An aqueous solvent composition (or separation fluid composition) including an aqueous mixture of (a) a solvent and (b) water for swelling, degrading, and/or fully dissolving adhesives; wherein the molecular weight of the solvent in the aqueous mixture is less than 1,000 g/mol; wherein the Hansen Solubility parameters of the solvent are in the following ranges: (i) a dispersive component from 15 MPa1/2 to 21 MPa1/2; (ii) a polar component from 3 MPa1/2 to 10.5 MPa1/2; and (iii) a hydrogen bonding component from 2 MPa1/2 to 18 MPa1/2; wherein the solvent contains at least one aromatic group; wherein the solvent contains at least one hetero-atom; and wherein the adhesive at least swells to more than 50% by weight when soaked in the aqueous mixture; a process for treating an adhesive to swell, degrade, and/or fully dissolve the adhesive using the above aqueous mixture; a process for delaminating a multilayer packaging, a multilayer film or a multilayer article containing an adhesive using the above aqueous mixture; a process for recycling a multilayer packaging, a multilayer film or a multilayer article containing an adhesive using the above aqueous mixture; and a recycled packaging, film or article prepared by the above recycling process.