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.

The present invention relates to the field of waste battery recycling, and discloses a method for treating waste diaphragm paper of a lithium battery, which includes the following steps of: (1) shearing and crushing waste diaphragm paper, and then carrying out pneumatic separation to obtain a light material and a copper-aluminum mixture; (2) putting the light material into a flotation machine for separation to obtain diaphragm paper and battery powder; and (3) pulping the battery powder, and then carrying out leaching of hydrometallurgy, pickling the diaphragm paper, and then filtering and spin-drying to obtain the diaphragm paper. According to the method, the diaphragm paper is treated by a method combining physics and chemistry, so that valuable metals in the waste diaphragm paper of the lithium battery are effectively recycled, and the industrial production requirements of environmental friendliness, low energy consumption and high resource recycling are satisfied.

A method for the alkaline digestion of soda-lime glass comprising forming a mixture of soda lime glass and a hydroxide solution, the mixture having at least 100 grams of glass per litre of H2O, the hydroxide solution having a concentration of 1M or greater to thereby form an aqueous sodium silicate fraction having a silicate concentration of 50 g/L or greater (calculated as SiO2 equivalent) and a ratio of SiO2:M2O of at least 1, wherein M2O is an alkaline metal oxide, by digesting the glass in the mixture; and separating the aqueous sodium silicate fraction from solids. The solids contain calcium silicate hydrate and undissolved glass. The calcium silicate hydrate can be CSH treated with an acid to thereby dissolve soluble metals from the CSH and separating a liquid phase from a solid phase, the solid phase comprising SiO2 or silica gel.

A method for the alkaline digestion of soda-lime glass comprising forming a mixture of soda lime glass and a hydroxide solution, the mixture having at least 100 grams of glass per litre of H2O, the hydroxide solution having a concentration of 1M or greater to thereby form an aqueous sodium silicate fraction having a silicate concentration of 50 g/L or greater (calculated as SiO2 equivalent) and a ratio of SiO2:M2O of at least 1, wherein M2O is an alkaline metal oxide, by digesting the glass in the mixture; and separating the aqueous sodium silicate fraction from solids. The solids contain calcium silicate hydrate and undissolved glass. The calcium silicate hydrate can be CSH treated with an acid to thereby dissolve soluble metals from the CSH and separating a liquid phase from a solid phase, the solid phase comprising SiO2 or silica gel.

Provided is a method for treating a sulfide, the method being suitable for obtaining nickel and/or cobalt from a sulfide containing copper and nickel and/or cobalt. The method relates to a method for treating a sulfide containing copper and nickel and/or cobalt, the method including pulverizing the sulfide by subjecting the sulfide to a pulverizing treatment so as to obtain a pulverized sulfide having a particle size of 800 μm or less; and leaching the pulverized sulfide by subjecting the pulverized sulfide to a leaching treatment with an acid under a condition in which a sulfurizing agent is present to obtain a leachate. For example, the sulfide to be treated is generated by reducing, heating, and melting a waste lithium-ion battery to obtain a molten body and adding a sulfurizing agent to the molten body to sulfurize the molten body.

A method for sterilizing and decontaminating post-consumer absorbent sanitary products contaminated by organic compounds deriving from human metabolism and comprising drug residue, said post-consumer absorbent sanitary products comprising fractions of plastic, super-absorbent polymers (SAPs), and optionally cellulose, the method comprising at least the steps of: i) sterilizing (SR) said post-consumer absorbent sanitary products by heating to a temperature equal to or lower than 140° C. and at a pressure comprised between 1 bar and 3.6 bar to obtain sterilized post-consumer absorbent sanitary products; and ii) decontaminating (DC) from organic compounds said sterilized post-consumer absorbent sanitary products by means of an oxidizing treatment. The oxidizing treatment is carried out by putting the sterilized post-consumer absorbent sanitary products in contact with a gas containing ozone preferably at a temperature equal to or higher than 60° C., more preferably comprised between 60° C. and 80° C. The sterilized post-consumer absorbent sanitary products subjected to the decontaminating step have a humidity of less than 80%, preferably comprised between 60% and 75%.

The present invention belongs to the field of energy and environmental protection and particularly relates to an organic solid waste treatment device based on chemical-looping hydrogen production and a method for using the same. The device comprises a pyrolysis reactor (3) and a sleeve-type chemical-looping reactor (19), the sleeve-type chemical-looping reactor (19) comprises an inner cavity, an outer cavity annularly wrapping the inner cavity, a syngas output device (28), a hydrogen output device (29), a pyrolysis gas inlet device (6), and a water vapor inlet device (7), and the pyrolysis reactor (3) can generate pyrolysis gas, which then is conveyed to the sleeve-type chemical-looping reactor (19) through the pyrolysis gas inlet device (6). By designing the chemical-looping reforming coupling hydrogen production continuous reaction device in the present invention, chemical-looping reforming and chemical-looping hydrogen production technologies can be realized in one process, co-production of syngas and high-concentration hydrogen can be realized without a complicated gas separation and purification system for hydrogen, the cost is low, and the operation is simple.

The present invention belongs to the field of energy and environmental protection and particularly relates to an organic solid waste treatment device based on chemical-looping hydrogen production and a method for using the same. The device comprises a pyrolysis reactor (3) and a sleeve-type chemical-looping reactor (19), the sleeve-type chemical-looping reactor (19) comprises an inner cavity, an outer cavity annularly wrapping the inner cavity, a syngas output device (28), a hydrogen output device (29), a pyrolysis gas inlet device (6), and a water vapor inlet device (7), and the pyrolysis reactor (3) can generate pyrolysis gas, which then is conveyed to the sleeve-type chemical-looping reactor (19) through the pyrolysis gas inlet device (6). By designing the chemical-looping reforming coupling hydrogen production continuous reaction device in the present invention, chemical-looping reforming and chemical-looping hydrogen production technologies can be realized in one process, co-production of syngas and high-concentration hydrogen can be realized without a complicated gas separation and purification system for hydrogen, the cost is low, and the operation is simple.

Mismanagement of infectious wastes such as test samples leads to the transmission of microbes/toxins/viruses and spread of contagious and infectious diseases. Adding a flocculating agent to liquid waste reduces the risk of spills and aerosolization. Provide is a flocculating/gelating agent comprising the sol of a selected nanomaterial with a defined weight composition in water and a poly-amino acid (polyglutamic acid), that is capable of instantaneous flocculation/gelation, thereby disinfecting both liquid as well as solid samples, rendering them non-infectious, with >99.9% microbial disinfection. Segregation, transportation and incineration of such disinfected medical wastes are easier, safer and decrease medical waste disposal costs for a healthcare facility.

Mismanagement of infectious wastes such as test samples leads to the transmission of microbes/toxins/viruses and spread of contagious and infectious diseases. Adding a flocculating agent to liquid waste reduces the risk of spills and aerosolization. Provide is a flocculating/gelating agent comprising the sol of a selected nanomaterial with a defined weight composition in water and a poly-amino acid (polyglutamic acid), that is capable of instantaneous flocculation/gelation, thereby disinfecting both liquid as well as solid samples, rendering them non-infectious, with >99.9% microbial disinfection. Segregation, transportation and incineration of such disinfected medical wastes are easier, safer and decrease medical waste disposal costs for a healthcare facility.