a sample by separating the sample into fractions, subsequently analyzing said sample geophysically and/or physical-chemically and by further characterizing the fractions, characterized in that the composition is determined by separating the sample in accordance with a first selected pattern of weight criteria;
- wherein for separation into fractions the sample is carried through a hydrocyclone and the fractions obtained therefrom are separated by means of a rocking table.
A method for determining the composition of a sample comprising the steps of:
- a) passing said sample through at least one of hydrocycloning steps, the number of hydrocycloning steps is determined by a preselected pattern of weight criteria, wherein said pattern of weight criteria is based on the expected distribution of pollutants in said sample, each said hydrocycloning step includes separation of a separated fraction from a residue of said sample within a primary hydrocyclone, wherein said separated fraction is made up of particles of said sample with a specific gravity greater than or equal to a specific weight criterion associated with that hydrocycloning step, separation of said separated fraction into an underflow and a secondary residue in a secondary hydrocyclone;
- b) separating said underflow of said hydrocycloning steps into fractions;
- and
- c) analyzing said fractions.
Dependencies are inferred from the claim text.