A method of separating infill material (105) of synthetic turf is disclosed. The infill material (105) comprises sand (155), rubber (165) and fibres (135). The method comprises combining the infill material (105) with water (106) to form an infill slurry (110), and separating one or more of the sand (155), rubber (165) and fibres (135) from the infill slurry (105). A hydrocyclone (104) may be used to separate the infill slurry (105) into a fibre slurry (107) and a sand/rubber slurry (111). An separation unit (200) for carrying out the method is also disclosed.

A method of recovering filler material from a polymer material comprises (a) heating the polymer material to a first temperature; (b) heating the polymer material to a second temperature higher than the first temperature resulting in a pyrolyzed material; (c) elutriating the pyrolyzed material to obtain a separated mixture; and (d) filtering the separated mixture to obtain the filler material.

Pre-treating a waste polyester material with dichloromethane (DCM) produce purified polyester for reuse. The purified polyester can be recycled via any chemical or mechanical recycling process. Where the waste polyester material includes non-polyester contaminants, the DCM-treated polyester material produces a slurry that includes the DCM, a solid component that includes a polyester monomer product for reuse, and a waste liquid component where the non-polyester contaminants can be filtered from the top of the liquid component.

The present disclosure provides a method, process and system for recycling an asphalt-based roofing material. In particular, the method, process and system are capable of removing and recovering an aggregate product, fiber product and an asphalt product from the asphalt-based roofing material. The aggregate, fiber and asphalt products each may be reused in a variety of applications.

A polymeric aerosol dispenser that is recyclable. The recyclable polymeric aerosol dispenser including all polymeric components. These components being selectively either fixedly joined or separably joined based on the material composition of the component. Further, components may be selected for their density and, thus, their ability to float or sink during the recycling process. The recyclable polymeric aerosol dispenser is designed to minimize its impact on the PET recycling stream and to align with industry recyclability guidelines.

The invention pertains to a process for separating mixtures of solids based on their densities. The present invention also relates to the use of a separating liquid (L) for separating plastic solids from metal-containing solids based on their densities, wherein the separating liquid (L) has a density d3 such that 1.5<d3<2.0; wherein the solids have a particle size ranging from 0.1 to 100 mm. The separating liquid (L) is preferably a fluorinated fluid.

A dynamic process for upcycling polymers. Polymers from a diverse post-consumer waste stream are gathered in a mixture. The mixture is extruded and combined with a liquid additive containing a particular PE wax at the verge of polymerization. The liquid additive is repolymerized into LDPE to form pellets. The pellets are delivered into a reactor and submerged in a suitable solvent to dissolve the LDPE. Causing a gradual and orderly separation of the remaining polymers from one another, resulting in a layered substrate. The suitable solvent, enzymes or depolymerizing compatible chemical is delivered into the reactor through independent pipes attached to tanks containing the suitable depolymerizing agent. The process repeats depolymerizing the layered substrate layer by layer with additional suitable solvents/enzymes or depolymerizing agents for each of the polymers resulting in the dissolving of the remaining polymers in an orderly manner producing a layered wax-like material for upcycling.

A method and apparatus for washing and separating pieces of plastics material from contaminating material that also includes metal elements includes a stirring device having a plurality of blades which are driven in a washing fluid to generate a turbulent stirring action to mechanically remove part of the contaminating material from the plastics material. The tilt of the blades and the rotation speed of the stirring device are chosen carefully to generate an upward thrusting action to maintain the plastics material with a specific weight that is greater than the specific weight of the fluid in a floating condition. The plastics material is retained inside the container for sufficient time to obtain a desired degree of purity and decontamination for the plastics material, after which it is evacuated by controlled overflow.

Provided is an ink film recovery method including detaching and removing, from a plastic substrate having an ink film, the ink film by using an ink cleaning agent containing water and at least one selected from an amphoteric surfactant and a cationic surfactant, and then recovering the detached ink film, an ink cleaning agent that can be applied to this ink film recovery method, and an ink film detaching method. Ink films printed on plastic substrates can be easily detached and the detached ink films can be easily recovered using an ink cleaning agent that contains water and at least one selected from an amphoteric surfactant and a cationic surfactant.

A polymeric aerosol dispenser that is recyclable. The recyclable polymeric aerosol dispenser including all polymeric components. These components being selectively either fixedly joined or separably joined based on the material composition of the component. Further, components may be selected for their density and, thus, their ability to float or sink during the recycling process. The recyclable polymeric aerosol dispenser is designed to minimize its impact on the PET recycling stream and to align with industry recyclability guidelines.