Compositions for Conditioning Sludge

摘要

Composition for conditioning sludge, comprising a mineral compound that is lime and an organic compound that is a cationic organic coagulant having an average molecular weight less than or equal to 5 million g/mol and greater than or equal to 20,000 g/mol, the said cationic organic coagulant being chosen from the group of linear or branched polymers based on diallyldialkyl ammonium salts.

主权项

1. Sludge conditioning composition comprising a mineral compound and an organic compound, wherein said mineral compound is lime and said organic compound is selected from the group consisting of linear or branched polymers based on diallyl dialkyl ammonium salts, characterized in that said organic compound is a cationic organic coagulant having an average molecular weight less than or equal to 5 million g/mol and greater than or equal to 20,000 g/mol, present in a quantity ranging from 3 g to 100 g for 1 kg of lime expressed as a slaked lime Ca(OH)2 equivalent, said composition being in the form of an homogeneous and stable mixture of lime and said coagulant before being introduced for conditioning sludge and in that said composition is in a stable suspension form, wherein said lime is slaked lime in the form of a milk of lime, and forms with said organic coagulant a stable suspension.