Methods for controlling slimes in aqueous media with a cationic colloidal alumina in fibrous form

Claim 1

THE METHOD FOR AT LEAST MINIMIZING THE ADVERSE EFFECTS IN AQUEOUS MEDIA OF BIOLOGICAL AND CHEMICAL SLIMEFORMING MATERIALS CONTAINING ANIONIC COMPONENTS, COMPRISING UNIFORMLY DISPERSING IN THE AQUEOUS MEDIUM A CATIONIC COLOIDAL ALUMINA IN FIBROUS MACRO-MOLECULAR FROM COLLOIDAL ALUMINA IN FIBROUS MACRO-MOLECULAR FORM IN WHICH THE MACRO-MOLECULES ARE 100-1500 MILLIMICRONS IN LENGTH, HAVE A LENGTH-TO-WIDTH RATIO OF AT LEAST 20:1, AND ARE CHARACTERIZED BY PRESENCE OF A MULTIPLICITY OF POSITIVE CHARGES DISTRIBUTED ALONG THE LENGTH OF THE MOLECULE, THE QUANTITY OF SAID FIBROUS ALUMINA EMPLOYED AMOUNTING TO 0.01-150 P.P.M., BASED ON THE AQUEOUS MEDIUM, SAID ALUMINA SERVING TO FLOCCULATE SAID SLIME-FORMING MATERIALS WITHOUT FORMATION OF STICKY, GELATINOUS OR AGGLOMERATED PRECIPITATES, AND REMOVING THE RESULTING FLOC FROM THE AQUEOUS MEDIUM.

Claim 2

THE METHOD FOR AT LEAST MINIMIZING THE ADVERSE EFFECTS IN AQUEOUS MEDIA OF BIOLOGICAL AND CHEMICAL SLIMEFORMING MATERIALS CONTAINING ANIONIC COMPONENTS, COMPRISING UNIFORMLY DISPERSING IN THE AQUEOUS MEDIUM A CATIONIC COLOIDAL ALUMINA IN FIBROUS MACRO-MOLECULAR FROM COLLOIDAL ALUMINA IN FIBROUS MACRO-MOLECULAR FORM IN WHICH THE MACRO-MOLECULES ARE 100-1500 MILLIMICRONS IN LENGTH, HAVE A LENGTH-TO-WIDTH RATIO OF AT LEAST 20:1, AND ARE CHARACTERIZED BY PRESENCE OF A MULTIPLICITY OF POSITIVE CHARGES DISTRIBUTED ALONG THE LENGTH OF THE MOLECULE, THE QUANTITY OF SAID FIBROUS ALUMINA EMPLOYED AMOUNTING TO 0.01-150 P.P.M., BASED ON THE AQUEOUS MEDIUM, SAID ALUMINA SERVING TO FLOCCULATE SAID SLIME-FORMING MATERIALS WITHOUT FORMATION OF STICKY, GELATINOUS OR AGGLOMERATED PRECIPITATES, AND REMOVING THE RESULTING FLOC FROM THE AQUEOUS MEDIUM.