The invention relates to a plant for treating a mixture of waste products from a domestic waste collection, comprising a unit for treating a mixture (2B) of materials obtained from the mixture of waste, a substantial portion of the mass of the mixture of materials being formed by biodegradable materials, the treatment unit comprising a trommel screen (3) which is provided with a wall (4) for separating the mixture (2B) of materials into a first fraction (5) passing over the wall (4) and a second residual fraction, two densimetric tables, and a ballistic separation means (8) which is positioned between the trommel screen (3) and the densimetric tables in order to collect the first fraction (5) of materials and to supply the densimetric tables with a first sub-fraction and second sub-fraction (9, 10) of materials, respectively, the first subfraction (9) being formed by materials which have a density lower than that of the materials forming the second sub-fraction (10).

Waste treatment methods and plants.

A waste treatment system for separating contaminants including per-fluoroalkyl and poly-fluoroalkyl substances (PFAS) from bulk solid waste (12). A preparation module (9) having a bulk material separator separates oversize material (14) from bulk solid waste (12). A physical separation module (13), located down-stream of the preparation module (9), separates the bulk solid waste (12) based on particle size using physical and/or hydrodynamic and/or density separation techniques. An extraction/chemical separation module (19), located downstream of the physical separation module (13), adds leachate and/or extractant to separate the contaminants from a slurry output from the physical separation module (13), into a fines output and a contaminated water solution. A water circulation system (21) supplies water to the physical separation module (13) and the extraction/chemical separation module (19), the water circulation system including at least one water treatment process, the treated water being recycled and recirculated within the waste treatment system.

A method .sub.ES1 for the continuous aeraulic separation of particulate materials stemming from electronic scrap and made up of a mixture of particles which are heterogeneous in terms of both particle size and density, characterized in that it comprises the following successive steps: (a) grinding the particles (b) generating a gas flow carrying the ground particles, (c) carrying out a first aeraulic separation over said gas flow in order to separate the particles contained therein into a first fraction made up of the coarsest particles of various densities, and a second fraction made up of the finest particles, (d) carrying out a second aeraulic separation of said first fraction in order to separate the particles contained therein into a third fraction made up of the coarsest and densest particles and a fourth fraction made up of the coarsest and least dense particles, (e) reinjecting the third or the fourth fraction to the grinding input, and (f) recovering the second and the fourth fraction or the third fraction, as applicable, as output products.

A method .sub.ES1 for the continuous aeraulic separation of particulate materials stemming from electronic scrap and made up of a mixture of particles which are heterogeneous in terms of both particle size and density, characterized in that it comprises the following successive steps: (a) grinding the particles (b) generating a gas flow carrying the ground particles, (c) carrying out a first aeraulic separation over said gas flow in order to separate the particles contained therein into a first fraction made up of the coarsest particles of various densities, and a second fraction made up of the finest particles, (d) carrying out a second aeraulic separation of said first fraction in order to separate the particles contained therein into a third fraction made up of the coarsest and densest particles and a fourth fraction made up of the coarsest and least dense particles, (e) reinjecting the third or the fourth fraction to the grinding input, and (f) recovering the second and the fourth fraction or the third fraction, as applicable, as output products.

Solid waste, for example source separated organics (SSO) or commercial and industrial (C&I) waste or both, are treated by first pressurizing the waste against a screen to produce a solids fraction and a liquid fraction. The liquid fraction can be treated in an anaerobic digester. The solids fraction is pulverized or milled, for example with a hammer mill, preferably after being diluted. The pulverized or milled waste is separated again to provide a second solids faction and a second liquid fraction. The liquid fraction can be treated in an anaerobic digester. The solids fraction is primarily inert and can be landfilled, preferably after being washed.

An automated process for separating and recycling a broad mix of waste material including industrial and commercial streams. The process begins by collecting the broad mix of waste material. Optionally, the broad mix of waste material is sorted to remove contamination from the broad mix of waste material. Next, the broad mix of waste material is coarsely shredded. Plastic film is removed from the broad mix of waste material, creating a stream of plastic film and a separate stream of dirty cardboard. Residual plastic is separated from the cardboard stream and included either in the plastic stream or in an independent third stream. The process yields separate streams of a film-rich recycled plastic and a clean recycled cardboard having a purity of at least about 95%. Also provided are a related system and at least one computer-readable non-transitory storage medium embodying software for performing the process.

An automated process for separating and recycling a broad mix of waste material including industrial and commercial streams. The process begins by collecting the broad mix of waste material. Optionally, the broad mix of waste material is sorted to remove contamination from the broad mix of waste material. Next, the broad mix of waste material is coarsely shredded. Plastic film is removed from the broad mix of waste material, creating a stream of plastic film and a separate stream of dirty cardboard. Residual plastic is separated from the cardboard stream and included either in the plastic stream or in an independent third stream. The process yields separate streams of a film-rich recycled plastic and a clean recycled cardboard having a purity of at least about 95%. Also provided are a related system and at least one computer-readable non-transitory storage medium embodying software for performing the process.

The present invention provides a liquid-absorbing raw material processing system and its operation method. The liquid-absorbing raw material processing system is composed of a cutting module, a bulk pulping module, a salt slurry processing module, and a liquid-absorbing raw material manufacturing module, which are connected in series. The operating method of the liquid-absorbing raw material processing system is to process absorptive articles such as diapers or sanitary napkins, etc., which are retained and made into fluff liquid-absorbing raw materials through the purification and separation steps performed by the modules of the liquid-absorbing raw material processing system.

The present invention provides a liquid-absorbing raw material processing system and its operation method. The liquid-absorbing raw material processing system is composed of a cutting module, a bulk pulping module, a salt slurry processing module, and a liquid-absorbing raw material manufacturing module, which are connected in series. The operating method of the liquid-absorbing raw material processing system is to process absorptive articles such as diapers or sanitary napkins, etc., which are retained and made into fluff liquid-absorbing raw materials through the purification and separation steps performed by the modules of the liquid-absorbing raw material processing system.

An apparatus and a method for separating or sorting parts are described. For example, an apparatus can include a fluidic section that comprises an input section. The fluidic section can be configured to receive a fluid including a plurality of parts at the input section. The fluidic section can be configured to receive the fluid at an inlet port of the fluidic section. The fluidic section can include at least two branches extending from the input section, and each of these at least two branches can have an outlet through which the fluid or part of the fluid can be routed. The apparatus can include a set of sensors configured to capture information about the plurality of parts in the fluidic section. The apparatus can further include a set of actuators configured to effect, based on the information, a change in a movement of a set of parts from the plurality of parts such that the set of parts is distributed via the fluid to at least one of the at least two branches.