One method of treating incinerated waste comprises: size separating at least some of the incinerated waste into a first undersize fraction comprising particles smaller than the first separation size and into a first oversize fraction comprising particles larger than the first separation size; size reducing at least some of the first oversize fraction; size separating at least some of the size-reduced first oversize fraction into a second undersize fraction comprising particles smaller than the second separation size and into a second oversize fraction comprising particles larger than the second separation size; combining at least some of the first undersize fraction and at least some of the second undersize fraction into a fine fraction; and extracting metal from at least some of the fine fraction. Another method of treating incinerated waste comprises extracting metal by froth flotation from at least some of the incinerated waste. Systems are also disclosed.

Methods of and systems for treating incinerated waste

A manufactured item for the building industry is disclosed, made mainly of bottom ash and/or debris coming from incineration processes of municipal solid waste or of waste which may be assimilated thereto and/or of RDF and of one or more binders. Such manufactured item may have the shape of small bricks, bricks, blocks, small blocks, kerbs, interlocking paving blocks, panels, tiles, prefabricated slabs, beams, elements for walls, modular building elements, indoor and outdoor cladding elements, blocks, rocks, supports. Moreover, a process for the manufacture of an item for the building industry is disclosed, from bottom ash and/or debris coming from incineration processes of municipal solid waste or of waste which may be assimilated thereto and/or of FDR wherein said ash and/or debris undergo an oxidation process of the amphoteric metals and mixed with a binder.

Manufactured item for the building industry

A process for the recovery of bottom ash is disclosed, characterised by shredding and physical separation phases. Said bottom ash undergoes an oxidation treatment of the amphoteric metals contained therein. After the process, the treated bottom ash can be employed as mineral additive for concretes or hydraulic bonding agents.

Recovery and upgrading process of incinerator bottom ash prom municipal solid waste

The invention discloses a fly ash synthesized cement and a production method thereof. The cement is composed of the following components in percentage by weight: 50% to 90% of fly ash with a carbon content more than 5%, 5 to 40% of calcareous raw material, 1.5 to 10% of initiator, 1.5 to 10% of promoter, and 2 to 10% of corrector. The fly ash synthesized cement has the following advantages: (1) the discharge of sulfur dioxide is zero during the whole production process; (2) the production cost is reduced; (3) the cement strength is improved; (4) the residual carbon and combustible components in the raw materials can be burned; (5) the fuel cost can be saved, and the technology process is enhanced; (6) the residual carbon is taken as the fuel, thus the energy is saved, the cost is reduced, the environmental pollution is reduced, and the environment is protected; (7) the goals of decarbonization and dehydration can be achieved by burning, and moreover the adaptability of the production equipment on raw materials is improved; (8) in the milling procedure, the technology and equipment are identical with the present conventional cement clinker miller, and thus the modification and application of the technology and equipment are easy for the cement entrepreneurs; and (9) the sources of the raw materials and auxiliary materials are wide, the supply is sufficient in the market, and the selected equipment is matured and reliable and has strong universality.

Fly ash synthesized cement and production method thereof

Process for manufacturing an item for the building industry

A process for the production of a slurry of bottom ashes from
incineration of Municipal Solid Wastes (MSW) and the use thereof in the
manufacture of cement mixes with improved properties.

Aqueous slurries of ground bottom ash from incineration of municipal solid wastes for cement mixes

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Aqueous slurries of ground bottom ash from incineration of municipal solid wastes for cement mixes