摘要:
A method and an apparatus for disposing wastes comprising the steps of conducting a hydrothermal decomposition reaction of the wastes, separating the products into a solid fuel and waste water, combusting the solid fuel, scrubbing the combustion gas, generating steam using the heat generated by the combustion, and purifying the waste water, exhibit a high energy-efficiency, while exhibiting a high removal rate of the pollutants generated during the combustion.
摘要:
To the reduction furnace 2 to which zinc-containing iron oxide or zinc oxide or iron oxide is supplied, there is supplied at least one of ASR, shredder dust of home electric appliances, waste plastics, refuse-derived RDF, RPF, sludge, oil mud, chips of wood, thread debris, rubber debris, and animal and plant residues, as the waste which is effective as the seducing material and functions as the heating material of generating heat necessary for reduction, thus the reduction treatment is performed with the use of the material as the heat source and without using auxiliary fuel, and thereby metallic iron is obtained by the reduction of zinc and/or iron oxide while the reduction of the treatment cost (reduction of the running cost by the amount of not-using auxiliary fuel) being performed.
摘要:
A simple and economical process for rendering the fine fraction, from crushing of vehicles and iron scraps, capable of being used in the manufacture of bituminous or cement-based conglomerates as partial substitutes of quarry inerts. Subject of the invention is also a 'reactor suitable for carrying out the above process.
摘要:
An electric arc gasifier adapts to the variable chemical components of waste products by utilizing mobile and fixed electrodes and a positioning system wherein a waste injection (9) combined with a carrier gas (9a) is injected into a heating chamber (20) and broken down into elemental components capable of being recycled. A primary fluid injection (8) is heated by an electric arc formed between two electrodes within the heating chamber (20). A secondary fluid consisting of the waste injection (9) and the carrier gas (9a) is then injected and mixed with the heated primary fluid injection (8). A reaction zone within the fixed electrode of the heating chamber (20) accelerates a resulting mixture of gases, solids, and liquids into a mixing chamber (12), wherein the resulting high-temperature, high-pressure mixture may be combined with a tertiary injection (10) and high value metals can be recovered from the solids-liquids collection vessel (14).
摘要:
This invention is to provide a method for disposing a waste which consists mainly of inorganic components and contains organic matter by detoxifying the waste at a low cost or without generating large amount of flue gas and NO x . To achieve the object, the method for disposing the waste comprises the steps of: volatilizing toxic organic matter from a waste consisting mainly of inorganic matter and containing the toxic organic matter, thus generating a gas containing the volatilized toxic organic matter; and treating the gas containing the volatilized toxic organic matter to detoxify the toxic organic matter.
摘要:
Apparatus for heat processing scrap materials, particularly for de-contaminating aluminium can scrap, as shown in the single drawing, has a rotary kiln (10) defining a furnace chamber (12) along which the material is fed; with hot gas circulation means including a duct (32) leading through the chamber from the input end to an enclosure (24) at the output end from which the gases pass back in contra-flow to the material through the furnace chamber itself to return to the input end, the remaining parts of the gas circulation means, typically including an after burner (42) through which the exhausted gases are recirculated, being at the input end of the furnace to provide a compact unitary and readily adaptable construction in which heat losses are minimised.
摘要:
There is provided a direct contact high temperature thermal desorbtion device (100) for processing contaminated material, comprising: desorbtion means (3) for performing desorbtion of contaminated material with direct contact in order to release contaminants from the contaminated material; oxidizing means (5) for performing oxidization of at least part of the contaminants; channeling means (202) for conveying the released contaminants downstream from the desorbtion means (3) to the oxidizing means (5); and air drafting means (200), located between the desorbtion means (3) and the oxidizing means (5), for generating negative pressure in the channeling means (202) between the desorbtion means (3) and the air drafting means (200) in order to move the released contaminants downstream from the desorbtion means (3).
摘要:
A method and apparatus to batch de-coat the organics in metal scrap, and/or gasify the organics from certain types of waste material (including bionnass, municipal solid waste, industrial waste, and sludge). The apparatus is suited for use on a batch tilting single entry rotary furnace (1) of the type used to melt the metal scrap in the aluminium industry. The apparatus uses a burner in the tilting rotary furnace but does not necessarily melt the metal scrap. It preferably operates below the melting temperature of the metal scrap (