Abstract: A method for treating wastewater or sludge includes treating a sludge having a first viscosity of from about 3,000 cP to about 15,000 cP by shearing the sludge to obtain a treated sludge having a second viscosity of less than 3,000 cP, where the second viscosity persists for a period of time. The sludge may be thickened by dewatering. A chemical agent may be added to the thickened sludge during, before, or after shearing. The treated sludge may further be pumped, transported, or otherwise handled.

Abstract: A method of detecting defects in nuclear fuel within a fuel rod that first heats the fuel rod to a temperature substantially above the ambient temperature. The surface temperature of the fuel rod cladding is then monitored as the fuel rod is allowed to cool. Variations in the temperature measured over the surface is then noted as an indication of defects.

Abstract: A method of detecting defects in nuclear fuel within a fuel rod that first heats the fuel rod to a temperature substantially above the ambient temperature. The surface temperature of the fuel rod cladding is then monitored as the fuel rod is allowed to cool. Variations in the temperature measured over the surface is then noted as an indication of defects.

Abstract: The present disclosure relates to methods of treating highly contaminated wastewater using waste activated sludge as an adsorbent.

Abstract: A nuclear fuel pellet design that is a cylindrical axial profile with either a larger radius or conical shaped ends such that the as built diameter at the ends of the pellet are slightly smaller than at the middle and at normal operating conditions, the diameter at the ends is nearly the same as at the middle. Preferably, there are short chamfers at the axial ends of the pellet.

Abstract: The present disclosure relates to methods of treating highly contaminated wastewater using waste activated sludge as an adsorbent.

Abstract: A method of removing layers of heat cured paint buildup on supporting hangers is disclosed. The method includes coating support hangers with a layer of a thermally expandable material in a water soluble carrier and thereafter applying a water insoluble coating layer. The thermally expandable material, the carrier and the water insoluble coating are all selected so as to be relatively unaffected by the curing temperatures of the paint line where the hangers are to be used. When an undesirably thick coating of cured paint has built-up on the hangers, it is removed by heating to a temperature sufficient to expand the thermally expandable material thereby cracking the paint layers. Thereafter, the hangers are soaked in a hot aqueous solution to dissolve the carrier layer and remove the cracked, cured paint layers.

Abstract: A composition and method of treating paint spray booth water to detackify organic solvent based paint particles. The composition comprises a melamine polymer obtained from the reaction of melamine, aldehyde and an amine selected from the group consisting of dicyandiamide and glycine. These melamine polymers may be used in combination with a polyacrylamide, which combination exhibits surprising and unexpected effects when used to detackify organic solvent paint particles.

Abstract: This invention relates to a novel method for breaking oil in water emulsions. More specifically, this invention relates to a cationic quarternary ammonium modified blend of a starch and a natural gum, which is effective at breaking oil in water emulsions.

Abstract: The present invention relates to a novel method for coagulating waterborne paints in paint spray booth recirculating water. The coagulant aid comprises a polynucleate hydroxy silicate-sulphate compound (hereinafter PASS) having the following average composition of the general formula:Al(OH).sub.B (SO.sub.4).sub.C (SiO.sub.X).sub.D (H.sub.2 O).sub.Ewherein B ranges from 0.75 to 2.0; C ranges from 0.30 to 1.12; D ranges from 0.005 to 0.1; X is greater than 2.0 but less or equal to 4.0 such that3=B+2C+2D(X-2)E is 1.5 to 4 when the product is in solid form; and E is larger than 4 when the product is in aqueous form, which may optionally be used together with alum or a mixture of alum and a polyamine. The coagulant aids of this invention may also be used advantageously with detackifying agents to simultaneously detackify and coagulate solvent based paint particles.

Abstract: This invention relates to a novel composition for breaking oil in water emulsions. More specifically, this invention relates to a cationic quaternary ammonium modified blend of a starch and a natural gum, which is effective at breaking oil in water emulsions.

Abstract: A novel polymer and treatment scenario which considerably improves detackification of paint overspray consisting of high solids enamel, epoxy resin, or polyurethanes in the wash water or paint spray booths is disclosed comprised of:(i) a hydrophilic-lipophilic copolymer in combination with a modified tannin and/or(ii) a diallyldimethylammonium chloride polymer in combination with a modified tannin.

Abstract: A novel treatment scenario which considerably improves detackification of paint overspray consisting of undiluted high solids enamel, epoxy resin or polyurethanes in the wash water of paint spray booths is disclosed, comprised of (i) a dialkylamine-epihalohydrin in combination with a modified tannin and/or (ii) a dialkylamine epihalohydrin in combination with a melamine formaldehyde type polymer.

Abstract: A composition and method for detackifying paint spray booth water containing particles from paint spray is disclosed which uses a reaction product of an aldehyde with either a urea or an aminotriazine or both, and at least one of;(i) a hydrolyzed polyacrylamide;(ii) certain modified tannins in further combination with diallyldialkyl quaternary ammonium polymers or polymers derived by reacting certain dialkylamines with epihalohydrins.