A method for converting municipal solid waste to a stable solid fill-material (backfill) in the form of a multiplicity of compacted pieces, the method including mechanically reducing solid-waste piece size to form a solid-waste stream, heating the solid-waste stream and thereby killing bacteria in such stream, adding an antimicrobial agent to the solid-waste stream, and pelletizing the solid-waste stream.

The present invention relates to a system for continuously treating solid waste and an associated process based on steam injection at a temperature greater than 100° C. and at a pressure greater than the atmospheric pressure, which allow a high productivity to be achieved, require a smaller volume of the pressure vessel needed carry out the solid waste treatment, and reduce the amount of steam needed to carry out said treatment.

The invention discloses a liquefaction device of hard bone, comprising: outer cavity having upper end detachably sealed with upper cover, and lower end openable/closable sealed with lower sealing cover, first liquefaction cavity coaxially slidably disposed in outer cavity, stainless steel cage disposed coaxially in first liquefaction cavity, second liquefaction cavity fixed to outer sidewall of outer cavity such that lower end portion of outer cavity is located in second liquefaction cavity. The invention also provides a method for co-production of bone collagen polypeptide and ultrafine bone powder based on liquefaction device, including: selecting hard bones, crushing; performing first-stage and second-stage liquefaction to obtain liquid phase and solid phase; centrifuging, concentrating, drying liquid phase to obtain bone collagen polypeptide; drying, coarsely and superfine pulverizing solid phase to obtain ultrafine bone powder. The invention has effects of simplifying process, improving production efficiency, and reducing production and equipment investments.

The present invention relates to a method and apparatus for producing a product by hydrolyzing a raw material containing vegetable waste comprising, a hydrolysis treatment step of subjecting the raw material to a hydrolysis treatment with steam by a hydrolysis treatment apparatus, a washing step of washing the hydrolyzed raw material with a washing liquid by a cleaning apparatus, and a solid-liquid separation step of separating the washed raw material into a solid component and a liquid component by a solid-liquid separation apparatus, wherein at least one of the solid content or the liquid con-tent is used as the product.

The present invention relates to a pressurised-vapour autoclave characterised in that, in addition to sterilising instruments in a main chamber, it allows a second or third hermetic, exchangeable sterilising chamber to be housed inside the autoclave and connected, by means of a quick connection, to the main sterilising chamber, thus allowing access to the internal components of the autoclave such as compressors, water heaters, solenoid valves, etc., in order to sterilise sanitary waste without contaminating the main chamber with steam or ozone gas, thereby producing two or three completely autonomous and separate chambers. The present invention also relates to a method for operating the autoclave, wherein the autoclave reports the number of kilos treated by means of weight sensors on the feet of same, as well as all the internal parameters thereof by means of a GPRS-SIM circuit board.

A waste treatment system 100 for performing a hydrothermal treatment of wastes includes a hydrothermal treatment device 10 for performing the hydrothermal treatment by bringing steam into contact with the wastes, a storage facility 8, 9 for storing a fuel produced from a reactant of the hydrothermal treatment, and a heat recovery steam generator 18 for generating the steam to be supplied to the hydrothermal treatment device 10. The heat recovery steam generator 18 is configured to generate the steam by using a combustion energy generated by combustion of the fuel stored in the storage facility 8, 9.

A waste treatment system 100 for performing a hydrothermal treatment of wastes includes a hydrothermal treatment device 10 for performing the hydrothermal treatment by bringing steam into contact with the wastes, a storage facility 8, 9 for storing a fuel produced from a reactant of the hydrothermal treatment, and a heat recovery steam generator 18 for generating the steam to be supplied to the hydrothermal treatment device 10. The heat recovery steam generator 18 is configured to generate the steam by using a combustion energy generated by combustion of the fuel stored in the storage facility 8, 9.

A method is disclosed for separating plastic and cellulose from post-consumer absorbent sanitary products. The method includes sterilizing successive batches of post-consumer absorbent sanitary products in at least one rotary autoclave. The method further includes shredding the sterilized absorbent sanitary products and obtaining sterilized and shredded material containing plastic and cellulose. The method further includes drying the sterilized and shredded material containing plastic and cellulose, and separating cellulose from plastic from said sterilized, shredded and dried material in at least one centrifugal separator.

A waste treatment system 100 for performing a hydrothermal treatment of wastes includes a hydrothermal treatment device 10 for performing the hydrothermal treatment by bringing steam into contact with the wastes, a storage facility 8, 9 for storing a fuel produced from a reactant of the hydrothermal treatment, and a heat recovery steam generator 18 for generating the steam to be supplied to the hydrothermal treatment device 10. The heat recovery steam generator 18 is configured to generate the steam by using a combustion energy generated by combustion of the fuel stored in the storage facility 8, 9.

A waste treatment system, includes: at least one reformer for hydrolyzing waste; a microbial reactor for microbially degrading a reformed material containing at least a solid of the waste hydrolyzed by the at least one reformer; a microbial reaction detection device for detecting a state of degradation of the reformed material in the microbial reactor; and an adjustment device for adjusting amount and timing of supply of the reformed material to the microbial reactor, based on a detected value of the microbial reaction detection device.