A method for recycling polyester fabrics with use of an ionic liquid catalyst is provided, which includes: providing a recycled polyester fabric; and using a chemical de-polymerization liquid to chemically de-polymerize the recycled polyester fabric and form a de-polymerization product that includes bis-2-hydroxylethyl terephthalate (BHET). The chemical de-polymerization liquid is used to chemically de-polymerize the recycled polyester fabric in an environment where a de-polymerization catalyst exists, and the de-polymerization catalyst is the ionic liquid catalyst in a solid state.

The present invention is a method for treating an alloy, by which a solution that contains nickel and/or cobalt is obtained from an alloy that contains copper, zinc, and nickel and/or cobalt, said method comprising: a leaching process wherein a leachate is obtained by subjecting the alloy to a leaching treatment by means of an acid in the coexistence of a sulfurizing agent; a reduction process wherein the leachate is subjected to a reduction treatment with use of a reducing agent; and an ion exchanging process wherein a solution that contains nickel and/or cobalt is obtained by bringing a solution, which has been obtained in the reduction process, into contact with an amino phosphoric acid-based chelate resin, thereby having zinc adsorbed on the amino phosphoric acid-based chelate resin.

Provided is a method for recovering valuable metals contained in waste batteries, wherein valuable metals can be efficiently recovered while suppressing a reduction in recovery rate. The method according to the present invention for recovering valuable metals from waste batteries comprises: a roasting step S1 for roasting a waste battery; a crushing step S2 for inserting an obtained roasted material into a crushing container, and crushing the roasted material using a chain mill; and a sieving step S3 for sieving an obtained crushed material and separating the crushed material into sieve upper material and sieve lower material. A chain mill equipment that is used in the crushing process is provided with: a rotating axial rod vertically erected with respect to a bottom surface of a crushing container; and a chain attached to a side surface of the rotating axial rod.

Provided is a method for recovering valuable metals contained in waste batteries, wherein valuable metals can be efficiently recovered while suppressing a reduction in recovery rate. The method according to the present invention for recovering valuable metals from waste batteries comprises: a roasting step S1 for roasting a waste battery; a crushing step S2 for inserting an obtained roasted material into a crushing container, and crushing the roasted material using a chain mill; and a sieving step S3 for sieving an obtained crushed material and separating the crushed material into sieve upper material and sieve lower material. A chain mill equipment that is used in the crushing process is provided with: a rotating axial rod vertically erected with respect to a bottom surface of a crushing container; and a chain attached to a side surface of the rotating axial rod.

A tissue digestor system includes a container for housing a digestion chamber having an exterior vessel for holding digestor fluid and an interior vessel, the container extending from a first end to a second end, the interior vessel having perforations and having baffles extending from an interior surface of the interior vessel; a lid secured to the exterior vessel and to provide access to the digestion chamber; one or more heating elements positioned to apply heat to the digestion chamber; a motor engaged with the interior vessel and to create rotational movement of the interior vessel; a control system, having a temperature controller; and a movement controller; the control system is to rotate the interior vessel and heat the digestion chamber based on user commands; and the digestion chamber is to break down remains through application of the digestor fluid to the tissue remains.

A tissue digestor system includes a container for housing a digestion chamber having an exterior vessel for holding digestor fluid and an interior vessel, the container extending from a first end to a second end, the interior vessel having perforations and having baffles extending from an interior surface of the interior vessel; a lid secured to the exterior vessel and to provide access to the digestion chamber; one or more heating elements positioned to apply heat to the digestion chamber; a motor engaged with the interior vessel and to create rotational movement of the interior vessel; a control system, having a temperature controller; and a movement controller; the control system is to rotate the interior vessel and heat the digestion chamber based on user commands; and the digestion chamber is to break down remains through application of the digestor fluid to the tissue remains.

A system for processing a waste lithium-ion battery includes: a first aqueous solution generator that includes a first elution tank storing water, and that immerses an active material taken out from the waste lithium-ion battery in the water in the first elution tank and subjects the active material to carbon dioxide bubbling in the first elution tank to generate an aqueous solution of pH 5.5 to 8.5, in which lithium contained in the active material is eluted; a first solid-liquid separator that removes a solid component from the aqueous solution generated by the first aqueous solution generator; a first crystallizer that causes lithium carbonate to be deposited from the aqueous solution, from which the solid component has been removed by the first solid-liquid separator; and a second solid-liquid separator that performs solid-liquid separation on slurry containing the lithium carbonate deposited in the first crystallizer to take out the lithium carbonate.

A system for processing a waste lithium-ion battery includes: a first aqueous solution generator that includes a first elution tank storing water, and that immerses an active material taken out from the waste lithium-ion battery in the water in the first elution tank and subjects the active material to carbon dioxide bubbling in the first elution tank to generate an aqueous solution of pH 5.5 to 8.5, in which lithium contained in the active material is eluted; a first solid-liquid separator that removes a solid component from the aqueous solution generated by the first aqueous solution generator; a first crystallizer that causes lithium carbonate to be deposited from the aqueous solution, from which the solid component has been removed by the first solid-liquid separator; and a second solid-liquid separator that performs solid-liquid separation on slurry containing the lithium carbonate deposited in the first crystallizer to take out the lithium carbonate.

Embodiments of the present invention may provide managing waste including providing non-sorted solid waste (1), processing non-sorted solid waste in a waste handling system (21), shredding (26) non-sorted solid waste to create shredded non-sorted solid waste (27) in a waste handling system; introducing shredded non-sorted solid waste into a thermochemical conversion reactor (4); heating and even chemically converting a shredded non-sorted solid waste; producing hydrochar (22) and a recyclable materials fraction (23); recycling water (24) used in the heating and chemically processing of the shredded non-sorted solid waste in a thermochemical conversion reactor in said waste handling system; sorting (25) the recyclable materials fraction; fueling (28) a thermochemical conversion reactor with hydrochar (22); and perhaps even recycling heat from a thermochemical conversion reactor in the waste handling system.

Embodiments of the present invention may provide managing waste including providing non-sorted solid waste (1), processing non-sorted solid waste in a waste handling system (21), shredding (26) non-sorted solid waste to create shredded non-sorted solid waste (27) in a waste handling system; introducing shredded non-sorted solid waste into a thermochemical conversion reactor (4); heating and even chemically converting a shredded non-sorted solid waste; producing hydrochar (22) and a recyclable materials fraction (23); recycling water (24) used in the heating and chemically processing of the shredded non-sorted solid waste in a thermochemical conversion reactor in said waste handling system; sorting (25) the recyclable materials fraction; fueling (28) a thermochemical conversion reactor with hydrochar (22); and perhaps even recycling heat from a thermochemical conversion reactor in the waste handling system.